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B8 (2007-2015) B7 (2004-2008) B6 (2000-2006) B6 (2000-2006, petrol) B5 (1994-2001) B5 (1994-2001, petrol)

Central locking — control unit replacement (Audi A4 B8)

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  • Central locking — control unit replacement
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Table of contents: Central lock ↓ Removal and installation a used door… ↓ Removal and installation a used door… ↓ Removal and installation the used… ↓ Removal and installation of used… ↓ Removal and installation the fuel… ↓ Emergency fuel filler flap release… ↓

Central lock



Note: The central locking is electrical. drive. The actuators in the doors are built into the door lock and are equipped with two electric motors. The actuators cannot be replaced individually. The first electric motor locks the door, and the second one operates the interior door handle (Safe function = optional in some markets). In this case, the doors cannot be opened from the inside. After an accident with the deployment of the airbag, the used central locking system unlocks the doors if they were locked. The used central locking system is located in the rear right wing.


Sedan



1. Used front passenger. doors «J387».

1. Used front passenger. doors "J387".
2. Anti-theft alarm sensor "G578".
3. Used rear right door "J389".
4. Electric motor for opening the fuel filler flap "V155".
5. Central used comfort system "J393".
6. Used system interface. determining the location of the vehicle "J843".
7. Electric motor for remote trunk opening "V139".
8. Used rear left door "J388".
9. Used doors drive. "J386".
10. Hood contact switch "F266".




Avant



1. Used front passenger. doors «J387».

1. Used front passenger. doors "J387".
2. Anti-theft alarm sensor "G578".
3. Used rear right door "J389".
4. Electric motor for opening the fuel filler flap "V155".
5. Used trunk "J605".
6. Used system interface. determining the location of the vehicle "J843".
7. Central used comfort system "J393".
8. Electric motor for remote trunk opening "V139".
9. Used trunk "J756".
10. Used rear left door "J388".
11. Used doors drive. "J386".
12. Hood contact switch "F266".


Removal and installation a used door "J386"/"J387"



Remove the door trim. Disconnect connectors "1" and "2" by pulling the fuse and pressing the latches down. Disconnect connector "3". Disconnect plug connector "4" from the used door. Press latch "5" in the direction of the arrow and disconnect used door "6" from the door body.

Remove the door trim. Disconnect connectors «1» and «2» by pulling the fuse and pressing the…


Installation is in reverse order, and the latch should be fixed in the inner door panel.



Removal and installation a used door "J388"/"J389"



Disconnect the connectors by pulling the fuse and pressing the latches down. Press the latch in the direction of the arrow and detach the used door "1" from the door body.

Disconnect the connectors by pulling the fuse and pressing the latches down. Press the latch in the…


Installation is in reverse order, and the latch should be fixed in the inner door panel.

Removal and installation the used central comfort system "J393"



Open the right side trim of the trunk. Disconnect the "arrow" clamps and remove the center, used comfort system "J393" "pos. 4" from the mounting frame. Carefully disconnect connectors "1" and "3" and antenna connector "7". Disconnect plug connectors "2, 5, 6".

Open the right side trim of the trunk. Disconnect the «arrow» clamps and remove the center, used…


To disconnect the plug connector, press the locking button "1", turn the locking clip in the "direction of the arrow" and disconnect the plug connector. Remove the center, used comfort system "J393".



To disconnect the plug connector, press the locking button «1», turn the locking clip in the…


Removal and installation of used system interface. determining the location of the vehicle "J843"



Open the right side trim of the trunk. Disconnect the connectors to the control unit. Unscrew the arrow bolts and remove the used one from the bracket.

Open the right side trim of the trunk. Disconnect the connectors to the control unit. Unscrew the…


Removal and installation the fuel hatch opening motor. tank "V155"



1. Cable pull for emergency opening.

1. Cable pull for emergency opening.
2. Electric motor for opening the fuel filler flap "V155": removal: remove the fuel filler flap, disconnect the cable from the central used comfort system "J393" in the luggage compartment in the forward direction, remove the electric motor for opening the fuel filler flap "V155" from the body flange in the forward direction and disconnect the plug connector; installation: install el. the "V155" fuel filler flap opening motor onto the flange, while inserting the emergency opening element into the luggage compartment.
3. Fuel tank hatch: removal: after removal, it must be replaced, open the trunk lid and unscrew the bolt, do not completely remove the trunk lid from the connection with the side panel, completely remove the trunk lid at an angle from the side panel in the rear direction; installation: Insert the traction rope through the hole in the fuel hatch neck. tank, install the fuel hatch. tank with a tilt until the locking protrusions engage with the lowered flange on the side, connect the fuel tank flap and the el. with bolts. fuel filler flap opening motor "4".
4. Bolt: 1.7 Nm.
5. Fuel filler neck hatch unit. tank.
6. Drain hose.




Emergency fuel filler flap release element



1. Electric motor for opening the fuel filler flap «V155».

1. Electric motor for opening the fuel filler flap "V155".
2. Cable pull for emergency opening: install el. the "V155" fuel filler flap release motor with cable above the fuel filler flap recess, as shown in the picture; run the cable traction into the passenger compartment in the rear direction and install it on the protrusion on the flange of the central used Comfort system "J393".
3. Sidewall.


[Read the original source on the website AudiManual.ru]
The article was checked by auto expert Timur Bazhenov
This article is available at russian, bulgarian, belarusian, ukrainian, serbian, croatian, romanian, polish, slovak, hungarian

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Previous articles
Audi A4 B8: Doors, locks and windows
Next articles

Front door — outside door handle and door lock
Front door — window lift
Front door — replacing seals
Front door — position adjustment
Rear door — general information
Rear door — door opening limiter
Rear door — replacing seals
Rear door — window lift motor, window lift


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