Operation CHARM: Car repair manuals for everyone.

Power Locks: Service and Repair






Central Locking Component Overview






1 Right Front Door Control Module (J387)

2 Right Rear Door Control Module (J389)

3 Fuel Filler Door Unlock Motor (V155)

Note different versions.

4 Comfort System Central Control Module (J393).

Component location, in right rear side panel.

5 Comfort System Central Control Module 2 (J773).

Component location, in right rear side panel.

6 Rear Lid Control Module (J605).

7 Rear Lid Control Module (J756).

8 Rear Lid Unlock Motor (V139).

9 Vehicle Positioning System Interface Control Module (J843)

Removing and installing, refer to => Comfort System Central Control Module 2 (J773).

10 Left Rear Door Control Module (J388).

11 Driver Door Control Module (J386).

12 Engine Hood Contact Switch (F266)

Component location in lock carrier.

Remove the Fuel filler door unlock motor - V 155 - through VIN 4L 9-014 900






1 Motor For Fuel Filler Door Release

Side trim on right side of luggage compartment removed.

- Disconnect electrical harness connector to motor.

- Loosen the screws - arrows - turning them to the right (3 mm hex) and remove the motor - 1 - from the oblong holes.

- Before installing new motor, you must first slide emergency release eye- 4 -over locking pin.

For easier installation, slide an appropriate hose - 5 -from outside to inside as an assisting tool in luggage compartment.

Place hose - 5 -on operating rod- 4 - and pull outward in tank cup.

- Slide motor into oblong holes and tighten screws to 2 Nm by turning to left.

2 Operating Rod

3 Installation Hose

Assisting tool

4 Locking Clamp

5 Cable For Emergency Release

6 Operating Rod

Removing the Fuel filler door unlock motor - V 155 - starting with VIN 4L 9-014 901

The fuel filler door unlock motor is removed together with the fuel tank insert.

The fuel tank insert must be replaced.






1 Fuel Filler Door Unit

Removal, refer to => [ Remove The Tank Flap
Unit ] Fuel Filler Door Unit.

Must be replaced after removing

Disengage the emergency release on the Comfort system central control module (J393) bracket before removing.

When installing the cable for the fuel tank flap emergency release, route it through the luggage compartment and attach it to the comfort system central control module bracket.

2 Fuel Tank Insert Cover

Removal, refer to => [ Unlocking The Fuel
Tank Insert Cover ] Fuel Filler Door.

3 Bolt

1.5 Nm

4 Fuel Filler Door Unlock Motor - V 155 -

Fuel tank insert removed.

- Disengage the emergency release on the Comfort system central control module (J393) bracket and remove it through the tank flap opening.

- Remove the screws and remove the motor from the fuel tank insert.