2003 Audi A4 Audi A4 2003

We are 103,000+ car owners sharing real-world car information.

Join Us

2003 Audi A4 repairs by problem area

Engine (51%)

Transmission and Drivetrain (7%)

Brakes and Traction Control (3%)

Suspension and Steering (8%)

Electrical and Air Conditioning (21%)

Paint, Rust, Leaks, Rattles, and Trim (3%)

Other (7%)

Chart based on 360 repairs.
See TSBs and recalls for the 2003 Audi A4.

2003 Audi A4 repair cost distribution

$2500+ (4%)

$1000 - $2499 (13%)

$500 - $999 (18%)

$100 - $499 (33%)

< $100 (31%)

Worried about potential repair costs? An extended warranty can provide peace of mind.

Chart based on 286 repair trips. The repair cost chart excludes repairs made under warranty, do-it-yourself repairs, and repair trips that include maintenance.

2003 Audi A4

turbocharged 4-cylinder diesel manual 2WD

Audi A4 in Ireland
May 2009 - Jun 2011
Feb 2010

138880 mi

€275
Tensioner pulley which tensions auxillary belt for power steering, compressor and alternator went faulty. Front bumper and radiator had to be removed to get at the tensioner! 

Return to top

2003 Audi A4

Engine not specified

Audi A4 in California, United States
Nov 2006 - Mar 2010
Jan 2007

81000 mi

US $1300
Rear windshield sprayer not working.  Windshield front [washer] system leaked 500USD repair. 
Audi A4 in California, United States
Feb 2009 - Jun 2011
Mar 2009

62000 mi

US $1200
Timing belt replaced due to water pump leakage, and valve seal replaced due to oil leakage. 
Feb 2010

73000 mi

US $300
Repaired engine bonnet release lever 
Audi A4 in Texas, United States
Nov 2006 - Apr 2007
Dec 2006

43000 mi
Carmax told me I had engine sludge. Audi mechanic looked at oil cap, said it was bad sludge, but after two days with my car they said it was normal. Also replaced cupholder, battery, ball joint, and flushed brake fluid. Rear seat cupholder wouldn't pop out of center armrest, leaving the backseat with no cupholders. 
Audi A4 in Poland
May 2010 - Jun 2011
Sep 2010

138880 mi

$1700
camshafts got broken (2.5tdi) with automatic gearbox, that was weird 
Oct 2010

140120 mi
Left power windows, right power locks not working. Open on front right door, found water on circuit board. Dried and cleaned this with alcohol (spiritus), and windows started working, but locks still not. 

Return to top

2003 Audi A4 4dr Wagon

turbocharged 170hp 1.8L I4 6-speed shiftable CVT FWD

Audi A4 in Netherlands
Sep 2016 - Oct 2016
Oct 2016

110360 mi
CVT issue (also called multitronic). 

Return to top

2003 Audi A4 4dr Wagon

turbocharged 170hp 1.8L I4 5-speed shiftable automatic AWD

Audi A4 in California, United States
May 2010 - Mar 2011
Mar 2011

73000 mi

US $1437
Coolant leak; hoses and seals replaced; 80k service completed at same time 
Audi A4 in Washington, United States
Sep 2006 - Mar 2010
Oct 2006

43000 mi
HVAC air distribution servo motor/s hunting for position with car turned off. Automatic temperature regulation not working properly, air too warm. Air distribution not ccorrect. 
Dec 2006

46000 mi
Replaced air temperature control servo motor and air flow control servo motor. 
Audi A4 in Ontario, Canada
May 2008 - Apr 2010
Mar 2009

78120 mi

C $30
Coil pack failure, replaced with OEM part. 
Apr 2009

78740 mi

C $25
Had to replace coil pack. Second one in as many months. 
Apr 2010

86180 mi
coolant temp sensor 

Return to top

2003 Audi A4 4dr Wagon

turbocharged 170hp 1.8L I4 5-speed manual AWD

Audi A4 in New York, United States
Sep 2008 - Jun 2011
Jan 2010

92000 mi

US $200
One spark plug coil failed Exhaust pipe rust hole repaired by replacing pipe 
Aug 2010

96000 mi

US $400
Front wheel bearing was noisy. It was replaced with a new one. Original exhaust hanger was rusted off, new one welded on 
Audi A4 in Michigan, United States
Dec 2009 - Jul 2015
Dec 2009

71010 mi

US $260
Replace radiator Replace driver side rear diff seal Replace center diff output seal 
Jan 2010

73000 mi

US $100
Driver side HID ballast replaced 
Sep 2011

104000 mi

US $319
Replace all front suspension members. 
Oct 2011

104800 mi

US $18
Lower coolant temp sensor failed. 
May 2012

115000 mi

US $175
Front strut replacement 
Aug 2012

118300 mi

US $100
Replace all sway bar end links. 
Dec 2012

124000 mi

US $500
Turbocharger replaced. 
Mar 2013

128000 mi
Replace all 4 ignition coils. Replace main coolant temp sensor. 
Apr 2013

128700 mi
Replace primary O2 sensor. Driver rear door wiring broken. 
Jun 2013

132000 mi

US $300
Replace exhaust. 
Oct 2013

135700 mi

US $150
Replace front lower control arms, bushing shot. 
Apr 2014

143000 mi

US $5
Replace cracked dipstick tube. Replace rear license plate mount. Clip nuts rusted, making it impossible to remove the license plate. Audi of course doesn't just sell the clip nuts and removal destroys the license plate mount. Replace j plug and turbo coolant lines. 
May 2014

143300 mi

US $28
Replace cam cover and intake cam seal. 
Sep 2014

144000 mi

US $2000
Replace cam seal Replace VVT gasket Replace timing belt/water pump/tensioner Replace thermostat Replace passenger axle and seal Replace clutch 
Jul 2015

152000 mi
Car burned up. Probably from a leak in the turbo oil feed. 
Audi A4 in California, United States
Jul 2014 - Aug 2015
Aug 2014

104200 mi

US $2000
Transmission syncros/planetary gear shattered. 5-sp manual. Replaced clutch, clutch slave, transmission with same model from 2002 car with 124k miles 
Aug 2015

108000 mi

US $500
Alarm backup battery leaked and damaged alarm. Need to replace. No alarm beeps or warnings. 
Audi A4 in Ohio, United States
Jun 2013 - Nov 2017
Jul 2013

82300 mi

US $350
Bad ABS controller module, removed and sent for repair. 
Jan 2015 Parking brake freezing 
Jun 2017

100000 mi
Got a new battery and in-cabin filter 
Oct 2017

100000 mi

US $500
replaced front pads and rotors, flushed fluid 
Audi A4 in British Columbia, Canada
Feb 2016 - Jun 2022
Oct 2016

143100 mi

C $40
Progressively worsening leaking "J-plug" on the thermostat housing. Self replaced, was a PITA. Engine block breather tube deteriorated, then split and torn. Replaced this one part and successfully connected into remaining original breather system w/o the other tubing/ valve crumbling and breaking Part cost $45. 
Jun 2017

141360 mi

C $120
Vacuum line had small leak causing rough idle even though drivability and power were fine during acceleration and at speed. 
Audi A4 in Ontario, Canada
Jul 2014 - Jun 2015
Sep 2014

115320 mi

C $205
Flex pipe rotted out, was replaced 
Dec 2014

121520 mi

C $25
Cylinder 3 misfire. Coil pack replaced 
Feb 2015

125860 mi

C $70
Diverter valve malfunctioned; replaced but caused turbo to leak coolant into the oil. Will need to be replaced at a later date. 
Apr 2015

128320 mi

C $630
Motor mounts had failed and were leaking. Mounts replaced. 
May 2015

131440 mi
Windshield wiper transmission seized. 
Jun 2015

131440 mi
Passenger side window regulator had gone bad. Front and rear control arm bushings had worn out. 
Audi A4 in California, United States
Feb 2007 - Jul 2012
Apr 2011

120000 mi
All 4 coil packs replaced. 
Mar 2012

129000 mi

US $395
Rear coolant flange needed replacement. 
Jul 2012

131000 mi

US $650
Cylinder head and valves failed, small hairline cracks on 2nd cylinder. 
Audi A4 in Ontario, Canada
Feb 2009 - Dec 2011
Sep 2011

115320 mi

C $500
CV boot ripped - replaced whole shaft rt.side Front brakes done - over 60000 on that set 

Return to top

2003 Audi A4 4dr Wagon

220-horsepower 3.0L V6 6-speed manual AWD

Audi A4 in Texas, United States
Aug 2009 - Mar 2010
Sep 2009

77000 mi

US $85
Air conditioner wasn't cooling properly. Shop recharged and tested system, and it is now cooling properly. 
Nov 2009

77900 mi
Water leak from engine compartment into driver's side footwell. 

Return to top

2003 Audi A4 4dr Wagon

Audi A4 in New Zealand
Dec 2017 - Mar 2019
May 2018

136400 mi

$800
Require new fuel pump 

Return to top

2003 Audi A4 4dr Sedan

turbocharged 170hp 1.8L I4 6-speed shiftable CVT FWD

Audi A4 in South Carolina, United States
Jul 2009 - Mar 2010
Aug 2009

80000 mi

US $600
Valve cover gasket was bad and leaking thus ruining 1 or more coilpacks 
Audi A4 in Virginia, United States
Jul 2013 - Apr 2016
Jul 2015

138700 mi
car wouldn't start but battery was new. needed new starter solenoid. 
Audi A4 in California, United States
Jul 2010 - May 2011
May 2011

74000 mi

US $400
makes sounds when turning 
Audi A4 in California, United States
Jul 2009 - Mar 2010
Aug 2009

63000 mi

US $6100
I drove off the used car lot and five miles down the road the light came on. Coolant waring light came on and overheating. Replaced the water pump and timing belt. (Then we got the car back and the head gasket was blown and that's still not fixed.) the car has a blown head gasket and a cracked head. 
Sep 2009

64000 mi

US $756
 
Audi A4 in Australian Capital Territory, Australia
Jun 2010 - Jun 2011
Jul 2010

61380 mi
The rear tailights are common problem with this car. Muck builds up causing the light bulbs to short out.  

Return to top

2003 Audi A4 4dr Sedan

turbocharged 170hp 1.8L I4 5-speed shiftable automatic AWD

Audi A4 in Michigan, United States
May 2013 - Oct 2013
Jul 2013

114000 mi

US $350
Cam shaft positioning sensor replaced Replaced cam shaft positioning sensor. Prevents occasional stalls when car is cruising or decelerating and can't accurately sense the speed. 
Sep 2013

115000 mi

US $400
Wiper blade transmission assembly was corroded, and wouldn't move. Shop replaced the part and broke windshield in process. Replaced windshield no charge 
Oct 2013

115000 mi

US $1300
Independent shop couldn't read codes, dealer could. Independent shop replaced ABS rear left sensor, ABS, traction control light still on. Dealer recommended replace ABS control module (900), said sensor was not problem. 
Audi A4 in Indiana, United States
Jul 2013 - Jul 2014
Aug 2013

52000 mi

US $80
MIL light P0171 code. Determined that a check valve was cracked causing a vacuum/boost leak. removed and replaced and cleared MIL 
Jan 2014

54000 mi

US $100
Car not heating up. replaced thermostat 
Jul 2014

60000 mi

US $30
Misfire cylinder 1. Replaced coil pack 
Audi A4 in Minnesota, United States
Jan 2005 - Mar 2010
Jul 2005

39000 mi
radio antenna amp replacement 
May 2006

44000 mi
wrong turn signal turning on then switching to correct signal after a random period of time, usually around 10 seconds 
Jul 2007

52000 mi

US $45
left rear wheel well liner loose, new liner installed 
Feb 2008

56000 mi

US $8500
oil pressure light on. engine replacement necessary due to oil sludge. 
Mar 2008

56500 mi
wiring harness to starter failed, engine would not start. 
May 2008

58000 mi
coil pack went bad causing engine to misfire. 
Feb 2009

75000 mi

US $35
Oil dipstick tube leaving residue inside, dripping into oil. 
Audi A4 in Pennsylvania, United States
Feb 2011 - Mar 2011
Mar 2011

63800 mi

US $912
coolant leaking replaced a few clips, conduits and a coolant flange  replaced comfort control module part: $200 labor: $300 coolant leaking replaced a few clips, conduits and a coolant flange replaced comfort control module part: $200 labor: $300 
Audi A4 in Utah, United States
Jan 2011 - Jun 2014
Apr 2011

120000 mi

US $250
water pump failed and leak all antifreeze on the road. Had to keep filling with h20 to get it home. Happened close to home. Did the serpintine belt and timing belt with tensioner too. 
May 2011

122200 mi

US $34
when I replaced the water pump accidentally let out the freon when I removed a/c cooler radiator. Put the 1st charge in with oil before rest of freon. system was sealed. 
Sep 2011

133000 mi

US $40
purchased part on Ebay and will repair it shortly. It is the alarm and module located in the trunks. 
Dec 2012

165000 mi

US $4750
Spark plug wires shorting out and warn out. 
Jun 2013

178000 mi

US $30
Replacing thermostat 
Jun 2014

198000 mi
Timing belt broke 
Audi A4 in Ontario, Canada
Feb 2008 - Jun 2011
Mar 2008

67580 mi

C $850
Replace camshaft tensioner gasket & valve cover. Replace secondary injection flange. Replace broken left side fog light assembly. Replace left front headlight washer pump. Repair homelink (garage door opener) module. 
Sep 2008

68820 mi
Right rear running light replaced.  
Dec 2008

71300 mi

C $150
Oil leak tracked to valve cover. Could have been because of the extreme cold that day (-35C). 
Mar 2009

74400 mi

C $400
Dealer replaced valve cover gasket. Water pump impeller blade was broken and replaced by shop. Timing belt replaced. Front right differential gasket dried out and leaked oil ... replaced by shop mechanic 
Jul 2009

81840 mi

C $450
Right rear differential gasket replaced 
Mar 2011

87420 mi

C $600
A/C recharged and  front signal light lamp replaced. 
Apr 2011

89280 mi

C $750
Wheel bearing replaced 
Audi A4 in Georgia, United States
Nov 2008 - Mar 2010
Dec 2008

119000 mi

US $1400
Thermostat & Heater Core Replaced. 
Audi A4 in Colorado, United States
- Feb 2010
Feb 2010

19000 mi
Drivers Side tail light burned out. 
Audi A4 in Texas, United States
Jan 2006 - Mar 2010
Jul 2006

28000 mi

US $19000
36000 miles took to dealer for leaking Valve cover gasket and they said a Motor Mount needed to be replaced also. Covered under warranty 
Mar 2007

36000 mi
Replaced radio due to lines in the display, Covered by Dealer under warranty 
Jan 2008

51000 mi

US $240
DIY change Coil Packs, One way valve and spark plugs. 
Audi A4 in Massachusetts, United States
Apr 2016 - Apr 2018
Sep 2016

68000 mi

US $1100
Replaced the entire exhaust system. 
Audi A4 in British Columbia, Canada
Jul 2015 - Jan 2018
Jul 2015

99200 mi

C $600
Fitted third heater core to the car Leaking trans fluid.Trans pinion output seal leaking.Pinion and output shaft seals replaced. 
Feb 2016

99700 mi

C $400
Turbo boost low. New Dump valve fitted. Update April 2017: didn't fix, turbo boost issue still present but not a big problem- drives ok. 
Oct 2016

105900 mi

C $170
Failed injector, dealer wanted to replace all 4 and all 4 plugs. Had car towed home and repaired myslef for $170. Flexpipe broken Repaired injectors myself. 
Jan 2017

109100 mi

C $270
Radiator leaking at seals (plastic to metal on passenger side) 
Jan 2018

130820 mi

C $30
HID bulb flickering 

Return to top

2003 Audi A4 4dr Sedan

turbocharged 170hp 1.8L I4 5-speed manual FWD

Audi A4 in Maine, United States
Nov 2006 - Jul 2009
May 2009

61000 mi

US $500
Flange connecting evaporator to radiator....close to this anyhow. At 7 years old and 61,000 miles it will also need a new clutch soon we were told. Sounds normal for the age and mileage. 
Audi A4 in Illinois, United States
Apr 2003 - Mar 2010
Jun 2003

7500 mi
Sunroof operating on it's own, switch replaced under warranty. 
Jul 2003

8000 mi
Window switch cluster in drivers door not responding. Replaced under warranty. 
May 2005

35000 mi
Drivers side front wheel assembly making a clicking noise, loud enough to hear a block away. Dealer was "unable to reproduce symptom". 
Sep 2005

40000 mi
Passengers side xenon light severely flickering. Dealer service department was "unable to reproduce symptom". 
Dec 2005

45000 mi
ECU failure. Vehicle was still drivable, but the CEL was not able to be cleared. Replaced under warranty. 
Mar 2007

65000 mi

US $300
Fuel pump failed, repaired myself 
May 2007

67000 mi

US $220
Radiator leaking, replaced, did the repair myself 
Audi A4 in Connecticut, United States
Aug 2012 - Sep 2014
Jul 2014

157300 mi

US $250
Fuel pump started to make a loud whining sound during vehicle operation and caused issues when attempting to start the car. Replaced with an OEM fuel pump. 
Aug 2014

157600 mi

US $900
Original clutch began to slip. Replaced with new, aftermarket clutch with a higher torque rating. Original motor and transmission mounts replaced. 
Audi A4 in Texas, United States
Oct 2006 - Mar 2010
Nov 2006

50000 mi
Misfire when cold 
Feb 2007

52000 mi
Misfire at startup 
Audi A4 in Alabama, United States
May 2012 - Oct 2012
Oct 2012

156000 mi

US $2000
valve cover gasket cracked due to the hose providing the coolant and water breaking off got water and oil into the spark plugs 

Return to top

2003 Audi A4 4dr Sedan

turbocharged 170hp 1.8L I4 5-speed manual AWD

Audi A4 in North Carolina, United States
Apr 2009 - Jul 2010
Nov 2009

70000 mi

US $275
Ignition Coils #1 and #2 went bad causing engine light to come on. This caused the car to shudder and was advised not to be driven and was towed to a auto shop recommended by a friend who is good at import euro cars. THERE IS A Campaign NOW. 
Mar 2010

72000 mi

US $250
The rear driver side window regulator broke.  
Apr 2010

72000 mi

US $250
The rear passenger side window regulator broke. Currently waiting to see if the front regulators break. 
Audi A4 in California, United States
May 2014 - Jun 2014
Jun 2014

116000 mi

US $600
Cracked pcv valve, and several other vaccuum valves in the engine area. 
Audi A4 in Wisconsin, United States
Nov 2008 - Mar 2010
Dec 2008

65000 mi

US $90
Windshield washer pump had to be replaced, because it was not functioning and lead to loss of fluid 
Audi A4 in Washington, United States
Oct 2008 - Apr 2011
Jul 2008

52000 mi

US $400
replaced coolant flange at rear of engine block - leaking. 
Nov 2009

60000 mi

US $570
thermostat failed, replaced. replaced defective thermostat. 
Aug 2010

67000 mi

US $350
Brake fluid reservoir leaking at cap. Replaced cap and reservoir; flushed system. 
Audi A4 in Florida, United States
May 2012 - Jul 2012
Jun 2012

129000 mi

US $600
Oil pressure light came on, pickup tube in oil pan was clogged, replace tube. Also replaced engine mount. 
Audi A4 in California, United States
May 2009 - Aug 2018
Jun 2009

90000 mi

US $1200
MIL was on. Thought problem was coil pack. Mechanic found cause of MIL to be rotten crankhouse vent hose, not coil pack. Had item replaced, slight valve cover leak noticed as well. 
Nov 2011

117000 mi
CEL came on, replaced the temperature sensor. 
Feb 2013

126200 mi

US $558
replaced ugly looking coolant and coolant tank. was told by tech that previous person might have added the wrong coolant for top off. tech advised another coolant flush would be ideal to flush out old/bad coolant. 
Jun 2013

127000 mi

US $180
rear left window regulator broke and was replaced with OEM part supplied by owner 
Jul 2013

127300 mi
oil level sensor light came up. replaced sensor. 
Aug 2015

140000 mi

US $250
grounding wires for license plate light went faulty 
Jun 2016

144000 mi

US $148
replaced mass air flow sensor 
Apr 2017

155000 mi

US $1798
ECU tune for big turbo. New injectors, battery, and spark plugs. Replaced bad 3-way valve & jet pump. stock turbo went bad, replaced with big turbo.  new coolant and expansion tank reservoir. 
May 2018

160000 mi

US $2000
Replaced bad boost pressure sensor 
Aug 2018

163919 mi

US $2500
chipped 1st gear, replace with used transmission clutch was slipping, replaced with upgraded clutch & flywheel kit coolant leak, replaced coolant flange from a previous job at a different shop replaced mass air flow housing replaced hood latch sensor and hood strut 
Audi A4 in Connecticut, United States
Mar 2015 - Jul 2018
Jun 2015

114000 mi

US $100
Failure of the glove box door hinges 
Sep 2015

118000 mi

US $100
Replaced switch 
Apr 2016

124500 mi

US $1250
CEL 2181 cooling out of range. Replaced thermostat and manifold. Alternator bearings were getting noisy. Alternator removed to replace thermostat, so got a new one. Serpentine belt and tensioner replaced 
Sep 2016

129000 mi

US $850
Replace RF wheel bearing Replace flex pipe in exhaust 
Jun 2017

135000 mi

US $500
Small coolant leak traced to famous coolant flange Windshield washers had low pressure Rear seat backs not locking in place 
Mar 2018

149000 mi

US $2500
Brake pads and rotors 
Audi A4 in Illinois, United States
Mar 2008 - Mar 2012
Jan 2008

41000 mi

US $400
headlight leveling system failed 
Jul 2008

45000 mi

US $300
coolant leak from rear of engine 
Aug 2008

45250 mi

US $200
coil failed 
Jan 2009

45250 mi

US $4000
AWD system failed causing poor handling 
Apr 2011

83800 mi
auto leveling lights failed coil failed 
Oct 2011

90500 mi

US $600
Plastic check valve failed causing a leak 
Audi A4 in West Virginia, United States
Jun 2016 - Aug 2017
Oct 2016

121800 mi

US $180
Exhaust separation. Stainless steel flex pipe was used to replace the separated section. 
Mar 2017

131000 mi

US $700
Front driver wheel bearing replacement and 4 wheel alignment 
Audi A4 in Ontario, Canada
Jan 2009 - Mar 2010
Jan 2009

89900 mi

C $100
Replaced first coil pack (Failure) 
Feb 2009

89900 mi

C $1200
Water pump replacement. 
Audi A4 in Alberta, Canada
Apr 2015 - Oct 2015
Oct 2015

94860 mi

C $60
Wiring between chases and door wore out.spliced and replaced. 
Audi A4 in Wisconsin, United States
Sep 2007 - Jul 2014
Mar 2007

43000 mi

US $100
ashtray mechanism failure 
Apr 2007

44000 mi

US $100
valve cover gasket leak, repaired. 
Aug 2007

48000 mi

US $50
driver main window switch assembly failure 
Sep 2007

49000 mi

US $2000
clutch failure 
Oct 2007

50000 mi

US $200
cracked radiator seam 
Dec 2008

62000 mi

US $60
Typical thermostat failure. replacing part takes 2-3 hours. 
Jan 2009

62000 mi

US $300
Car unable to start, no diagnosis so far. 
Mar 2009

63000 mi
Low oil pressure light, checked oil pick up tube inside oil pan and found nothing. Cleaned oil tube and performed oil change, also cleaned oil pressure switch contact. Light did not return. 
Feb 2013

99800 mi

US $150
Replaced mass air flow sensor 
Apr 2013

100800 mi

US $400
Broken driver side inner CV boot, joint failing. Replaced both front axles as preventative. 
Jun 2013

104000 mi

US $20
Suction jet pump failed, replaced unit 
Dec 2013

109000 mi

US $10
Replaced crank position sensor 
Jun 2014

115000 mi

US $200
Driver door wiring harness 
Audi A4 in New Hampshire, United States
Aug 2009 - Apr 2012
Jul 2011

94700 mi

US $900
Bearings were going. Needed to be replaced. Normal wear and tear 
Audi A4 in Iowa, United States
Dec 2011 - Jan 2012
Jan 2012

US $1000
Misfiring Cylinder Ignition Coils Oil in Cylinders 
Audi A4 in Pennsylvania, United States
Sep 2010 - Apr 2017
Apr 2014

76000 mi

US $1200
There was a leak from the steering column. I have had this problem for awhile. I was told I need a new rack and pinion. 
Jan 2016

82000 mi

US $650
Coolant light kept coming on. Found a leak in one or two hoses going into coolant system and worn ring. Will give move details when I pick up car tomorrow. 
Apr 2017

90000 mi

US $1266
Removed and replaced timing belt, timing components and water pump. Drained engine oil. and removed and replaced engine air filter. Checked fluids. Inflated and adjusted tire pressure. Removed and replaced engine oil level module; 
Audi A4 in Connecticut, United States
May 2011 - Jul 2011
Jul 2011

75000 mi
Sold with oil leak in engine near timing belt area. 
Audi A4 in Massachusetts, United States
May 2010 - Jun 2011
Jan 2010

75000 mi

US $675
valve cover gasket worn, had it replaced coolant shooting out from rear of engine. Replaced Rear engine flange. 
Jul 2010

85000 mi

US $500
fuel filter clogged, resulting in a burnt pump. Replaced fuel filter as well. 

Return to top

2003 Audi A4 4dr Sedan

220-horsepower 3.0L V6 6-speed manual AWD

Audi A4 in Pennsylvania, United States
Mar 2014 - Apr 2018
Mar 2014

116000 mi

US $650
Clutch & Flywheel needed replacing. Dual Mass Flywheel failed and was causing drivetrain vibration 
Jul 2014

124000 mi

US $700
replaced all four shocks with Koni Yellow Sports & replaced front control arms. 
Nov 2015

135000 mi

US $120
Coil pack replacement 
Oct 2017

147500 mi
Intake actuator drive unit developed internal vacuum leak. I plugged a vacuum like associated with the leak. Now only 1/2 of the actuator draws vacuum. Not a perfect fix, but its getting the job done. 
Apr 2018

150000 mi

US $75
Replaced upstream oxygen sensor on the drivers side 
Audi A4 in New York, United States
Jun 2014 - Jan 2018
Oct 2015

140300 mi

US $400
Replace axle. Torn cv joint 
Aug 2016

150000 mi
worn rubber hoses 
Audi A4 in Nevada, United States
May 2008 - Jun 2018
Nov 2008

90000 mi

US $50
Coolant temp sensor intermittent failure. Mirrors move when car unlocked with remote. Headlight switch backlight led inorperative. Center differential output shaft seal leaking (fourth time this year). coolant expansion tank replaced because it was leaking. 
Feb 2010

122400 mi

US $700
replaced catalytic coverter 
May 2010

127000 mi

US $250
replaced front upper control arms 
Jun 2010

131000 mi

US $10
power steering pump noisy, flushed and refilled power steering fluid. no more noise 
Jan 2011

140000 mi

US $1900
a/c compressor seized. compressor and condenser replaced 
Apr 2012

170800 mi

US $600
a/c compressor replaced front wheel bearing replaced 
Mar 2014

204000 mi

US $15
clutch pedal switch replaced 
Dec 2014

209000 mi

US $250
front axle cv boot leaking. replaced axle 
Feb 2015

210400 mi

US $140
replaced battery 
Sep 2016

236000 mi

US $20
rear window regulator broke, bought plastic parts and replaced. 
Nov 2016

237000 mi

US $7
coolant temp sensor gasket failed. 
Jan 2017

215300 mi

US $80
replaced ballast on driver's side HID headlight. 
Apr 2017

246605 mi

US $230
replaced upper and lower control arms 
Dec 2017

262000 mi

US $7
rear window regulator broke. replaced regulator 
Jan 2018

263000 mi

US $120
front axle boots replaced, one had failed wheel bearing replaced 
Audi A4 in Michigan, United States
May 2009 - Jan 2016
Apr 2011

88000 mi

US $2500
Pcv valve froze. Blew out seals. oil leaks everywhere.new pcv valve timing belt and seals. 
Jan 2014

125000 mi

US $50
Windshield wiper arm broke, brittle plastic broke in sub zero cold, dealer only part, because of the weather the car was not usable for the weekend 
Jan 2016

121000 mi

US $50
Exhaust connector rusted thru 
Audi A4 in Pennsylvania, United States
- Feb 2009
Oct 2007

51739 mi

US $178
Repair clutch pedal switch 
Nov 2007

55619 mi

US $25
Replace right rear tail light 
Jan 2008

59275 mi

US $29
Replace interior light under right front seat 
Feb 2008

60668 mi

US $29
Replace left rear tail light bulbs 
Aug 2008

70899 mi

US $1351
Replace all coil packs, evap system purge valve Replace front brake pads and rotors Replace driver window switch module 
Jan 2009

80328 mi

US $43
Replace right front turn signal 
Feb 2009

82766 mi

US $280
Repair license plate bulb assembly 
Audi A4 in Wisconsin, United States
- Jun 2008
Jun 2008

75000 mi
Oil pressure sending switch. 
Audi A4 in Georgia, United States
Feb 2008 - Sep 2011
Aug 2008

147000 mi

US $110
Replaced noisy accessory belt tensioner. Replaced belt while I was in there. Noise is gone. 
Nov 2008

153000 mi

US $35
It was just a cracked expansion tank that was replaced.  
Apr 2009

157000 mi

US $200
Pre Cat O2 sensor on passengers side had short. Replaced both sensors on B1 Replaced coolant temp sensor to clear random misfires only noticeable with diagnostic monitor. This was a long term problem that was fixed by random maintenance. 
Oct 2009

165000 mi

US $110
Replaced pre and post O2 sensors on Bank2.  Replaced check valve and broken vac line as well. 
May 2011

188000 mi

US $500
Replaced bad upper control arms and sway bar links. Bought kit to replace all because it was cheaper. 
Jul 2011

189000 mi

US $100
it was just the drivers side cv boot. replaced the whole axle. 
Audi A4 in Michigan, United States
Apr 2014 - Apr 2018
Apr 2016

131580 mi

US $516
Replaced front and rear shocks; aligned vehicle Replaced output shaft seal (rear) and drive axle seal (rear; transmission fluid replaced accessory belt tensioner and serpentine belt Right front wheel bearing replaced after a noise developed soon after previous repair trip. 
Aug 2017

148000 mi

US $1200
A/C pump froze up and destroyed serpentine belt and one pulley. Together they cost about $1100 plus a standard oil change. 
Mar 2018

152000 mi

US $500
Replaced coil packs due to CEL codes 
Audi A4 in Pennsylvania, United States
Dec 2010 - Dec 2016
Dec 2010

132000 mi

US $510
Change OEM silencer (Middle mufflers) 
Aug 2012

147900 mi

US $1500
Changing the cam seal of the right blank 
Nov 2014

161300 mi

US $230
Brake switch; 
Audi A4 in California, United States
Apr 2013 - May 2013
May 2013

50000 mi

US $900
rack and pinion broke 
Audi A4 in South Carolina, United States
May 2011 - Feb 2017
Apr 2014

125800 mi

US $1500
Freeze Plug on the waterpump began to leak. Waterpump was still good, with only 40K miles on the pump. Water pump had to be replaced to stop the leak. $1500 repair b/c behind the timing cover. 
Mar 2015

142000 mi

US $500
coolant leak 
Oct 2015

155500 mi

US $175
ABS system failure, linked to speedometer. CHEAPABS.COM will make the repair for $150, but must remove the module (2 hours work). 
Dec 2015

158000 mi

US $500
Driver window's motor failed for the 2nd time. Very expensive each time. 
Aug 2016

173000 mi
2nd repair of pipe on rear of engine 18 months ago. Warrantied, otherwise $700 cost. 
Feb 2017

178000 mi
Tie rods worn out. 

Return to top

2003 Audi A4 4dr Sedan

220-horsepower 3.0L V6 5-speed shiftable automatic AWD

Audi A4 in Colorado, United States
Jan 2010 - Jan 2013
Sep 2010

101000 mi

US $1
Washer pump went out. Replaced with new part bought off ebay for $12. Problem fixed. 
May 2011

106000 mi
Ignition Coils replaced under warranty. 
Audi A4 in Arkansas, United States
Jul 2012 - Jan 2016
Aug 2012

110800 mi

US $200
I have the 3.0 V-6. Ignition coils were replaced Dec 2010 with new, improved design under recall. One of the new ignition coils briefly failed (set code). Replaced it. 
Oct 2013

125500 mi
Ck engine light on intermittently. Code diagnosis indicates one catalytic converter needs to be replaced. Discussed with several mechanics and decided not to replace. No drivability issues and likely will not impact operation for a long time if ever. 
May 2014

134300 mi

US $1150
Replaced water pump 
Oct 2014

140300 mi

US $170
Replaced faulty crank position sensor 
Apr 2015

145500 mi

US $200
Replaced one faulty ignition coil. 
Aug 2015

150300 mi

US $700
Engine cooling module replaced. Fault prevented the electrically driven engine cooling fan from turning on. 
Audi A4 in Connecticut, United States
- May 2008
Feb 2008

62000 mi

US $2800
CAT converter 
Mar 2008

63000 mi

US $400
Driver's window (regulator) 
May 2008

68000 mi

US $1200
Fuel pump ... died in the fast lane 
Audi A4 in Ontario, Canada
Sep 2015 - Sep 2018
Dec 2015

171120 mi

C $35
Leaking windshield washer hose 
Mar 2017

208320 mi

C $2000
Timing belt, rollers water pump Valve cover gaskets replaced Replaced flex joints in exhaust new front brakes and lines 
Jan 2018

212040 mi

C $350
Gas smell in cabin, replaced purge valve 
Audi A4 in Utah, United States
Jan 2007 - Jan 2016
Jul 2007

43878 mi

US $850
replace failing power steering pump 
Aug 2008

44765 mi
trunk release switch is broken. not repaired yet 
Jan 2009

53465 mi

US $800
replace two oxygen sensors 
Feb 2009

54547 mi

US $250
replace two crankcase breather tubes that had cracked 
Mar 2010

62830 mi

US $363
windshield wiper transmission replaced replace windshield wiper transmission 
Aug 2012

86600 mi

US $1250
Replaced glovebox hinge. 
Dec 2015

108000 mi

US $250
Yellow oil sensor display on instrument cluster. Replaced oil pressure sensor. 
Audi A4 in Ontario, Canada
Jun 2010 - Mar 2011
Oct 2010

94000 mi

C $100
trans. left hand output seal leaking. seal replaced and diff. fluid topped up. 
Feb 2011

99200 mi

C $412
Front crankcase oil seal popped out of housing, massive oil leak. 
Audi A4 in Puerto Rico
Jan 2004 - May 2012
Jan 2004

22000 mi

US $500
front windshield 
Jan 2005

32000 mi

US $500
front windshield 
Jan 2008

63000 mi

US $700
steering pump 
Jun 2008

65000 mi

US $200
drivers side window button 
Oct 2008

68000 mi

US $200
windshield wiper repair 
Jan 2009

71000 mi

US $1200
timing belt and steering pump 
Feb 2009

71000 mi

US $300
motor for windshield wipers 
Mar 2009

71000 mi

US $200
hood latch release 
Mar 2011

84000 mi

US $1700
replaced steering rack that was leaking 
Aug 2011

66000 mi

US $350
Exhaust system was making a loud noise. Took it to local mechanic who recommended a Meineke shop who would weld in a new piece. both sides of the car had to be done. 
Audi A4 in Michigan, United States
Jun 2010 - Jun 2011
Jul 2010

80000 mi

US $800
AC compressor has failed for the fourth time in 4000 mi. First time it was the bolts that backed out, caught the pulley and destroyed the comp. Second time, internal modulator failed and third time the clutch was smoked. 

Return to top

2003 Audi A4 4dr Sedan

Audi A4 in Tasmania, Australia
Nov 2021 - Jul 2022
Jan 2022

67580 mi

A $2500
Replaced all known parts that fault after 100000kms 

Return to top

2003 Audi A4 4-door

turbocharged 4-cylinder diesel manual AWD

Audi A4 in Ireland
Apr 2007 - Jul 2017
Jan 2008

96100 mi

€1277
Leak around the pollen filter. Water leaked in on top of ECU and there were multiple electrical problems due to then. Leak found and repaired, ECU replaced. Delay in supply of replacement ECU. 
Jan 2011

176080 mi

€435
Front driver's side wheel bearing replaced. 
Jul 2014

276600 mi

€150
Passenger side track rod end worn after 445,000 KM was replaced 
Sep 2014

280240 mi

€300
Intercooler had a crack, needed to be replaced. 
Jul 2015

295400 mi
After 475K replaced bushings, rear shocks and springs. 
Mar 2016

314340 mi

€100
Rear wiper motor needed to be replaced 
Jun 2016

318680 mi

€100
The syphon tube where the dipstick goes cracked and had to be replaced. Coolant pipe perished and cracked 
Sep 2016

324260 mi
Intercooler replaced after crack appeared. 
Dec 2016

328600 mi

€500
Replaced 3 x calipers which were seized. 

Return to top

2003 Audi A4 2dr Convertible

turbocharged 170hp 1.8L I4 6-speed shiftable CVT FWD

Audi A4 in Colorado, United States
Dec 2013 - Dec 2014
Dec 2013

77000 mi

US $25
Replace temp sensor because readout was intermittent 
Audi A4 in Texas, United States
Mar 2010 - Jun 2018
Mar 2014

49000 mi

US $900
Leaky gasket 
Jul 2017

60000 mi

US $389
Oxygen sensor faulty, Replaced. 

Return to top

2003 Audi A4 2dr Convertible

turbocharged 170hp 1.8L I4 5-speed shiftable automatic AWD

Audi A4 in California, United States
May 2016 - Oct 2016
Oct 2016

77000 mi

US $500
Electric convertible top stopped working.mechanic friend is attempting to diagnose the problem 

Return to top

2003 Audi A4 2dr Convertible

220-horsepower 3.0L V6 6-speed shiftable CVT FWD

Audi A4 in Arkansas, United States
- Feb 2009
Feb 2009

83300 mi

US $202
Coil #2 replaced 
Audi A4 in Alabama, United States
Feb 2009 - Mar 2010
Mar 2009

49000 mi

US $1700
Check engine light on. Car 'spluttering' at idle. New Cam Shaft seals identified as problem area. 
Audi A4 in Nebraska, United States
Apr 2010 - Mar 2012
May 2010

44000 mi

US $14500
Replace the coil packs, oil change, and replace 4 tires. 
Audi A4 in Florida, United States
Aug 2013 - Sep 2013
Aug 2013

45000 mi

US $2200
Replaced ecm 
Audi A4 in California, United States
May 2015 - Jun 2018
Jun 2015

68000 mi

US $23
Sensor detected:Convertible top not secured despite top being closed. This fault caused air conditioner to turn off. Not fun when air temp over 100 degrees. 
Nov 2016

81900 mi

US $600
Passenger window switch needed replacement. Rear window regulator was replaced as window refused to close at halfway point. 
Mar 2017

84000 mi

US $140
Window washer unit inop and not holding washer fluid. Cause was wiring short. 
Mar 2018

91000 mi
Passenger Seatbelt locks up too soon. 

Return to top

2002.5 Audi A4 4dr Sedan

turbocharged 170hp 1.8L I4 6-speed shiftable CVT FWD

Audi A4 in Nebraska, United States
Sep 2006 - Jun 2011
May 2007

69000 mi

US $70
Driver side front indicator bulb housing got burnt out, possibly due to a bad grounding issue. Audi dealer in Omaha NE on the first visit replaced bulb and on the second visit 'supposedly' replaced turn signal indicator stalk. An independent mechanic fixe 
Jun 2007

70000 mi

US $180
Wipers siezed. Mechanic had to open up the linkages and grease them. Charged me labor at 90$ for 2 hours. 
Sep 2008

86000 mi

US $450
Wiper linkage replaced. 
Sep 2010

114000 mi

US $900
ABS control module failed. Brake Light flashing in the dashboard. 

Return to top

2002.5 Audi A4 4dr Sedan

turbocharged 170hp 1.8L I4 5-speed shiftable automatic AWD

Audi A4 in Alberta, Canada
May 2007 - May 2009
Jun 2007

55490 mi

C $100
Check engine light flashing, ignition coil #4 replaced 
Jul 2007

56420 mi

C $500
Driver side door speaker connection intermittent, likely due to poor connection. Wires reconnected, connectors reset. problem resolved 
Jan 2009

64480 mi

C $450
Rear coolant had been leaking for some time and as a result, no heat was coming into the cabin. Coolant was also due for a flush.  During repair, located 2-3 more gaskets on the engine which also needed replacing. Cheap parts but expensive labour. 
Apr 2009

66960 mi
Small pin suddenly snapped out of the glove box, causing the glove box door to drop down immediately when opened. Found solution online easily. Reinserted the pin back into the dampener/hinge, fixed in less than 1 min. 
May 2009

66960 mi
It probably needed some steering or cv joint work when I sold it. The car vibrated a lot when turning It was getting too expensive to keep. I'll never own a German car out of warranty again. 
Audi A4 in Virginia, United States
Nov 2008 - Apr 2010
Aug 2008

90000 mi

US $800
PRNDS all light up while in tip tronic...Audi thought transmission could be failing. Replaced shifter tract. Security System beeping three times upon startup and would die if left still for 2 or 3 days. Finally found bad cell in battery. Fixed the issue. 
Oct 2008

93000 mi

US $30
Extreme vibration after having tires installed balanced again and again. Issue still present. 
Nov 2008

94500 mi

US $368
CV half shaft installed...purchase part myself (Audi charges 800 just for the part) and had a mechanic install it. 
Dec 2008

96000 mi

US $1500
Vibration continues...thought to be a CV axle. Replaced did not fix.  Took in to dealer for vibration. Was told a bad tire was at fault or was out of round.  Parasitic draw on battery. 8 hrs diagnositic time. Replaced door wiring harness and door latch. VERY EXPENSIVE repair.  
Jan 2009

97000 mi

US $120
Owner noticed fluid leaking from underneath car. Thought to be CV axle leaking from previous install. Steering was leaking from rack and pinion. Decided to wait until summer.  
Mar 2009

98000 mi

US $240
Traction control light came on and dealer identified as brake light sensor being bad. Cruise control would work on and off. Brake light sensor replaced and originally installed incorrectly faulting the brake pressure sensor. Dealer fixed both issues 
Apr 2009

100000 mi

US $500
Upon last trip to Audi told me I had oil leaking from the valve cover gasket. recommended also to change the cam seals. They wanted 700 to replace at dealer. Took elsewhere had motor mounts also changed and valve cover for 500.00  
Aug 2009

102000 mi

US $200
check engine light illuminated. Took to dealer and was told was vacuum leak( which explains rough idle i've had for a year). Repaired 4ft of hose and air jet. Repair did not fix rough idle. Am returning to shop next week. 
Apr 2010

110000 mi
Rough idle still present. Audi wanted to replace everything vacuum related for rough idle and do a intake manifold cleaning...declined...then sold to my father 

Return to top

2002.5 Audi A4 2dr Convertible

220-horsepower 3.0L V6 6-speed manual AWD

Audi A4 in Great Britain
Nov 2015 - Nov 2016
Sep 2016

103000 mi

£70
there was a water leak at the back of the engine. It was a heater exchange unit that was faulty. a replacement was bought second hand off ebay for £25. the engine has to be slackened in it mounts and rocked forward for access. 

Return to top

See TrueDelta's information for all Sedans, Wagons, and Convertibles.
See TrueDelta's information for all Audi models.

2003 Audi A4 Repair Histories

See our lemon odds and nada odds page to see vehicles with no repairs or vehicles with more than three repairs. To see how frequently 2003 Audi A4 problems occur, check out our car reliability stats.