Audi Workshop Service and Repair Manuals > A4 Mk3 > Vehicle electrics | Communication | Infotainment | Aerial system (Avant) | Removing and installing aerial amplifier 3R112 (CAN) / aerial amplifier 4R113 (MMI)

Removing and installing aerial amplifier 3R112 (CAN) / aerial amplifier 4R113 (MMI)

Removing and installing aerial amplifier 3 -R112- (CAN) / aerial amplifier 4 -R113- (MMI)

Aerial amplifier 3 -R112- / aerial amplifier 4 -R113- are located at C-pillar (left and right).

The removal and installation procedure is similar for all components.

–	Switch off all electrical equipment.

–	Remove ignition key.

Removing

–	Remove C-pillar trim → General body repairs, interior; Rep. gr.70.

–	Release and unplug connectors -1-, -2- and -5- at aerial amplifier 3 -R112--4-.

–	Unscrew bolt -arrow- and detach aerial amplifier 3 -R112--4- from C-pillar -6-.

Installing

–	Install in reverse sequence of removal.

Tightening torques → Chapter

Audi Workshop Service and Repair Manuals