SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K Current Report Pursuant To Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): ~~July~~August 25, 2003 AMERIQUEST MORTGAGE SECURITIES INC. (as depositor, Ameriquest Mortgage Company, Master Servicer, and Deutsche Bank National Trust Company, as Trustee). AMERIQUEST MORTGAGE SEC INC ASSET BACK CERT SER 2003-AR1 (Exact name of Registrant as specified in its Charter) DELAWARE (State or Other Jurisdiction of Incorporation) 333-77012-09 33-0885129 (Commission File Number) (I.R.S. Employer Identification No.) 1100 TOWN & COUNTRY ROAD, SUITE 1100 ORANGE, CALIFORNIA 92868 (Address of principal executive offices) (Zip Code) Registrant's Telephone Number, Including Area Code: (714) 541-9960 Item 5. Other Events Attached hereto is a copy of the Monthly Remittance Statements to the Certificateholders which was derived from the monthly information submitted by the Master Servicer of the Trust to the Trustee. Item 7. Financial Statement and Exhibits Exhibits: (as noted in Item 5 above) Monthly Remittance Statement to the Certificateholders dated as of ~~July~~August 25, 2003. SIGNATURE Pursuant to the requirements of the Securities Exchange Act of 1934, the Registrant has duly caused this report to be signed on its behalf by the undersigned, hereunto duly authorized. Deutsche Bank National Trust Company, not in its individual capacity, but solely as a duly authorized agent of the Registrant pursuant to the Pooling and Servicing Agreement, dated as of January 1,2003. Date: Aug 0128, 2003 By: /s/ Katherine M. Wannenmacher Katherine M. Wannenmacher Vice President EXHIBIT INDEX DOCUMENT Monthly Remittance Statement to the Certificateholders dated as of ~~July~~August 25, 2003.

	Ameriquest Mortgage Securities Inc. 2003-AR1
	Mortgage Pass-Through Certificates
	July 25, 2003 Distribution
	August 25, 2003 Distribution
	Contents
			TABLE OF CONTENTS
								Page
			1.	Contents				1
			2.	Certificate Payment Report				2
			3.	Collection Account Report				4
			4.	Credit Enhancement Report				7
			5.	Collateral Report				8
			6.	Delinquency Report				11
			7.	REO Report				14
			8.	Foreclosure Report				15
			9.	Prepayment Report				16
			10.	Prepayment Detail Report				19
			11.	Realized Loss Report				2021
			12.	Realized Loss Detail Report				2324
			13.	Triggers, Adj. Rate Cert. and Miscellaneous Report				2425
				Total Number of Pages				2425
			CONTACTS
				Administrator: Valerie Delgado
				Direct Phone Number: (714)247-6273
				Address: Deutsche Bank
				1761 E. St. Andrew Place, Santa Ana, CA 92705
				Web Site: https://www.corporatetrust.db.com/invr
				Factor Information: (800) 735-7777
				Main Phone Number: (714) 247-6000
ISSUANCE INFORMATION
	Seller:		Ameriquest Mtg Sec Inc					Cut-Off Date: January 1, 2003
	Certificate Insurer(s):							Closing Date: January 17, 2003
								First Payment Date: February 25, 2003
	Servicer(s):		Ameriquest Mortgage Corp Master Servicer
								Distribution Date: July 25, 2003
								Distribution Date: August 25, 2003
	Underwriter(s):		UBS Warburg Underwriter					Record Date: ~~July~~August 2422, 2003
								June 30, 2003
								July 31, 2003
						Page 1 of 24					© COPYRIGHT 2003 Deutsche Bank
						Page 1 of 25					© COPYRIGHT 2003 Deutsche Bank
	Ameriquest Mortgage Securities Inc. 2003-AR1
	Mortgage Pass-Through Certificates
	REMIC II
	Certificate Payment Report for July 25, 2003 Distribution
	Certificate Payment Report for August 25, 2003 Distribution
	Distribution in Dollars - Current Period
					Prior						Current
	Class	Original			Principal			Total	Realized	Deferred	Principal
Class	Type	Face Value			Balance	Interest	Principal	Distribution	Losses	Interest	Balance
					(1)	(2)	(3)	(4)=(2)+(3)	(5)	(6)	(7)=(1)-(3)-(5)+(6)
A-1		238,211,000.00			~~230~~226,~~807~~293,~~467~~125.3809	~~293~~309,~~317~~833.8200	47,~~514~~027,~~342~~789.2983	47,~~807~~337,~~660~~622.1183	-	-	~~226~~219,~~293~~265,~~125~~335.0926
A-2		109,794,000.00			~~107~~104,~~002~~305,~~391~~425.8661	~~135~~142,~~982~~811.2151	2,~~696~~487,~~966~~441.2559	2,~~832~~630,~~948~~253.4610	-	-	~~104~~101,~~305~~817,~~425~~984.6102
M-1		17,000,000.00			17,000,000.00	3032,~~954~~937.1750	-	3032,~~954~~937.1750	-	-	17,000,000.00
M-2		14,000,000.00			14,000,000.00	3638,~~575~~577.0078	-	3638,~~575~~577.0078	-	-	14,000,000.00
M-3		12,000,000.00			12,000,000.00	4042,~~350~~366.0067	-	4042,~~350~~366.0067	-	-	12,000,000.00
M-4		3,000,000.00			3,000,000.00	15,000.00	-	15,000.00	-	-	3,000,000.00
CE		6,000,098.88			6,000,078.00	1,~~501~~434,~~423~~023.2209	-	1,~~501~~434,~~423~~023.2209	-	-	6,000,078.00
P		100.00			100.00	~~135~~242,~~789~~851.8562	-	~~135~~242,~~789~~851.8562	-	-	100.00
R		-			-	-	-	-	-	-	-
Total		400,005,198.88			~~389~~382,~~810~~598,~~037~~728.2470	2,~~189~~258,~~392~~401.2717	79,~~211~~515,~~308~~231.5442	911,~~400~~773,~~700~~632.8159	-	-	~~382~~373,~~598~~083,~~728~~497.7028
	Interest Accrual Detail				Current Period Factor Information per $1,000 of Original Face
						Orig. Principal	Prior				Current
	Period	Period				(with Notional)	Principal			Total	Principal
Class	Starting	Ending		Method	Cusip	Balance	Balance	Interest	Principal	Distribution	Balance
							(1)	(2)	(3)	(4)=(2)+(3)	(5)
A-1	0607/25/03	0708/24/03		A-Act/360	03072SEG6	238,211,000.00	~~968~~949.~~920274~~969250	1.~~231336~~300666	1829.~~951024~~502373	2030.~~182360~~803039	~~949~~920.~~969250~~466877
A-2	0607/25/03	0708/24/03		A-Act/360	03072SEH4	109,794,000.00	~~974~~950.~~574128~~010252	1.~~238521~~300722	2422.~~563876~~655533	2523.~~802398~~956255	~~950~~927.~~010252~~354719
M-1	0607/25/03	0708/24/03		A-Act/360	03072SEJ0	17,000,000.00	1,000.000000	1.~~820834~~937500	-	1.~~820834~~937500	1,000.000000
M-2	0607/25/03	0708/24/03		A-Act/360	03072SEK7	14,000,000.00	1,000.000000	2.~~612500~~755556	-	2.~~612500~~755556	1,000.000000
M-3	0607/25/03	0708/24/03		A-Act/360	03072SEL5	12,000,000.00	1,000.000000	3.~~362500~~530556	-	3.~~362500~~530556	1,000.000000
M-4				A-30/360	03072SEM3	3,000,000.00	1,000.000000	5.000000	-	5.000000	1,000.000000
CE				A-30/360		6,000,098.88	999.996520	~~250~~238.~~233080~~999910	-	~~250~~238.~~233080~~999910	999.996520
P				A-Act/360		100.00	1,000.000000	12,~~357~~428,~~898~~516.~~500000~~200000	-	12,~~357~~428,~~898~~516.~~500000~~200000	1,000.000000
R				A-Act/360		-	-	-	-	-	-
							Page 2 of 24				© COPYRIGHT 2003 Deutsche Bank
							Page 2 of 25				© COPYRIGHT 2003 Deutsche Bank
	Ameriquest Mortgage Securities Inc. 2003-AR1
	Mortgage Pass-Through Certificates
	REMIC II
	Certificate Payment Report for July 25, 2003 Distribution
	Certificate Payment Report for August 25, 2003 Distribution
	Distribution in Dollars - to Date
											Current
	Original				Unscheduled	Scheduled	Total	Total	Realized	Deferred	Principal
Class	Face Value		Interest		Principal	Principal	Principal	Distribution	Losses	Interest	Balance
	(1)		(2)		(3)	(4)	(5)=(3)+(4)	(6)=(2)+(5)	(7)	(8)	(9)=(1)-(5)-(7)+(8)
A-1	238,211,000.00		2,~~196~~506,~~606~~439.05		1017,~~610~~422,~~641~~108.7046	1,~~307~~523,~~233~~556.2128	1118,~~917~~945,~~874~~664.9174	1421,~~114~~452,~~480~~103.9679	-	-	~~226~~219,~~293~~265,~~125~~335.0926
A-2	109,794,000.00		1,~~015~~157,~~115~~926.0758		57,~~001~~412,~~606~~481.1455	~~486~~563,~~968~~534.2543	57,~~488~~976,~~574~~015.3998	69,~~503~~133,~~689~~942.4656	-	-	~~104~~101,~~305~~817,~~425~~984.6102
M-1	17,000,000.00		~~217~~250,~~257~~194.0555		-	-	-	~~217~~250,~~257~~194.0555	-	-	17,000,000.00
M-2	14,000,000.00		~~248~~287,~~742~~320.5735		-	-	-	~~248~~287,~~742~~320.5735	-	-	14,000,000.00
M-3	12,000,000.00		~~269~~312,~~907~~274.9259		-	-	-	~~269~~312,~~907~~274.9259	-	-	12,000,000.00
M-4	3,000,000.00		90105,000.00		-	-	-	90105,000.00	-	-	3,000,000.00
CE	6,000,098.88		89,~~527~~961,~~561~~584.5968		6.82	14.06	20.88	89,~~527~~961,~~582~~605.4756	-	-	6,000,078.00
P	100.00		~~305~~548,~~701~~553.4608		-	-	-	~~305~~548,~~701~~553.4608	-	-	100.00
R	-		-		-	-	-	-	-	-	-
Total	400,005,198.88		1215,~~870~~129,~~891~~292.7188		1524,~~612~~834,~~254~~596.6683	12,~~794~~087,~~215~~104.5277	1726,~~406~~921,~~470~~701.1860	3042,~~277~~050,~~361~~994.8948	-	-	~~382~~373,~~598~~083,~~728~~497.7028
	Interest Detail
	Pass-	Prior Principal				Non-	Prior	Unscheduled		Paid or	Current
	Through	(with Notional)			Accrued	Supported	Unpaid	Interest	Optimal	Deferred	Unpaid
Class	Rate	Balance			Interest	Interest SF	Interest	Adjustments	Interest	Interest	Interest
					(1)	(2)	(3)	(4)	(5)=(1)-(2)+(3)+(4)	(6)	(7)=(5)-(6)
A-1	1.~~52500~~59000%	~~230~~226,~~807~~293,~~467~~125.3809			~~293~~309,~~317~~833.8200	-	-	-	~~293~~309,~~317~~833.8200	~~293~~309,~~317~~833.8200	-
A-2	1.~~52500~~59000%	~~107~~104,~~002~~305,~~391~~425.8661			~~135~~142,~~982~~811.2151	-	-	-	~~135~~142,~~982~~811.2151	~~135~~142,~~982~~811.2151	-
M-1	2.~~18500~~25000%	17,000,000.00			3032,~~954~~937.1750	-	-	-	3032,~~954~~937.1750	3032,~~954~~937.1750	-
M-2	3.~~13500~~20000%	14,000,000.00			3638,~~575~~577.0078	-	-	-	3638,~~575~~577.0078	3638,~~575~~577.0078	-
M-3	4.~~03500~~10000%	12,000,000.00			4042,~~350~~366.0067	-	-	-	4042,~~350~~366.0067	4042,~~350~~366.0067	-
M-4	6.00000%	3,000,000.00			15,000.00	-	-	-	15,000.00	15,000.00	-
CE		6,000,078.00			1,~~501~~434,~~423~~023.2209	-	-	-	1,~~501~~434,~~423~~023.2209	1,~~501~~434,~~423~~023.2209	-
P		100.00			~~135~~242,~~789~~851.8562	-	-	-	~~135~~242,~~789~~851.8562	~~135~~242,~~789~~851.8562	-
R		-			-	-	-	-	-	-	-
Total		~~389~~382,~~810~~598,~~037~~728.2470			2,~~189~~258,~~392~~401.2717	-	-	-	2,~~189~~258,~~392~~401.2717	2,~~189~~258,~~392~~401.2717	-
							Page 3 of 24				© COPYRIGHT 2003 Deutsche Bank
							Page 3 of 25				© COPYRIGHT 2003 Deutsche Bank
	Ameriquest Mortgage Securities Inc. 2003-AR1
	Mortgage Pass-Through Certificates
	Collection Account Report for July 25, 2003 Distribution
	Collection Account Report for August 25, 2003 Distribution
	Collection Account Report
SUMMARY						GROUP 2	GROUP 1	TOTAL
	Principal Collections					2,~~696~~487,~~966~~441.2559	47,~~514~~027,~~342~~789.2983	79,~~211~~515,~~308~~231.5442
	Principal Other Accounts					0.00	0.00	0.00
	TOTAL NET PRINCIPAL					2,~~696~~487,~~966~~441.2559	47,~~514~~027,~~342~~789.2983	79,~~211~~515,~~308~~231.5442
	Interest Collections					~~741~~725,~~904~~310.2709	1,~~738~~707,~~782~~638.9060	2,~~480~~432,~~687~~948.1769
	Interest Withdrawals					0.00	0.00	0.00
	Interest Other Accounts					0.00	0.00	~~135~~242,~~789~~851.8562
	Interest Fees					(~~124~~122,~~572~~297.3005)	(~~302~~295,~~512~~102.4409)	(~~427~~417,~~084~~399.7514)
	TOTAL NET INTEREST					~~617~~603,~~331~~013.9704	1,~~436~~412,~~270~~536.4651	2,~~189~~258,~~392~~401.2717
	TOTAL AVAILABLE FUNDS FOR DISTRIBUTION					3,~~314~~090,~~298~~454.2263	58,~~950~~440,~~612~~326.7534	911,~~400~~773,~~700~~632.8159
PRINCIPAL - COLLECTIONS						GROUP 2	GROUP 1	TOTAL
	Scheduled Principal Received					~~104~~103,~~662~~703.2593	~~192~~189,~~389~~185.7132	~~297~~292,~~051~~889.9625
	Prepayments In Full					2,~~576~~380,~~370~~226.9729	46,~~303~~831,~~502~~149.6642	69,~~879~~211,~~873~~375.6371
	Curtailments					153,~~933~~511.0337	187,~~449~~455.9209	3410,~~382~~966.9546
	Liquidations					0.00	0.00	0.00
	Insurance Principal					0.00	0.00	0.00
	Repurchased Principal Amounts					0.00	0.00	0.00
	Other Principal					0.00	0.00	0.00
	Total Realized Loss Of Principal					0.00	0.00	0.00
	Delinquent Principal					(4948,~~993~~871.6044)	(8687,~~214~~134.6100)	(136,~~208~~005.2144)
	Advanced Principal					4948,~~993~~871.6044	8687,~~214~~134.6100	136,~~208~~005.2144
	TOTAL PRINCIPAL COLLECTED					2,~~696~~487,~~966~~441.2559	47,~~514~~027,~~342~~789.2983	79,~~211~~515,~~308~~231.5442
				Page 4 of 24				© COPYRIGHT 2003 Deutsche Bank
				Page 4 of 25				© COPYRIGHT 2003 Deutsche Bank
	Ameriquest Mortgage Securities Inc. 2003-AR1
	Mortgage Pass-Through Certificates
	Collection Account Report for July 25, 2003 Distribution
	Collection Account Report for August 25, 2003 Distribution
	Collection Account Report
PRINCIPAL - WITHDRAWALS						GROUP 2	GROUP 1	TOTAL
SPACE INTENTIONALLY LEFT BLANK
PRINCIPAL - OTHER ACCOUNTS						GROUP 2	GROUP 1	TOTAL
	TOTAL OTHER ACCOUNTS PRINCIPAL					0.00	0.00	0.00
INTEREST - COLLECTIONS						GROUP 2	GROUP 1	TOTAL
	Scheduled Interest					~~766~~749,~~794~~482.5506	1,~~788~~757,~~703~~725.7420	2,~~555~~507,~~498~~207.2926
	Liquidation Interest					0.00	0.00	0.00
	Repurchased Interest					0.00	0.00	0.00
	Insurance Interest					0.00	0.00	0.00
	Other Interest					0.00	0.00	0.00
	Relief Act Interest Shortfalls					0.00	0.00	0.00
	Prepayment Interest Shortfalls					(~~2,738~~690.2817)	(35,~~120~~689.2207)	(56,~~858~~379.5024)
	Compensating Interest					~~2,738~~690.2817	35,~~120~~689.2207	56,~~858~~379.5024
	Delinquent Interest					(~~375~~366,~~711~~842.0186)	(~~809~~812,~~379~~982.0929)	(1,~~185~~179,~~090~~825.1015)
	Interest Advanced					~~350~~342,~~820~~670.7389	~~759~~762,~~458~~895.2569	1,~~110~~105,~~278~~566.9858
	TOTAL INTEREST COLLECTED					~~741~~725,~~904~~310.2709	1,~~738~~707,~~782~~638.9060	2,~~480~~432,~~687~~948.1769
				Page 5 of 24				© COPYRIGHT 2003 Deutsche Bank
				Page 5 of 25				© COPYRIGHT 2003 Deutsche Bank
	Ameriquest Mortgage Securities Inc. 2003-AR1
	Mortgage Pass-Through Certificates
	Collection Account Report for July 25, 2003 Distribution
	Collection Account Report for August 25, 2003 Distribution
	Collection Account Report
INTEREST - WITHDRAWALS						GROUP 2	GROUP 1	TOTAL
	Trust Fund Expenses							0.00
	Nonrecoverable Advances							0.00
	Reimbursements to Master Servicer							0.00
	TOTAL INTEREST WITHDRAWALS							0.00
INTEREST - OTHER ACCOUNTS						GROUP 2	GROUP 1	TOTAL
	Prepayment Charges							~~135~~242,~~789~~851.8562
	Capitalized Interest Requirement							0.00
	TOTAL INTEREST OTHER ACCOUNTS							~~135~~242,~~789~~851.8562
INTEREST - FEES						GROUP 2	GROUP 1	TOTAL
	Current Servicing Fees					26,~~529~~124.5816	6159,~~080~~033.1440	8785,~~609~~157.7256
	PMI Insurance Premium					9795,~~374~~519.2704	~~239~~234,~~989~~650.2913	~~337~~330,~~363~~169.5617
	Trustee Fee					~~668~~653.4685	1,~~443~~418.0156	2,~~111~~072.4741
	TOTAL INTEREST OTHER FEES					~~124~~122,~~572~~297.3005	~~302~~295,~~512~~102.4409	~~427~~417,~~084~~399.7514
				Page 6 of 24				© COPYRIGHT 2003 Deutsche Bank
				Page 6 of 25				© COPYRIGHT 2003 Deutsche Bank
	Ameriquest Mortgage Securities Inc. 2003-AR1
	Mortgage Pass-Through Certificates
	Credit Enhancement Report for July 25, 2003 Distribution
	Credit Enhancement Report for August 25, 2003 Distribution
	Credit Enhancement Report
ACCOUNTS						GROUP 2	GROUP 1	TOTAL
	Net WAC Rate Carryover Reserve Account							1,000.00
INSURANCE						GROUP 2	GROUP 1	TOTAL
	Payments received under PMI policy							0.00
	Claims denied under PMI policy							0.00
	Cumulative Payments received under PMI policy							0.00
	Cumulative Claims denied under PMI policy							0.00
STRUCTURAL FEATURES						GROUP 2	GROUP 1	TOTAL
	Overcollateralized Amount							6,000,078.00
	Overcollateralization Release Amount							0.00
	Overcollateralization Deficiency Amount							0.00
	Overcollateralization Target Amount							6,000,078.00
	Excess Overcollateralization Amount							0.00
				Page 7 of 24				© COPYRIGHT 2003 Deutsche Bank
				Page 7 of 25				© COPYRIGHT 2003 Deutsche Bank
	Ameriquest Mortgage Securities Inc. 2003-AR1
	Mortgage Pass-Through Certificates
	Collateral Report for July 25, 2003 Distribution
	Collateral Report for August 25, 2003 Distribution
	Collateral Report
COLLATERAL						GROUP 2	GROUP 1	TOTAL
	Loan Count:
	Original					536	1786	2322
	Prior					~~528~~519	1,~~749~~726	2,~~277~~245
	Prefunding					-	-	-
	Scheduled Paid Offs					-	-	-
	Full Voluntary Prepayments					(911)	(2337)	(3248)
	Repurchases					-	-	-
	Liquidations					-	-	-
	Current					~~519~~508	1,~~726~~689	2,~~245~~197
	Principal Balance:
	Original					126,199,291.41	273,805,907.47	400,005,198.88
	Prior					~~123~~120,~~407~~710,~~677~~711.7954	~~266~~261,~~402~~888,~~359~~017.4516	~~389~~382,~~810~~598,~~037~~728.2470
	Prefunding					-	-	-
	Scheduled Principal					(~~104~~103,~~662~~703.2593)	(~~192~~189,~~389~~185.7132)	(~~297~~292,~~051~~889.9625)
	Partial and Full Voluntary Prepayments					(2,~~592~~383,~~304~~737.0066)	(46,~~321~~838,~~952~~604.5851)	(69,~~914~~222,~~256~~342.5817)
	Repurchases					-	-	-
	Liquidations					-	-	-
	Current					~~120~~118,~~710~~223,~~711~~269.5495	~~261~~254,~~888~~860,~~017~~227.1633	~~382~~373,~~598~~083,~~728~~497.7028
PREFUNDING						GROUP 2	GROUP 1	TOTAL
SPACE INTENTIONALLY LEFT BLANK
	Group 1
	Group 2
Current Prin Balance by Groups (in millions of dollars)					Total Current Principal Balance (in millions of dollars)
				Page 8 of 24				© COPYRIGHT 2003 Deutsche Bank
				Page 8 of 25				© COPYRIGHT 2003 Deutsche Bank
	Ameriquest Mortgage Securities Inc. 2003-AR1
	Mortgage Pass-Through Certificates
	Collateral Report for July 25, 2003 Distribution
	Collateral Report for August 25, 2003 Distribution
	Collateral Report
CHARACTERISTICS						GROUP 2	GROUP 1	TOTAL
	Weighted Average Coupon Original					7.464930%	8.068125%	7.877820%
	Weighted Average Coupon Prior					7.~~457282~~456209%	8.~~065452~~057153%	7.~~873068~~866904%
	Weighted Average Coupon Current					7.~~456209~~450693%	8.~~057153~~054092%	7.~~866904~~863719%
	Weighted Average Months to Maturity Original					353	357	356
	Weighted Average Months to Maturity Prior					~~348~~347	~~352~~351	~~351~~350
	Weighted Average Months to Maturity Current					~~347~~346	~~351~~350	~~350~~349
	Weighted Avg Remaining Amortization Term Original					352	356	355
	Weighted Avg Remaining Amortization Term Prior					~~348~~347	~~352~~351	~~351~~350
	Weighted Avg Remaining Amortization Term Current					~~347~~346	~~351~~350	~~350~~349
	Weighted Average Seasoning Original					1.24	1.41	1.36
	Weighted Average Seasoning Prior					56.24	56.41	56.3635
	Weighted Average Seasoning Current					67.2423	67.41	67.35
Note: Original information refers to deal issue.
	Group 1
	Group 2
WAC by Groups					Total WAC
WARAT by Groups					Total WARAT
Note: Dates correspond to distribution dates.
				Page 9 of 24				© COPYRIGHT 2003 Deutsche Bank
				Page 9 of 25				© COPYRIGHT 2003 Deutsche Bank
	Ameriquest Mortgage Securities Inc. 2003-AR1
	Mortgage Pass-Through Certificates
	Collateral Report for July 25, 2003 Distribution
	Collateral Report for August 25, 2003 Distribution
	Collateral Report
ARM CHARACTERISTICS						GROUP 2	GROUP 1	TOTAL
	Weighted Average Margin Original					2.268%	5.515%
	Weighted Average Margin Prior					2.~~248~~225%	5.~~509~~499%
	Weighted Average Margin Current					2.~~225~~209%	5.~~499~~495%
	Weighted Average Max Rate Original					5.082%	12.056%
	Weighted Average Max Rate Prior					54.~~041~~998%	12.~~042~~012%
	Weighted Average Max Rate Current					4.~~998~~965%	12.~~012~~007%
	Weighted Average Min Rate Original					7.465%	8.071%
	Weighted Average Min Rate Prior					7.~~457~~456%	8.~~070~~061%
	Weighted Average Min Rate Current					7.~~456~~451%	8.~~061~~058%
	Weighted Average Cap Up Original					0.352%	0.851%
	Weighted Average Cap Up Prior					0.~~349~~346%	0.~~850~~849%
	Weighted Average Cap Up Current					0.~~346~~343%	0.~~849~~848%
	Weighted Average Cap Down Original					0.352%	0.851%
	Weighted Average Cap Down Prior					0.~~349~~346%	0.~~850~~849%
	Weighted Average Cap Down Current					0.~~346~~343%	0.~~849~~848%
Note: Original information refers to deal issue.
SERVICING FEES / ADVANCES						GROUP 2	GROUP 1	TOTAL
	Current Servicing Fees					26,~~529~~124.5816	6159,~~080~~033.1440	8785,~~609~~157.7256
	Delinquent Servicing Fees					24,~~890~~171.2997	4950,~~920~~086.8460	74,~~811~~258.1357
	TOTAL SERVICING FEES					5150,~~419~~296.8713	~~111~~109,~~000~~120.9800	~~162~~159,~~420~~416.8513
	Compensating Interest					(~~2,738~~690.2817)	(35,~~120~~689.2207)	(56,~~858~~379.5024)
	Delinquent Servicing Fees					24,~~890~~171.2997	(4950,~~920~~086.8460)	(25,~~030~~914.5563)
	COLLECTED SERVICING FEES					73,~~571~~777.8893	5753,~~959~~344.9233	~~131~~127,~~531~~122.8026
	Aggregate Advances with respect to this Distribution					~~400~~391,~~814~~542.33	~~845~~850,~~672~~029.8669	1,~~246~~241,~~487~~572.1902
	Current Nonrecoverable Advances					0.00	0.00	0.00
	Cumulative Nonrecoverable Advances					0.00	0.00	0.00
ADDITIONAL COLLATERAL INFORMATION						GROUP 2	GROUP 1	TOTAL
	Net Prepayment Interest Shortfall					0.00	0.00	0.00
				Page 10 of 24				© COPYRIGHT 2003 Deutsche Bank
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	Ameriquest Mortgage Securities Inc. 2003-AR1
	Mortgage Pass-Through Certificates
	Delinquency Report for July 25, 2003 Distribution
	Delinquency Report for August 25, 2003 Distribution
	Delinquency Report - Total
				<1 PAYMENT	1 PAYMENT	2 PAYMENTS	3+ PAYMENTS	TOTAL
DELINQUENT		Balance			25,~~576~~823,~~812~~266.3038	12,~~862~~420,~~466~~871.4221	21,~~820~~662,~~408~~821.2896	79,~~259~~906,~~687~~959.0055
		% Balance			01.6756%	0.4965%	0.7445%	12.9066%
		# Loans			1738	1514	1710	4962
		% # Loans			01.7673%	0.6764%	0.7646%	2.1882%
FORECLOSURE		Balance		-	-	-	24,~~068~~050,~~065~~803.7247	24,~~068~~050,~~065~~803.7247
		% Balance		0.00%	0.00%	0.00%	01.5409%	01.5409%
		# Loans		-	-	-	1125	1125
		% # Loans		0.00%	0.00%	0.00%	01.4914%	01.4914%
BANKRUPTCY		Balance		1663,~~336,515~~797.2103	-300,280.06	~~89,658.73~~-	~~270~~360,~~940~~443.2983	1,~~697~~324,~~114~~520.2392
		% Balance		0.3518%	0.0008%	0.0200%	0.0710%	0.4436%
		# Loans		94	-3	1-	23	1210
		% # Loans		0.4018%	0.0014%	0.0400%	0.0914%	0.5346%
REO		Balance		-	-	-	-98,599.43	-98,599.43
		% Balance		0.00%	0.00%	0.00%	0.0003%	0.0003%
		# Loans		-	-	-	-1	-1
		% # Loans		0.00%	0.00%	0.00%	0.0005%	0.0005%
TOTAL		Balance		1663,~~336,515~~797.2103	26,~~576~~123,~~812~~546.3044	12,~~952~~420,~~125~~871.1521	56,~~159~~172,~~414~~668.2969	1115,~~024~~380,~~866~~883.9537
		% Balance		0.3518%	01.6764%	0.5165%	1.3565%	24.8812%
		# Loans		94	1741	1614	3039	7298
		% # Loans		0.4018%	01.7687%	0.7164%	1.3478%	34.2146%
Note: <1 Payment = 0-29days, 1 Payment = 30-59days, 2 Payments = 60-89days, 3+ Payments = 90+
								6 Months Moving Average
1 or 2 Payments Delinquent					3 or More Payments Delinquent
Total Foreclosure					Total Bankruptcy and REO
Note: Dates correspond to distribution dates.
				Page 11 of 24				© COPYRIGHT 2003 Deutsche Bank
				Page 11 of 25				© COPYRIGHT 2003 Deutsche Bank
	Ameriquest Mortgage Securities Inc. 2003-AR1
	Mortgage Pass-Through Certificates
	Delinquency Report for July 25, 2003 Distribution
	Delinquency Report for August 25, 2003 Distribution
	Delinquency Report - Group 1 Group
				<1 PAYMENT	1 PAYMENT	2 PAYMENTS	3+ PAYMENTS	TOTAL
DELINQUENT		Balance			15,~~703~~226,~~694~~086.8558	12,~~740~~023,~~005~~004.6304	1,~~432~~150,~~360~~811.3269	48,~~876~~399,~~060~~902.8031
		% Balance			02.6505%	0.6679%	0.5545%	13.8630%
		# Loans			1435	13	128	3956
		% # Loans			02.8107%	0.7577%	0.7047%	23.2632%
FORECLOSURE		Balance		-	-	-	~~734~~1,~~430~~785,507.7605	~~734~~1,~~430~~785,507.7605
		% Balance		0.00%	0.00%	0.00%	0.2870%	0.2870%
		# Loans		-	-	-	717	717
		% # Loans		0.00%	0.00%	0.00%	01.4101%	01.4101%
BANKRUPTCY		Balance		1663,~~110,880~~797.2803	-300,280.06	~~89,658.73~~-	~~270~~360,~~940~~443.2983	1,~~471~~324,~~479~~520.3092
		% Balance		0.4226%	0.0012%	0.0300%	0.1014%	0.5652%
		# Loans		84	-3	1-	23	1110
		% # Loans		0.4624%	0.0018%	0.0600%	0.1218%	0.6459%
REO		Balance		-	-	-	-98,599.43	-98,599.43
		% Balance		0.00%	0.00%	0.00%	0.0004%	0.0004%
		# Loans		-	-	-	-1	-1
		% # Loans		0.00%	0.00%	0.00%	0.0006%	0.0006%
TOTAL		Balance		1663,~~110,880~~797.2803	15,~~703~~526,~~694~~366.8564	12,~~829~~023,~~664~~004.3604	23,~~437~~395,~~731~~362.3700	711,~~081~~608,~~970~~529.8671
		% Balance		0.4226%	02.6517%	0.7079%	01.9333%	24.7055%
		# Loans		84	1438	1413	2129	5784
		% # Loans		0.4624%	02.8125%	0.8177%	1.2272%	34.3097%
Note: <1 Payment = 0-29days, 1 Payment = 30-59days, 2 Payments = 60-89days, 3+ Payments = 90+
								6 Months Moving Average
1 or 2 Payments Delinquent					3 or More Payments Delinquent
Total Foreclosure					Total Bankruptcy and REO
Note: Dates correspond to distribution dates.
				Page 12 of 24				© COPYRIGHT 2003 Deutsche Bank
				Page 12 of 25				© COPYRIGHT 2003 Deutsche Bank
	Ameriquest Mortgage Securities Inc. 2003-AR1
	Mortgage Pass-Through Certificates
	Delinquency Report for July 25, 2003 Distribution
	Delinquency Report for August 25, 2003 Distribution
	Delinquency Report - Group 2 Group
				<1 PAYMENT	1 PAYMENT	2 PAYMENTS	3+ PAYMENTS	TOTAL
DELINQUENT		Balance			~~873~~597,~~117~~179.4580	~~122~~397,~~460~~867.7917	1512,~~388,047~~010.9627	21,~~383~~507,~~626~~057.2024
		% Balance			0.7251%	0.1034%	10.1543%	1.9727%
		# Loans			3	21	52	106
		% # Loans			0.5859%	0.3920%	0.9639%	1.9318%
FORECLOSURE		Balance		-	-	-	12,~~333~~265,~~634~~296.9642	12,~~333~~265,~~634~~296.9642
		% Balance		0.00%	0.00%	0.00%	1.1092%	1.1092%
		# Loans		-	-	-	48	48
		% # Loans		0.00%	0.00%	0.00%	01.7757%	01.7757%
BANKRUPTCY		Balance		~~225,634.93~~-	-	-	-	~~225,634.93~~-
		% Balance		0.1900%	0.00%	0.00%	0.00%	0.1900%
		# Loans		1-	-	-	-	1-
		% # Loans		0.1900%	0.00%	0.00%	0.00%	0.1900%
REO		Balance		-	-	-	-	-
		% Balance		0.00%	0.00%	0.00%	0.00%	0.00%
		# Loans		-	-	-	-	-
		% # Loans		0.00%	0.00%	0.00%	0.00%	0.00%
TOTAL		Balance		~~225,634.93~~-	~~873~~597,~~117~~179.4580	~~122~~397,~~460~~867.7917	2,~~721~~777,~~682~~306.9269	3,~~942~~772,~~896~~353.0966
		% Balance		0.1900%	0.7251%	0.1034%	2.2535%	3.2719%
		# Loans		1-	3	21	910	1514
		% # Loans		0.1900%	0.5859%	0.3920%	1.7397%	2.8976%
Note: <1 Payment = 0-29days, 1 Payment = 30-59days, 2 Payments = 60-89days, 3+ Payments = 90+
								6 Months Moving Average
1 or 2 Payments Delinquent					3 or More Payments Delinquent
Total Foreclosure					Total Bankruptcy and REO
Note: Dates correspond to distribution dates.
				Page 13 of 24				© COPYRIGHT 2003 Deutsche Bank
				Page 13 of 25				© COPYRIGHT 2003 Deutsche Bank
	Ameriquest Mortgage Securities Inc. 2003-AR1
	Mortgage Pass-Through Certificates
	REO Report for July 25, 2003 Distribution
	REO Report for August 25, 2003 Distribution
	REO Report - Mortgage Loans that Become REO During Current Distribution
SUMMARY				LOAN GROUP
Total Loan Count = 0				Loan Group 1 = Group 1 Group; REO Book Value = 000.00
Total Loan Count = 1				Loan Group 1 = Group 1 Group; REO Book Value = Not Available
Total Original Principal Balance = 000.00				Loan Group 2 = Group 2 Group; REO Book Value = 000.00
Total Original Principal Balance = 99,000.00				Loan Group 2 = Group 2 Group; REO Book Value = Not Available
Total Current Balance = 000.00
Total Current Balance = 98,599.43
REO Book Value = 000.00
REO Book Value = Not Available
REO Book Value reported corresponds to total REO loans, including loans that become REO during current distribution.
Loan Number		Original	Stated		Current	State &
&		Principal	Principal	Paid to	Note	LTV at	Original	Origination
Loan Group		Balance	Balance	Date	Rate	Origination	Term	Date
SPACE INTENTIONALLY LEFT BLANK
40129447 1		99,000.00	98,599.43	Jan-01-03	9.500%	MI - 90.00%	360	Nov-07-02
				Page 14 of 24				© COPYRIGHT 2003 Deutsche Bank
				Page 14 of 25				© COPYRIGHT 2003 Deutsche Bank
	Ameriquest Mortgage Securities Inc. 2003-AR1
	Mortgage Pass-Through Certificates
	Foreclosure Report for July 25, 2003 Distribution
	Foreclosure Report for August 25, 2003 Distribution
	Foreclosure Report - Mortgage Loans that Become Foreclosure During Current Distribution
SUMMARY				LOAN GROUP
Total Loan Count = 9				Loan Group 1 = Group 1 Group
Total Loan Count = 15				Loan Group 1 = Group 1 Group
Total Original Principal Balance = 1,598,700.00				Loan Group 2 = Group 2 Group
Total Original Principal Balance = 2,093,000.00				Loan Group 2 = Group 2 Group
Total Current Balance = 1,592,661.16
Total Current Balance = 2,082,538.58
Loan Number		Original	Stated		Current	State &
&		Principal	Principal	Paid to	Note	LTV at	Original	Origination
Loan Group		Balance	Balance	Date	Rate	Origination	Term	Date
40091472 1		73,100.00	72,870.30	Feb-01-03	10.050%	MO - 85.00%	360	Nov-13-02
39001870 1		68,000.00	67,633.73	Jan-01-03	8.700%	IA - 80.00%	360	Oct-15-02
40129447 1		99,000.00	98,650.89	Jan-01-03	9.500%	MI - 90.00%	360	Nov-07-02
39970678 1		152,000.00	150,941.33	Feb-01-03	7.500%	CA - 80.00%	360	Oct-31-02
40214090 1		58,800.00	58,661.64	Jan-01-03	11.400%	FL - 70.00%	360	Nov-12-02
40059560 1		67,500.00	67,241.81	Mar-01-03	10.350%	OH - 75.00%	360	Oct-30-02
40254625 1		200,000.00	199,344.57	Jan-01-03	9.850%	TX - 80.00%	360	Nov-08-02
40068033 1		64,800.00	64,506.25	Dec-01-02	8.950%	IN - 80.00%	360	Nov-21-02
40804866 1		112,500.00	112,143.25	Jan-01-03	9.250%	AZ - 90.00%	360	Dec-04-02
40551632 1		127,800.00	127,196.47	Mar-01-03	8.750%	MN - 90.00%	360	Dec-02-02
41123225 1		98,100.00	97,718.12	Feb-01-03	8.250%	TN - 90.00%	360	Dec-18-02
40706558 1		78,200.00	77,778.78	Feb-01-03	8.100%	MN - 85.00%	360	Dec-06-02
39735022 2		140,600.00	139,803.95	Feb-01-03	7.850%	NJ - 95.00%	360	Oct-23-02
41026410 1		184,500.00	183,663.72	Jan-01-03	8.950%	FL - 90.00%	360	Nov-20-02
40171530 2		475,000.00	473,132.30	Jan-01-03	8.200%	NY - 95.00%	360	Dec-04-02
41129818 1		163,800.00	163,090.40	Jan-01-03	8.500%	MI - 90.00%	360	Dec-09-02
40986929 2		341,600.00	340,336.14	Jan-01-03	8.500%	TX - 80.00%	360	Dec-09-02
41275272 1		52,000.00	51,849.85	Jan-01-03	10.450%	IN - 80.00%	360	Dec-06-02
				Page 15 of 24				© COPYRIGHT 2003 Deutsche Bank
41286964 1		136,800.00	136,351.65	Mar-01-03	9.850%	OR - 80.00%	360	Dec-11-02
41331976 1		60,000.00	59,803.34	Feb-01-03	9.850%	FL - 80.00%	360	Dec-12-02
39634761 2		57,600.00	57,433.72	Mar-01-03	10.450%	SC - 90.00%	360	Dec-04-02
40059297 2		160,000.00	159,048.00	Jan-01-03	7.600%	NY - 58.18%	360	Nov-08-02
41098435 2		360,000.00	357,543.24	Feb-01-03	6.900%	NY - 80.00%	360	Nov-30-02
41332917 2		360,000.00	358,456.29	Feb-01-03	8.550%	AZ - 80.00%	360	Dec-13-02
				Page 15 of 25				© COPYRIGHT 2003 Deutsche Bank
	Ameriquest Mortgage Securities Inc. 2003-AR1
	Mortgage Pass-Through Certificates
	Prepayment Report for July 25, 2003 Distribution
	Prepayment Report for August 25, 2003 Distribution
	Prepayment Report - Voluntary Prepayments
VOLUNTARY PREPAYMENTS						GROUP 2	GROUP 1	TOTAL
	Current
	Number of Paid in Full Loans					911	2337	3248
	Number of Repurchased Loans					-	-	-
	Total Number of Loans Prepaid in Full					911	2337	3248
	Paid in Full Balance					2,~~576~~380,~~370~~226.9729	46,~~303~~831,~~502~~149.6642	69,~~879~~211,~~873~~375.6371
	Repurchased Loans Balance					-	-	-
	Curtailments Amount					153,~~933~~511.0337	187,~~449~~455.9209	3410,~~382~~966.9546
	Total Prepayment Amount					2,~~592~~383,~~304~~737.0066	46,~~321~~838,~~952~~604.5851	69,~~914~~222,~~256~~342.5817
	Cumulative
	Number of Paid in Full Loans					1728	6097	77125
	Number of Repurchased Loans					-	-	-
	Total Number of Loans Prepaid in Full					1728	6097	77125
	Paid in Full Balance					46,~~495~~875,~~557~~783.1342	1017,~~666~~497,~~226~~375.3072	1524,~~161~~373,~~783~~159.4314
	Repurchased Loans Balance					-	-	-
	Curtailments Amount					~~359~~363,~~707~~218.5289	9098,~~763~~218.7180	~~450~~461,~~471~~437.2369
	Total Prepayment Amount					47,~~855~~239,~~264~~002.6531	1017,~~756~~595,~~990~~594.0152	1524,~~612~~834,~~254~~596.6683
SPACE INTENTIONALLY LEFT BLANK
Total Prepayments by Groups (in thousands of dollars)					Total Prepayments (in thousands of dollars)
				Page 16 of 24				© COPYRIGHT 2003 Deutsche Bank
				Page 16 of 25				© COPYRIGHT 2003 Deutsche Bank
	Ameriquest Mortgage Securities Inc. 2003-AR1
	Mortgage Pass-Through Certificates
	Prepayment Report for July 25, 2003 Distribution
	Prepayment Report for August 25, 2003 Distribution
	Prepayment Report - Voluntary Prepayments
VOLUNTARY PREPAYMENT RATES						GROUP 2	GROUP 1	TOTAL
	SMM					21.1098%	12.6261%	12.7841%
	3 Months Avg SMM					1.1867%	1.0776%	1.1173%
	12 Months Avg SMM
	Avg SMM Since Cut-off					0.6584%	0.6795%	0.6692%
	CPR					2221.5130%	1727.8322%	1925.3440%
	3 Months Avg CPR					1318.2925%	1219.1221%	1218.4991%
	12 Months Avg CPR
	Avg CPR Since Cut-off					79.5868%	710.7380%	710.6845%
	PSA					~~1804~~1472.6025%	~~1391~~1837.3383%	~~1521~~1727.8250%
	3 Months Avg PSA Approximation					~~1267~~1463.7421%	~~1120~~1498.8584%	~~1166~~1487.4185%
	12 Months Avg PSA Approximation
	Avg PSA Since Cut-off Approximation					~~1013~~1141.0420%	~~988~~1225.1801%	~~995~~1199.8040%
	Group 1
	Group 2
CPR by Groups					Total CPR
PSA by Groups					Total PSA
				Page 17 of 24				© COPYRIGHT 2003 Deutsche Bank
				Page 17 of 25				© COPYRIGHT 2003 Deutsche Bank
	Ameriquest Mortgage Securities Inc. 2003-AR1
	Mortgage Pass-Through Certificates
	Prepayment Report for July 25, 2003 Distribution
	Prepayment Report for August 25, 2003 Distribution
	Prepayment Report - Voluntary Prepayments
	Group 1
	Group 2
CPR Avg since Cut-Off by Groups					Total CPR Avg since Cut-Off
PSA Avg since Cut-Off by Groups					Total PSA Avg since Cut-Off
PREPAYMENT CALCULATION METHODOLOGY
Single Monthly Mortality (SMM): (Voluntary partial and full prepayments + Repurchases)/(Beg Principal Balance - Sched Principal)
Conditional Prepayment Rate (CPR): 1-((1-SMM)^12)
PSA Standard Prepayment Model: CPR/(0.02*min(30,WAS))
Average SMM over period between nth month and mth month (AvgSMMn,m): [(1-SMMn) * (1-SMMn+1) .......(1-SMMm)]^(1/months in period n,m)
Average CPR over period between the nth month and mth month (AvgCPRn,m): 1-((1-AvgSMMn,m)^12)
Average PSA Approximation over period between the nth month and mth month: AvgCPRn,m/(0.02*Avg WASn,m))
Average WASn,m: (min(30,WASn)+min(30,WASn+1)+.......+min(30,WASm)/(number of months in the period n,m)
Weighted Average Seasoning (WAS)
Note: Prepayment rates are calculated since deal issue date and include partial and full voluntary prepayments and repurchases.
Dates correspond to distribution dates.
				Page 18 of 24				© COPYRIGHT 2003 Deutsche Bank
				Page 18 of 25				© COPYRIGHT 2003 Deutsche Bank
	Ameriquest Mortgage Securities Inc. 2003-AR1
	Mortgage Pass-Through Certificates
	Prepayment Detail Report for July 25, 2003 Distribution
	Prepayment Detail Report for August 25, 2003 Distribution
	Prepayment Detail Report - Loans Prepaid in Full During Current Distribution
SUMMARY						LOAN GROUP
Total Loan Count = 32						Loan Group 1 = Group 1 Group
Total Loan Count = 48						Loan Group 1 = Group 1 Group
Total Original Principal Balance = 6,911,560.00						Loan Group 2 = Group 2 Group
Total Original Principal Balance = 9,254,415.00						Loan Group 2 = Group 2 Group
Total Prepayment Amount = 6,879,873.63
Total Prepayment Amount = 9,211,375.71
Loan Number			Original			Current	State &	Type Prepayment
&		Loan	Principal	Prepayment	Prepayment	Note	LTV at	&	Origination
Loan Group		Status	Balance	Amount	Date	Rate	Origination	Original Term	Date
38790176 1			170,000.00	169,217.50	Jun-18-03	8.875%	CA - 69.39%	Paid Off - 360	Sep-27-02
37785904 1			160,000.00	158,978.75	Aug-06-03	8.400%	MO - 90.40%	Paid Off - 360	Aug-15-02
39144555 1			153,000.00	152,100.58	Jul-09-03	6.150%	OR - 85.00%	Paid Off - 360	Dec-03-02
38426219 1			144,000.00	142,889.85	Jul-31-03	7.450%	CA - 90.00%	Paid Off - 360	Aug-31-02
39347554 1			161,500.00	160,832.19	Jun-30-03	7.950%	MA - 95.00%	Paid Off - 360	Nov-06-02
39193933 1			195,750.00	194,328.14	Aug-01-03	7.200%	CA - 75.00%	Paid Off - 360	Sep-30-02
39370614 1			270,000.00	269,050.75	Jun-19-03	8.750%	CA - 90.00%	Paid Off - 360	Nov-15-02
39226238 1			256,500.00	254,827.92	Jul-31-03	7.750%	CA - 95.00%	Paid Off - 360	Sep-27-02
39456546 1			209,000.00	207,837.81	Jul-07-03	7.250%	CA - 95.00%	Paid Off - 360	Oct-24-02
39238860 1			126,000.00	125,540.78	Aug-05-03	10.000%	MA - 48.46%	Paid Off - 360	Oct-23-02
39565528 1			194,400.00	193,420.71	Jul-09-03	7.750%	CA - 90.00%	Paid Off - 360	Oct-24-02
39443577 1			324,000.00	322,400.10	Jul-15-03	7.850%	NY - 80.00%	Paid Off - 360	Nov-27-02
39736459 1			192,000.00	191,151.24	Jun-11-03	8.400%	CA - 80.00%	Paid Off - 360	Oct-24-02
39680970 1			144,000.00	143,036.17	Jul-22-03	7.000%	MI - 80.00%	Paid Off - 360	Oct-31-02
39885603 1			263,500.00	262,365.95	Jul-02-03	7.750%	CA - 85.00%	Paid Off - 360	Nov-30-02
39688031 1			145,000.00	144,224.93	Jul-30-03	6.650%	NY - 64.44%	Paid Off - 360	Dec-04-02
40179475 1			210,000.00	208,845.36	Jun-13-03	6.500%	CA - 60.00%	Paid Off - 360	Nov-13-02
39704531 1			64,800.00	64,513.49	Jul-31-03	8.400%	OH - 80.00%	Paid Off - 360	Nov-14-02
40203804 1			191,000.00	190,210.23	Jul-01-03	7.950%	CA - 73.46%	Paid Off - 360	Dec-06-02
39829973 1			164,650.00	163,620.78	Jul-30-03	7.350%	MD - 73.18%	Paid Off - 360	Oct-28-02
40232746 1			108,900.00	108,411.64	Jun-27-03	7.550%	MO - 90.00%	Paid Off - 360	Nov-13-02
39849484 1			174,250.00	173,570.10	Jul-23-03	9.050%	MN - 85.00%	Paid Off - 360	Nov-18-02
40265951 1			78,300.00	77,996.79	Jul-01-03	8.400%	CT - 90.00%	Paid Off - 360	Nov-27-02
39975487 1			199,750.00	198,967.20	Jul-24-03	8.990%	CO - 85.00%	Paid Off - 360	Nov-04-02
40526527 1			110,000.00	109,695.46	Jun-30-03	9.900%	IN - 59.46%	Paid Off - 360	Nov-19-02
40065328 1			81,700.00	81,438.21	Aug-01-03	9.200%	IL - 95.00%	Paid Off - 360	Dec-12-02
40567653 1			193,500.00	192,708.33	Jun-11-03	7.650%	MD - 90.00%	Paid Off - 360	Dec-03-02
40099772 1			318,750.00	317,683.26	Jul-11-03	9.750%	IL - 75.00%	Paid Off - 360	Nov-14-02
40711848 1			172,000.00	171,237.30	Jul-01-03	7.600%	CA - 81.91%	Paid Off - 360	Dec-05-02
40133878 1			235,000.00	234,094.48	Jul-23-03	8.300%	ME - 87.04%	Paid Off - 360	Dec-11-02
40741076 1			128,250.00	127,821.72	Jul-02-03	9.000%	CA - 95.00%	Paid Off - 360	Nov-26-02
40250896 1			108,000.00	107,627.00	Jul-25-03	9.600%	MO - 80.00%	Paid Off - 360	Nov-18-02
40791527 1			285,600.00	285,022.49	Jun-30-03	10.500%	IL - 85.00%	Paid Off - 360	Dec-09-02
40255044 1			297,500.00	296,113.84	Jul-15-03	7.350%	CA - 85.00%	Paid Off - 360	Dec-06-02
40803793 1			81,000.00	80,803.85	Jun-18-03	9.650%	IL - 90.00%	Paid Off - 360	Dec-02-02
40287732 1			204,000.00	203,051.47	Jul-16-03	8.150%	NH - 85.00%	Paid Off - 360	Nov-06-02
40875460 1			173,000.00	172,136.62	Jun-17-03	7.000%	RI - 82.38%	Paid Off - 360	Nov-26-02
40326258 1			54,825.00	54,670.05	Aug-01-03	10.550%	IN - 85.00%	Paid Off - 360	Nov-25-02
40921454 1			144,360.00	143,660.39	Jul-08-03	7.150%	CA - 90.00%	Paid Off - 360	Dec-06-02
40359556 1			180,500.00	179,669.15	Jul-24-03	8.200%	IL - 95.00%	Paid Off - 360	Nov-12-02
40956914 1			275,000.00	274,180.62	Jun-17-03	8.650%	CA - 84.62%	Paid Off - 360	Dec-09-02
40497604 1			287,100.00	285,817.88	Jul-16-03	8.350%	MN - 90.00%	Paid Off - 360	Nov-22-02
41004417 1			231,000.00	230,635.86	Jun-30-03	11.650%	NY - 70.00%	Paid Off - 360	Dec-13-02
40555641 1			132,300.00	131,830.08	Jul-23-03	8.700%	MI - 90.00%	Paid Off - 360	Dec-06-02
41123779 1			325,800.00	324,159.27	Jul-08-03	7.400%	IL - 90.00%	Paid Off - 360	Dec-02-02
40616708 1			216,000.00	214,878.96	Jul-29-03	7.600%	CA - 90.00%	Paid Off - 360	Nov-29-02
37542925 2			460,000.00	456,831.36	Jun-17-03	8.700%	NY - 84.40%	Paid Off - 360	Nov-06-02
40722605 1			305,000.00	303,610.14	Jul-31-03	8.250%	NY - 66.30%	Paid Off - 360	Nov-27-02
39354832 2			211,000.00	209,674.16	Jul-03-03	6.750%	CA - 84.40%	Paid Off - 360	Oct-09-02
40731127 1			185,000.00	183,981.31	Jul-31-03	7.300%	MA - 60.46%	Paid Off - 360	Nov-26-02
40469827 2			98,000.00	96,459.43	Jun-23-03	5.850%	OH - 84.48%	Paid Off - 240	Nov-26-02
40748774 1			178,500.00	177,694.73	Jul-31-03	8.300%	NY - 85.00%	Paid Off - 360	Nov-27-02
40534091 2			361,250.00	359,828.74	Jul-07-03	8.200%	CA - 85.00%	Paid Off - 360	Nov-26-02
40795254 1			171,000.00	170,643.13	Jul-31-03	11.950%	NY - 60.00%	Paid Off - 360	Nov-25-02
40536930 2			285,000.00	283,723.65	Jun-26-03	7.550%	NJ - 54.81%	Paid Off - 360	Nov-25-02
40864571 1			127,500.00	127,154.42	Aug-04-03	10.000%	NJ - 75.00%	Paid Off - 360	Dec-10-02
40700452 2			187,200.00	186,718.76	Jun-12-03	10.250%	IL - 90.00%	Paid Off - 360	Nov-30-02
40887317 1			260,000.00	258,582.35	Jul-30-03	7.350%	CA - 80.00%	Paid Off - 360	Nov-29-02
40733438 2			200,000.00	198,910.93	Jul-02-03	6.550%	CO - 60.61%	Paid Off - 360	Nov-19-02
40903726 1			235,600.00	234,412.68	Jul-28-03	7.800%	CA - 95.00%	Paid Off - 360	Dec-13-02
40843708 2			380,000.00	378,298.19	Jun-19-03	7.550%	NY - 95.00%	Paid Off - 360	Nov-19-02
40965402 1			255,000.00	253,956.14	Jul-17-03	8.000%	IL - 85.00%	Paid Off - 360	Dec-13-02
41615337 2			408,000.00	405,925.75	Jul-02-03	6.850%	MD - 80.00%	Paid Off - 360	Dec-11-02
41069832 1			95,000.00	94,611.09	Aug-04-03	8.000%	TX - 90.48%	Paid Off - 360	Dec-13-02
					Page 19 of 24				© COPYRIGHT 2003 Deutsche Bank
41113739 1			216,000.00	215,248.33	Jul-25-03	8.800%	FL - 90.00%	Paid Off - 360	Dec-02-02
41157421 1			244,000.00	243,043.79	Jul-24-03	8.990%	CA - 80.00%	Paid Off - 360	Nov-26-02
41234816 1			127,200.00	126,778.42	Aug-06-03	9.250%	MD - 80.00%	Paid Off - 360	Dec-07-02
41493487 1			127,925.00	127,506.49	Aug-04-03	9.100%	CT - 85.00%	Paid Off - 360	Dec-13-02
41519984 1			120,600.00	120,153.81	Jul-28-03	8.500%	UT - 90.00%	Paid Off - 360	Dec-12-02
39134937 2			289,765.00	288,501.18	Aug-01-03	9.150%	NJ - 85.00%	Paid Off - 360	Oct-24-02
39568449 2			409,500.00	407,633.97	Aug-07-03	8.250%	CA - 90.00%	Paid Off - 360	Nov-08-02
39768932 2			113,400.00	113,200.37	Aug-07-03	12.000%	NJ - 70.00%	Paid Off - 360	Dec-13-02
40220675 2			175,000.00	174,336.07	Aug-05-03	9.150%	IL - 67.31%	Paid Off - 360	Dec-03-02
40594160 2			228,000.00	226,781.05	Jul-28-03	7.450%	FL - 95.00%	Paid Off - 360	Dec-04-02
40597718 2			152,500.00	151,660.26	Jul-21-03	7.300%	NJ - 42.36%	Paid Off - 360	Nov-21-02
40695058 2			334,000.00	332,283.74	Jul-31-03	6.850%	TX - 80.00%	Paid Off - 360	Dec-09-02
					Page 19 of 25				© COPYRIGHT 2003 Deutsche Bank
	Ameriquest Mortgage Securities Inc. 2003-AR1
	Mortgage Pass-Through Certificates
	Realized Loss Report for July 25, 2003 Distribution
	Prepayment Detail Report for August 25, 2003 Distribution
	Prepayment Detail Report - Loans Prepaid in Full During Current Distribution
Loan Number			Original			Current	State &
&		Loan	Principal	Prepayment	Prepayment	Note	LTV at	Original	Origination
Loan Group		Status	Balance	Amount	Date	Rate	Origination	Term	Date
40737462 2			342,000.00	340,076.32	Aug-04-03	7.700%	CA - 95.00%	Paid Off - 360	Nov-14-02
40741498 2			202,500.00	201,428.08	Aug-05-03	7.500%	CA - 90.00%	Paid Off - 360	Dec-04-02
40819989 2			79,800.00	79,322.56	Jul-31-03	6.875%	FL - 70.00%	Paid Off - 360	Nov-20-02
41469578 2			65,250.00	65,002.69	Jul-17-03	8.400%	OH - 75.00%	Paid Off - 360	Dec-13-02
					Page 20 of 25				© COPYRIGHT 2003 Deutsche Bank
	Ameriquest Mortgage Securities Inc. 2003-AR1
	Mortgage Pass-Through Certificates
	Realized Loss Report for August 25, 2003 Distribution
	Realized Loss Report - Collateral
COLLATERAL REALIZED LOSSES						GROUP 2	GROUP 1	TOTAL
	Current
	Number of Loans Liquidated					-	-	-
	Collateral Realized Loss/(Gain) Amount					-	-	-
	Net Liquidation Proceeds					-	-	-
	Cumulative
	Number of Loans Liquidated					-	-	-
	Collateral Realized Loss/(Gain) Amount					-	-	-
	Net Liquidation Proceeds					-	-	-
	Note: Collateral Realized Loss Amount may include adjustments to loans liquidated in prior periods.
SPACE INTENTIONALLY LEFT BLANK
	Group 1						3 Months Moving Average
	Group 2
Collateral Loss Severity Approximation by Groups					Collateral Loss Severity Approximation
				Page 20 of 24				© COPYRIGHT 2003 Deutsche Bank
				Page 21 of 25				© COPYRIGHT 2003 Deutsche Bank
	Ameriquest Mortgage Securities Inc. 2003-AR1
	Mortgage Pass-Through Certificates
	Realized Loss Report for July 25, 2003 Distribution
	Realized Loss Report for August 25, 2003 Distribution
	Realized Loss Report - Collateral
DEFAULT SPEEDS						GROUP 2	GROUP 1	TOTAL
	MDR					0.00%	0.00%	0.00%
	3 Months Avg MDR					0.00%	0.00%	0.00%
	12 Months Avg MDR
	Avg MDR Since Cut-off					0.00%	0.00%	0.00%
	CDR					0.00%	0.00%	0.00%
	3 Months Avg CDR					0.00%	0.00%	0.00%
	12 Months Avg CDR
	Avg CDR Since Cut-off					0.00%	0.00%	0.00%
	SDA					0.00%	0.00%	0.00%
	3 Months Avg SDA Approximation					0.00%	0.00%	0.00%
	12 Months Avg SDA Approximation
	Avg SDA Since Cut-off Approximation					0.00%	0.00%	0.00%
	Loss Severity Approximation for Current Period
	3 Months Avg Loss Severity Approximation
	12 Months Avg Loss Severity Approximation
	Avg Loss Severity Approximation Since Cut-off
	Group 1
	Group 2
CDR by Groups					Total CDR
SDA by Groups					Total SDA
				Page 21 of 24				© COPYRIGHT 2003 Deutsche Bank
				Page 22 of 25				© COPYRIGHT 2003 Deutsche Bank
	Ameriquest Mortgage Securities Inc. 2003-AR1
	Mortgage Pass-Through Certificates
	Realized Loss Report for July 25, 2003 Distribution
	Realized Loss Report for August 25, 2003 Distribution
	Realized Loss Report - Collateral
	Group 1
	Group 2
CDR Avg since Cut-Off by Groups					Total CDR Avg since Cut-Off
SDA Avg since Cut-Off by Groups					Total SDA Avg since Cut-Off
COLLATERAL REALIZED LOSS CALCULATION METHODOLOGY
Monthly Default Rate (MDR): (Beg Principal Balance of Liquidated Loans)/(Total Beg Principal Balance)
Conditional Default Rate (CDR): 1-((1-MDR)^12)
SDA Standard Default Assumption: CDR/IF(WAS<61,MIN(30,WAS)0.02,MAX(0.03,MIN(30,WAS)0.02-0.0095*(WAS-60)))
Average MDR over period between nth month and mth month (AvgMDRn,m): [(1-MDRn) * (1-MDRn+1) .......(1-MDRm)]^(1/months in period n,m)
Average CDR over period between the nth month and mth month (AvgCDRn,m): 1-((1-AvgMDRn,m)^12)
Average SDA Approximation over period between the nth month and mth month:
AvgCDRn,m/IF(Avg WASn,m<61,MIN(30,Avg WASn,m)0.02,MAX(0.03,MIN(30,Avg WASn,m)0.02-0.0095*(Avg WASn,m-60)))
Average WASn,m: (WASn + WASn+1 +.......+ WASm )/(number of months in the period n,m)
Loss Severity Approximation for current period: sum(Realized Loss Amount)/sum(Beg Principal Balance of Liquidated Loans)
Average Loss Severity Approximation over period between nth month and mth month: Avg(Loss Severityn,m)
Note: Default rates are calculated since deal issue date and include realized gains and additional realized losses and gains from prior periods.
Dates correspond to distribution dates.
				Page 22 of 24				© COPYRIGHT 2003 Deutsche Bank
				Page 23 of 25				© COPYRIGHT 2003 Deutsche Bank
	Ameriquest Mortgage Securities Inc. 2003-AR1
	Mortgage Pass-Through Certificates
	Realized Loss Detail Report for July 25, 2003 Distribution
	Realized Loss Detail Report for August 25, 2003 Distribution
	Realized Loss Detail Report - Loans Liquidated During Current Distribution
SUMMARY						LOAN GROUP
Total Loan Count = 0						Loan Group 1 = Group 1 Group
Total Original Principal Balance = 0.00						Loan Group 2 = Group 2 Group
Total Prior Principal Balance = 0.00
Total Realized Loss Amount = 0.00
Total Net Liquidation Proceeds = 0.00
Note: Total Realized Loss Amount may include adjustments to loans liquidated in prior periods.
Loan Number			Original	Prior		Current	State &
&		Loan	Principal	Principal	Realized	Note	LTV at	Original	Origination
Loan Group		Status	Balance	Balance	Loss/(Gain)	Rate	Origination	Term	Date
SPACE INTENTIONALLY LEFT BLANK
					Page 23 of 24				© COPYRIGHT 2003 Deutsche Bank
					Page 24 of 25				© COPYRIGHT 2003 Deutsche Bank
	Ameriquest Mortgage Securities Inc. 2003-AR1
	Mortgage Pass-Through Certificates
	Triggers, Adj. Rate Cert. and Miscellaneous Report for July 25, 2003 Distribution
	Triggers, Adj. Rate Cert. and Miscellaneous Report for August 25, 2003 Distribution
	Triggers, Adj. Rate Cert. and Miscellaneous Report
TRIGGER EVENTS						GROUP 2	GROUP 1	TOTAL
	Trigger Event in effect							No
	Stepdown Date has occurred							No
	Balances 60+ days							89,~~448~~557,~~054~~616.6599
	Ending Balance							~~382~~373,~~598~~083,~~728~~497.7028
	Delinquency Percentage							2.2156%
	Balance of Mezzanine and C Class							52,000,078.00
	Ending Balance							~~382~~373,~~598~~083,~~728~~497.7028
	Credit Enhancement Percentage							13.5994%
ADJUSTABLE RATE CERTIFICATE INFORMATION						GROUP 2	GROUP 1	TOTAL
SPACE INTENTIONALLY LEFT BLANK
ADDITIONAL INFORMATION						GROUP 2	GROUP 1	TOTAL
	Net WAC Rate Carryover Amt: Class A-1							0.00
	Net WAC Rate Carryover Amt: Class A-2							0.00
	Net WAC Rate Carryover Amt: Class M-1							0.00
	Net WAC Rate Carryover Amt: Class M-2							0.00
	Net WAC Rate Carryover Amt: Class M-3							0.00
	Net WAC Rate Carryover Amt: Class M-4							0.00
	Net WAC Rate Carryover Amt: Class A-1 unpaid							0.00
	Libor for Current Period							1.~~035000~~100000%
	Special Servicing Fee Paid							0.00
	Current Period loan level losses							0.00
	Current Recoveries or Losses from Prior periods							0.00
	Total Current Losses							0.00
				Page 24 of 24				© COPYRIGHT 2003 Deutsche Bank
				Page 25 of 25				© COPYRIGHT 2003 Deutsche Bank

Filing Compare · AMERIQUEST MORTGAGE SEC INC ASSET BACK CERT SER 2003 AR1