Audi, A6, C7, 2.0 TDI (2011-) Common Issues
1. Engine Oil Leaks
Occurrence: 12%Cost to repair: $350Symptoms:
Blue smoke from exhaust, oil on underside of engine, or oil leaking onto the ground.
2. Faulty Air Mass Sensor (AMS)
Occurrence: 15%Cost to repair: $250Symptoms:
Poor engine performance, rough idling, or failure to pass emissions tests.
3. Transmission Issues
Occurrence: 8%Cost to repair: $1200Symptoms:
Slipping or hesitation between gears, difficulty shifting into certain gears, or sudden loss of power.
4. Faulty Diesel Particulate Filter (DPF)
Occurrence: 6%Cost to repair: $800Symptoms:
Reduced engine performance, increased fuel consumption, or failure to pass emissions tests due to clogged DPF.
5. Coolant Leaks
Occurrence: 9%Cost to repair: $450Symptoms:
Green or yellow fluid leaks onto the ground, or overheating of the engine.
6. Faulty Glow Plugs
Occurrence: 14%Cost to repair: $180Symptoms:
Difficulty starting the engine, rough idling, or poor engine performance.
7. Rear Brake Wear and Tear
Occurrence: 16%Cost to repair: $300Symptoms:
Worn-out brake pads, warped rotors, or other issues with rear braking system.
8. Faulty O2 Sensor
Occurrence: 11%Cost to repair: $220Symptoms:
Poor engine performance, rough idling, or failure to pass emissions tests due to faulty oxygen sensor.
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