2002 Audi A4 / S4 / RS4 Audi A4 / S4 / RS4 2002

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

Join Us

2002 Audi A4 / S4 / RS4 repairs by problem area

Engine (52%)

Transmission and Drivetrain (9%)

Brakes and Traction Control (6%)

Suspension and Steering (12%)

Electrical and Air Conditioning (16%)

Paint, Rust, Leaks, Rattles, and Trim (2%)

Other (4%)

Select a problem area

Show all problems

Need advice about a specific Audi A4 / S4 / RS4 problem?

Chart based on 676 repairs.
See TSBs and recalls for the 2002 Audi A4 / S4 / RS4.

2002 Audi A4 / S4 / RS4 electrical repair cost distribution

$2500+ (0%)

$1000 - $2499 (4%)

$500 - $999 (15%)

$100 - $499 (33%)

< $100 (49%)

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

Chart based on 82 repair trips. The repair cost chart excludes repairs made under warranty, do-it-yourself repairs, and repair trips that include maintenance.

2002 Audi S4 4dr Sedan

turbocharged 250hp 2.7L V6 5-speed shiftable automatic AWD

125000 mi

US $1500
Alternator went bad. Had alternator replaced. Very labor intensive. 

Return to top

2002 Audi A4 4dr Wagon

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

60140 mi

C $70
License plate bulb, but screw was locked/stripped/stuck, owner unable to replace. 
91500 mi

US $60
temp sensor, only affected gauge 

Return to top

2002 Audi A4 4dr Wagon

220-horsepower 3.0L V6 6-speed manual AWD

139000 mi

US $175
Backup lights always on. Switch located on transmission (?) failed and had to be replaced. 
143000 mi bad pump for windshield wiper fluid electric window intermittent working and other electricals, etc. Had to stop throwing $ down a deep dark hole. 

Return to top

2002 Audi A4 4dr Sedan

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

51000 mi

US $200
horn replaced. 
69000 mi

US $250
both rear passenger window regulators replaced. 
101000 mi

US $130
Right rear window regulator replaced. 100,000 mile oil change. 
167000 mi

US $95
Replace Battery 
34000 mi Faulty front turn signal. 
41000 mi

US $800
Problem with driver's lumbar support caused clicking noises and back panel of seat to pop out at bottom. 
74000 mi

US $500
Alarm speaker not working. Lights are working. Not Fixed. 

Return to top

2002 Audi A4 4dr Sedan

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

65000 mi

US $250
Driver side power window relay. 
87000 mi

US $725
Right Rear Brake Light 
88000 mi Turn signal bulb. 
152000 mi

US $850
2 window regulators 
39000 mi

US $50
passenger front door electical failure (window,mirror,ilumination,lock not operational) computer replaced 
97000 mi

US $1800
rear left window regulator 
145300 mi

US $650
ac took a while to kick in 
103700 mi

US $5
Headlight electrical connector was broken. I used some electrical tape to secure the connector in place. seems to be working for now.  Wiring for the door harness has severed, losing window and wireless lock capability. Driver's side wiring harness had frayed and was no longer controlling the windows. The part was replaced. Headlight connector was broken and had to be replaced 
120000 mi

US $65
Battery was drained so recharged it. it drained again within 3 days. replaced battery under warranty. unsure yet if this fix worked of if there is a parasitic drain somewhere in the system 
122000 mi

US $15
Driver door has stopped locking with the wireless remote. Can lock manually only. 
124000 mi

US $45
Door lock on left driver still not working remotely. Door actuator was not the issue. will attempt a replacement of door harness again 
130000 mi Door not locking - wires severed in harness. parts ordered 
133000 mi

US $50
finally put in and spliced new wires. the remote lock works now! 
133000 mi

US $15
Trunk lock actuator failed - needed replacement 
142500 mi

US $10
Rear Passenger window regulator piece broke (again) - replaced 
144000 mi

US $30
Dashboard gauge for engine temp does not display correctly - Replaced coolant sensors to see if that was the issue.. did not fix. Likely need to refurb the dash. 
72000 mi

US $20
Both high and low tones horns went out 
73000 mi

US $40
Changed horn, but relay broke 
126000 mi

US $10
Antenna booster for radio and remote. Used binder clips and ruler to squeeze it back together. Radio works, but remote range is still extremely short. 
130000 mi Antenna booster not fixed. 

Return to top

2002 Audi A4 4dr Sedan

turbocharged 170hp 1.8L I4 5-speed manual FWD

41000 mi WIndow motor and regulator. 
66000 mi

US $8
Blinker light bulb. 
72000 mi

US $150
Windshield water pump 
105300 mi

US $290
Headlight switch needed replacing. 
118000 mi

US $130
Window regulator. 

Return to top

2002 Audi A4 4dr Sedan

turbocharged 170hp 1.8L I4 5-speed manual AWD

218300 mi

US $1100
A/C would stop blowing cool air after a period of time on high temperature days (90+). A/C was recharged. 
139000 mi Scanned and found an evap code. Not the gas cap, not hurting anything other than maybe the environment...barely so i am leaving it? I bought it this way. 
143000 mi

US $300
No cruise control. Replaced clutch switch 
90000 mi

US $400
rear window motor replaced 
25000 mi Replace defective Radio/CD changer (warranty) 
60000 mi

US $385
Replace defective A/C Condenser (50% warranty) 
93000 mi

US $400
Driver window mechanism broken. Had to be replaced. Driver window mechanism repair 
96000 mi Headlight bulb replaced. 
92000 mi

US $94
Replaced one front headlight and both front blinkers. Blinkers failed due to burnt connections, fixed with an electrical sealant to keep out moisture. 
124000 mi

C $800
license plate lights and lens replaced due to corrosion 
127100 mi

C $300
ac compressor failure 
150660 mi auto leveling headlights error code and drivers door interior light switch 
74000 mi

US $78
Windshield washer pump motor siezed. Blew associated fuse. I bought new washer pump, installed myself. Headlight bulb, changed myself. Took one hour, shop could probably do it in 30 minutes. 
102000 mi A/C blew cold at idle, but not at highway speed. Found vacuum leak, large 3 way hose split. Will replace next time I am near dealer, but fixed for now with duct tape. 
155000 mi

US $145
Car would randomly not start after leaving parked in the garage overnight. Aftermarket battery was not the correct battery for the car. 
126000 mi

US $300
Sensor in the system replaced, but problem is not fixed yet. Will return to shop in the near future. 
145300 mi

US $200
3rd recharge in 3 years. No leaks found this time around. 
177000 mi Had a slow AC leak for a few years, able to get by with recharges. Leak became faster and was found to be a defective AC compressor. Cost $1500 
215000 mi

US $75
Oil level sensor began intermittently incorrectly reporting low oil level. Sensor was replaced. 
216000 mi

US $45
low pressure AC line between condenser and dryer was leaking. Line was repaired with new rubber/crimps 

Return to top

2002 Audi A4 4dr Sedan

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

40500 mi replaced radio 
49582 mi speakers go in and out in volume. Installed felt strips in all 4 doors. 
87000 mi

US $50
Sunroof would randomly tilt open and close during driving. Dealership replaced a switch. 
158800 mi

US $265
Power to trunk lid failed, lights and latch not working. Replaced latch switch and lights came on, but latch still not working. 6 days of diagnostics could not identify problem. Audi dealer refused to provide wiring diagram for trunk lid. 
179000 mi Power to trunk lid never entirely fixed. 
76000 mi

US $503
Driver's door controls inoperable. Power windows inoperable in entire vehicle. Driver's door controls inoperable. Power windows inoperable in entire vehicle. 

Return to top

2002 Audi A4 4dr Sedan

220-horsepower 3.0L V6 6-speed manual AWD

63000 mi

US $200
Both horns needed to be replaced. 
141000 mi

US $230
clutch position switch 
146000 mi

US $450
windshield wiper control unit failed 
158100 mi

US $200
all windows did not go down; wiring harness to drivers door replaced 
75000 mi

US $627
Passenger HID bulb was discolored which indicates approaching failure. Shop replaced it with a new bulb and raised the default setting for the auto-leveling bulb system for increased visibility. 
128000 mi

US $800
Alternator failure. Replaced OEM alternator with after-market. 

Return to top

2002 Audi A4 4dr Sedan

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

130000 mi

US $464
Alarm horn has failed. Fault for this alarm horn also registered in the computer. Replacement cost estimate was ~$500. Not repaired due to high cost/low usage. 
164000 mi one fuel cell failure. Chargable only to ~10.5V 
190000 mi

US $200
Left headlight blown. Right headlight heavy flickering. Both headlight bulbs replaced. 
43000 mi rear brake light was off, shop replaced at no cost 
119700 mi

US $100
the windshield fluid wasn't coming out but the wipers were working fine. I took it to the dealer and they found that a fuse need to be replaced. also told me that if this happens again, the pump and the protective cover will need to change. 
146000 mi

US $295
The turning signal switch got replaced. 
163000 mi

US $910
the left rear window regulator needed to be replaced. 
244000 mi

US $40
the brakes [brake lights] used to stay on. Brake switch got replaced from an old beetle. 
245000 mi

US $70
License plate light wasn't working due to broken wires. Wires replaced and a new bulb was put on. Passed inspection. 

Return to top

2002 Audi A4 / S4 / RS4

Engine not specified

107000 mi

US $694
Many electrical functions were either not working, or operating erratically (alarm / interior lights / trunck lid / door locks, etc.) Mechanic replaced the "convenience module" on floor, which had failed (NOT due to exposure to water). 

Return to top

2002 Audi A4 / S4 / RS4 4-door

turbocharged 4-cylinder diesel manual 2WD

119660 mi

R 350
driver door wiring connector. wires cracked from door opening and closing, causing window to stop working. no error lights 

Return to top

2002 Audi A4 / S4 / RS4 4-door

4-cylinder manual 2WD

132060 mi

R 850
Alarm siren kept going off 

Return to top

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

2002 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 2002 Audi A4 / S4 / RS4 problems occur, check out our car reliability stats.