Audi Workshop Service and Repair Manuals

Repairing central locking system   Note t  The central locking system is an electrical system. t  The actuators in the doors are integrated in the lock and have 2 motors. t  The actuators cannot be renewed separately. t  The first motor locks the door, whereas the second motor locks the interior door handle (SAFE function = country-specific). t  The locked doors can no longer be opened from inside the car. t  After an accident involving triggering of the airbags, the central locking control unit will unlock any doors that are locked. t  Central locking system control unit is located in rear right side panel.

Overview of components (saloon)

1 -	Front passenger door control unit -J387-

q	Removing and installing → Anchor

2 -	Anti-theft alarm sensor -G578-

3 -	Rear right door control unit -J389-

q	Removing and installing → Anchor

4 -	Tank filler flap locking motor -V 155-

5 -	Convenience system central control unit -J393-

6 -	Interface control unit for vehicle location system -J843-

q	Removing and installing → Anchor

7 -	Rear lid release motor -V139-

8 -	Rear left door control unit -J388-

q	Removing and installing → Anchor

9 -	Driver door control unit -J386-

q	Removing and installing → Anchor

10 -	Bonnet contact switch -F266-

Overview of components (Avant)

1 -	Front passenger door control unit -J387-

q	Removing and installing → Anchor

2 -	Anti-theft alarm sensor -G578-

3 -	Rear right door control unit -J389-

q	Removing and installing → Anchor

4 -	Tank filler flap locking motor -V 155-

5 -	Rear lid control unit -J605-

6 -	Interface control unit for vehicle location system -J843-

q	Removing and installing → Anchor

7 -	Convenience system central control unit -J393-

q	Removing and installing → Anchor

8 -	Rear lid release motor -V139-

9 -	Rear lid control unit -J756-

10 -	Rear left door control unit -J388-

q	Removing and installing → Anchor

11 -	Driver door control unit -J386-

q	Removing and installing → Anchor

12 -	Bonnet contact switch -F266-

Removing and installing door control unit -J386- / -J387- –  Remove door trim → Rep. gr.70. –  Unplug electrical connectors -1- and -2-; to do so, pull locking element and press release mechanism downwards. –  Unplug electrical connector -3-. –  Move clear electrical connector -4- at door control unit. –  Press retaining catch -5- in direction of -arrow- and disengage door control unit -6- from door shell. Installing –  Install in reverse order of removal; make sure retainer engages in inner door panel. Removing and installing door control unit -J388- / -J389-

–  Unplug electrical connectors; to do so, pull locking element and press release mechanism downwards. –  Press retainer in direction of -arrow- and disengage door control unit -1- from door shell. Installing –  Install in reverse order of removal; make sure retainer engages in inner door panel. Removing and installing convenience system central control unit -J393-

–  Open luggage compartment side trim (right-side). –  Release retaining clips -arrows- and pull convenience system central control unit -J393--item 4- out of retaining frame. –  Carefully unplug electrical connectors -1- and -3- and aerial connector -7-. –  Unplug electrical connectors -2, 5, 6-.

–  To unplug electrical connector, press catch -1-, turn retaining clip in direction of -arrow- and unplug connector. –  Detach convenience system central control unit -J393-.

Removing and installing interface control unit for vehicle location system -J843- –  Open luggage compartment side trim (right-side). –  Unplug electrical connectors to control unit. –  Unscrew bolts -arrows- and pull control unit out from behind bracket.