We are going to diagnose and repair a fault that affects Audi Q7 models (4L) manufactured from 2007.
These models are equipped with Adaptive Air Suspension (AAS) self-levelling suspension system.
The diagnostic fault codes recorded in the Level Control Unit (J197) are:
- Code 1781 - Extreme inclination of the vehicle, maximum threshold value exceeded
- Code 1400 - Level control, maximum threshold value exceeded