Audi, A8, D3, 4.2 TDI Quattro (2005-) Common Issues
1. Rattling/Grinding Noise from Transmission
Occurrence: 20%Cost to repair: $1200Symptoms:
Noise is usually present when shifting into high gear
2. Faulty Oxygen Sensor
Occurrence: 15%Cost to repair: $400Symptoms:
Engine idle is rough and/or check engine light comes on
3. Rear Axle Bearing Failure
Occurrence: 12%Cost to repair: $800Symptoms:
Clunking or grinding noise from rear axle
4. Faulty Rear Parking Sensor
Occurrence: 11%Cost to repair: $250Symptoms:
Sensor indicator light flickers
5. Coolant Leak
Occurrence: 10%Cost to repair: $600Symptoms:
Visible leak or low coolant level
6. Faulty Front Passenger Seat Memory
Occurrence: 9%Cost to repair: $200Symptoms:
Seat memory function doesn't work as expected
7. Issues with Heated and Cooled Seats
Occurrence: 8%Cost to repair: $500Symptoms:
Heating or cooling elements not functioning properly
8. Faulty Rear Window Wiper Arm
Occurrence: 7%Cost to repair: $180Symptoms:
Wiper arm hits rear window when in use
9. Fuel System Issues
Occurrence: 6%Cost to repair: $900Symptoms:
Check engine light comes on and/or reduced fuel efficiency
10. Faulty Electronic Stability Control (ESC)
Occurrence: 5%Cost to repair: $700Symptoms:
ESC warning light flickers
11. Problems with Rear Axle CV Joints
Occurrence: 4%Cost to repair: $500Symptoms:
Clunking or grinding noise from rear axle when cornering
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