Audi A8 (D3)

This page is under construction, and information here may be inaccurate or incomplete.

Engines

Cracks in the ABS exciter rings on the CV axles may cause the ABS to engage under light braking pressure
Air suspension:
- Check springs for cracking
- Check to ensure there are no leaks in the system, as they will prematurely wear out the compressor
- Make sure compressor is running and doesn’t sound bad
- Test all height settings and ensure the system does not have any of the settings greyed out
- Earlier-design height sensors may cause issues; new sensors can be identified by a black dot
If the power steering is noisy and/or feels like it’s skipping but there aren’t any leaks, you may need to replace the power steering reservoir or pump
Electronic parking brake may not function, test several times
Trunk motor gears can wear out, meaning it won’t fully close and latch
MMI display gears wear out and break, listen for noises as it goes up and down
Outside air temperature reading may be incorrect due to a bad temperature sensor or poor crimp connection
Rear sunshades break

MY04-06: TSB – A chirping/squeaking noise may occur when shifting to 4th gear or there may be a shudder. This is caused by a vibration during the control phase of the transmission torque converter clutch. Fixing requires reprogramming the transmission, changing the transmission fluid, and going for an adaptation drive.
MY04-07: TSB – Whining noise during deceleration is caused by wear in the bearing and bearing carrier in the rear differential housing