Audi A4: Interior Lights, Switches
Audi A4 (B9) 2016-2026 Service Manual / Electrical System / Electrical Equipment General Information / Interior Lights, Switches
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Immobilizer
General Information
The anti-theft immobilizer system control module can
depending on the vehicle be integrated in the following systems:
Instrument Cluster Control Module -J285-
Comfort System Ce
Trailer Hitch
Trailer Hitch Socket, Removing and Installing - Version 1
Removing
- Turn off the ignition and remove the key.
- Remove the bolts -arrows-.
- Detach the socket from the retaining plate.
SEE MORE:
Transmission Control Module -J217-, Removing and Installing
Removing
WARNING
The system is under pressure.
The electronic ATF pump must be deactivated every
time before opening the transmission, and the hydraulic
pressure reservoir is drained.
Refer to
→ Chapter "ATF Pump, Deactivating and Draining the
Hydraulic Pump Reservoir".
Refrigerant Circuit, Discharging with Service Station
Work procedure may vary depending on the type of tools
selected (the tool-specific operating instructions should
therefore be followed).
The refrigerant circuit is to be discharged if parts of the
refrigerant circuit are to be removed, if there is any doubt
about the quantity of refrigerant i
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