2003 Audi A4 / S4 / RS4 Audi A4 / S4 / RS4 2003

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2003 Audi A4 / S4 / RS4 repairs by problem area

Engine (48%)

Transmission and Drivetrain (7%)

Brakes and Traction Control (6%)

Suspension and Steering (8%)

Electrical and Air Conditioning (22%)

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

Other (7%)

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Chart based on 310 repairs.

2003 Audi A4 / S4 / RS4 electrical repair cost distribution

$2500+ (7%)

$1000 - $2499 (10%)

$500 - $999 (25%)

$100 - $499 (41%)

< $100 (17%)

Chart based on 71 repair trips. The repair cost chart excludes repairs made under warranty, do-it-yourself repairs, and repair trips that include maintenance.

2003 Audi A4 4dr Wagon

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

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. 
46000 mi Replaced air temperature control servo motor and air flow control servo motor. 

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2003 Audi A4 4dr Wagon

turbocharged 170hp 1.8L I4 5-speed manual AWD

108000 mi

US $500
Alarm backup battery leaked and damaged alarm. Need to replace. No alarm beeps or warnings. 
133920 mi Passenger side window regulator had gone bad. 
73000 mi

US $100
Driver side HID ballast replaced 
129300 mi Driver rear door wiring broken. 
156000 mi Car burned up. Probably from a leak in the turbo oil feed. 

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2003 Audi A4 4dr Wagon

220-horsepower 3.0L V6 6-speed manual AWD

77000 mi

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

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2003 Audi A4 4dr Sedan

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

139300 mi car wouldn't start but battery was new. needed new starter solenoid. 
61380 mi  

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2003 Audi A4 4dr Sedan

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

133000 mi

US $40
purchased part on Ebay and will repair it shortly. It is the alarm and module located in the trunks. 
39000 mi radio antenna amp replacement 
44000 mi wrong turn signal turning on then switching to correct signal after a random period of time, usually around 10 seconds 
56500 mi wiring harness to starter failed, engine would not start. 
19000 mi Drivers Side tail light burned out. 
64000 mi

US $912
replaced comfort control module part: $200 labor: $300 
36000 mi Replaced radio due to lines in the display, Covered by Dealer under warranty 
114000 mi

US $350
Replaced cam shaft positioning sensor. Prevents occasional stalls when car is cruising or decelerating and can't accurately sense the speed. 
67580 mi

C $850
Repair homelink (garage door opener) module. 
68820 mi Right rear running light replaced.  
87420 mi

C $600
A/C recharged and  front signal light lamp replaced. 
119000 mi

US $1400
Thermostat & Heater Core Replaced. 

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2003 Audi A4 4dr Sedan

turbocharged 170hp 1.8L I4 5-speed manual FWD

8000 mi Window switch cluster in drivers door not responding. Replaced under warranty. 
40000 mi Passengers side xenon light severely flickering. Dealer service department was "unable to reproduce symptom". 

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2003 Audi A4 4dr Sedan

turbocharged 170hp 1.8L I4 5-speed manual AWD

94860 mi

C $60
Wiring between chases and door wore out.spliced and replaced. 
48000 mi

US $50
driver main window switch assembly failure 
115000 mi

US $200
Driver door wiring harness 
125000 mi

US $1250
Alternator bearings were getting noisy. Alternator removed to replace thermostat, so got a new one. 
54000 mi

US $50
Replaced trunk switch (under warranty) 
55000 mi

US $50
Replaced starter (under warranty) 
127000 mi

US $180
rear left window regulator broke and was replaced with OEM part supplied by owner 
127500 mi oil level sensor light came up. replaced sensor. 
140000 mi

US $250
grounding wires for license plate light went faulty 
72000 mi

US $250
The rear driver side window regulator broke.  
72000 mi

US $250
The rear passenger side window regulator broke. Currently waiting to see if the front regulators break. 
65000 mi

US $90
Windshield washer pump had to be replaced, because it was not functioning and lead to loss of fluid 
41000 mi

US $400
headlight leveling system failed 
84700 mi auto leveling lights failed 

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2003 Audi A4 4dr Sedan

220-horsepower 3.0L V6 6-speed manual AWD

158000 mi

US $500
Driver window's motor failed for the 2nd time. Very expensive each time. 
161000 mi

US $230
Brake switch; 
90000 mi

US $50
Mirrors move when car unlocked with remote. Headlight switch backlight led inorperative. 
140000 mi

US $1900
a/c compressor seized. compressor and condenser replaced 
171700 mi

US $600
a/c compressor replaced 
204000 mi

US $15
clutch pedal switch replaced 
209700 mi

US $140
replaced battery 
55619 mi

US $25
Replace right rear tail light 
59275 mi

US $29
Replace interior light under right front seat 
60668 mi

US $29
Replace left rear tail light bulbs 
80328 mi

US $43
Replace right front turn signal 
82766 mi

US $280
Repair license plate bulb assembly 

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2003 Audi A4 4dr Sedan

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

71000 mi

US $600
The antenna selection module in the radio failed, which caused the radio to lose reception for most FM stations. The repair for this was $400. The car also needed new front brake pads, which was $200 with parts and labor. 
65000 mi

US $200
drivers side window button 
71000 mi

US $300
motor for windshield wipers 
44765 mi trunk release switch is broken. not repaired yet 
62830 mi

US $363
replace windshield wiper transmission 
US $400 Driver's window (regulator) 
101000 mi

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

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2003 Audi A4 / S4 / RS4

Engine not specified

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. 

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2003 Audi A4 / S4 / RS4 4-door

turbocharged 4-cylinder diesel manual AWD

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. 
314340 mi

€100
Rear wiper motor needed to be replaced 

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2002.5 Audi A4 4dr Sedan

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

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 

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2002.5 Audi A4 4dr Sedan

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

96000 mi

US $1500
Parasitic draw on battery. 8 hrs diagnositic time. Replaced door wiring harness and door latch. VERY EXPENSIVE repair.  
56420 mi

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

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See TrueDelta's information for all Audi models.

2003 Audi A4 / S4 / RS4 Electrical Problems

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 / S4 / RS4 problems occur, check out our car reliability stats.