Safety Precautions
Check for Technical Bulletins that may supersede any
information included in this manual.
WARNING
Failure to follow these instructions may result in
personal injury or po
On Board Diagnostics, or OBD, is an automotive term
referring to a vehicle's self-diagnostic and reporting
capability. OBD systems give the vehicle owner or repair
technician access to the status o
Component Location Overview - Electrical Components
1 - AWD Control Module -J492-
Component location. Refer to
→ Fig. " AWD Control Module -J492- in the A4".
Additional work after replacing the control module. Refer to
→ Chapter "AWD Control Module -J492-, Additional Wor
Information on the Refrigerant Lines and A/C Compressor
Caution
Danger due to refrigerant coming out under pressure.
Danger of frost bite to skin and other parts of the
body.
Only loosen the connection point bolts when the
refrigerant circuit is empty.
Note
On most vehicles the
General Information
