Audi Q7: A/C System Versions
"Low" A/C System Version
Note
There are different versions of the Audi Q7 A/C system
depending on the vehicle equipment.
Identifying features of a "Low" A/C system version
- Front A/C Display Control Head -E87- version
-A-

- There is no Rear A/C Display Control Head -E265- (version
-A- or version
-B-)
- Front heater and A/C unit in the "Low" version. Refer to
→ Chapter "Overview - Heater and A/C Unit".
- Rear air duct (no air distribution housing and no rear
heater and A/C unit). Refer to
→ Chapter "Air Ducts and Vents in the Rear Vehicle Interior, Low
A/C System".

"Mid" A/C System Version
Note
There are different versions of the Audi Q7 A/C system
depending on the vehicle equipment.
Identifying features of a "Mid" A/C system version
- Front A/C Display Control Head -E87- version
-A-

- Rear A/C Display Control Head -E265- version
-A-
- Front heater and A/C unit in the "Low" version. Refer to
→ Chapter "Overview - Heater and A/C Unit".
- Rear air distribution housing (no rear heater and A/C unit).
Refer to
→ Chapter "Air Ducts and Vent in rear Vehicle Interior, Mid or
Mix A/C System".

"Mix" A/C System Version
Note
There are different versions of the Audi Q7 A/C system
depending on the vehicle equipment.
Identifying features of a "Mix" A/C system version
- Front A/C Display Control Head -E87- version
-B-

- Rear A/C Display Control Head -E265- version
-A-
- Front heater and A/C unit in the "High" version. Refer to
→ Chapter "Component Location Overview - Front Heater and A/C
Unit Components, Mix or High A/C System".
- Rear air distribution housing (no rear heater and A/C unit).
Refer to
→ Chapter "Air Ducts and Vent in rear Vehicle Interior, Mid or
Mix A/C System".

"High" A/C System Version
Note
There are different versions of the Audi Q7 A/C system
depending on the vehicle equipment.
Identifying features of a "High" A/C system version
- Front A/C Display Control Head -E87- version
-B-

- Rear A/C Display Control Head -E265- version
-B-
- Front heater and A/C unit in the "High" version. Refer to
→ Chapter "Component Location Overview - Front Heater and A/C
Unit Components, Mix or High A/C System".
- Rear heater and A/C unit. Refer to
→ Chapter "Air Ducts and Vents in the Rear Vehicle Interior,
High A/C System".

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Safety Precautions when Working on Start/Stop System
WARNING
The engine could start automatically and cause
serious personal injury on vehicles with a Start/Stop
System.
The engine may st
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
SEE MORE:
Overview - Torque Converter
1 - Torque Converter
Refer to the Parts Catalog for the allocation to the transmission.
Removing and installing. Refer to
→ Chapter "Torque Converter, Removing and Installing".
2 - Transmission Housing
3 - Seal
For the torque c
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