I have an S320 year 2000. In the morning when coming from a cold start, meaning not used in the night. When the car moves the airmatic fault comes on. After I drive the car for 2-3 miles or the engine and transmission has warmed up the fault goes away. what I do is drive it slow for 2-3 miles, restart the engine to reset the fault then I can drive the whole day without any problem.
1. This happens only when coming from a cold start, car is unused for 8 hours or more.
2. Computer reading points to transmission but the electronic kit does not need changing as per technician. 3. Airmatic level does not sag or change.