Even a small amount of contamination can lead to
malfunctions. Therefore, observe the following guidelines for
cleanliness when working on the A/C system:
Immediately seal the open lines and conne
The coolant circuit is bled according to specifications.
Refer to
→ Rep. Gr.19; Coolant System/Coolant; Coolant, Draining and
Filling
The engine is warm (the coolant temperature is h
Note
Depending on vehicle equipment, there are different versions
of the A/C system for the Audi Q7. Make sure to use the correct
version and pay attention to the allocation of different
General Information
Note
Because tire damage can have serious consequences, the
technician and the driver should regularly check the tires, as
it is the best form of early problem recognition.
Pre-damaged tires cannot withstand driving situations like
high vehicle speed, long driving dist
Windshield Defogger
The Windshield Defogger Control Module -J505- is activated
by the Comfort System Central Control Module -J393- at the
request of the Front A/C Display Control Head -E87-. This
request is sent via the data bus to the Comfort System Central
Control Module -J393-. The Comfort