Removal and installation switches in doors (Mercedes-Benz C-Class W203)

Contents: Upper Switch Group/Front Door ↡ Lower switch group/front door ↡ Window lifter switch/rear door ↡

Upper Switch Group/Front Door

In the switch group next to the door handle, depending on the equipment, the switch for the electric seat and steering wheel adjustment is located.

Removal

1. Disconnect the negative (-) battery cable with the ignition off. The cabin air filter box must be removed first.

Warning! Before disconnecting the cable, find out the radio receiver security code, if any, refer to Section Replacing the battery.

2. Remove the trim on the front door, refer to Section Removal and installation the front door trim.

3. Press the locking strips with a screwdriver (arrows in the illustration) from the back of the door trim and remove the switch group (1) from the door trim.

4. Disconnect the connector at the switch group.

Installation

1. Installation is performed in the reverse order of removal.

2. Connect the battery ground (-) cable with the ignition off. Reinstall the cabin air filter box. If necessary, enter the radio code and set the clock.

Lower switch group/front door

Depending on the equipment, the switch group includes switches for the window lifter, child protection devices, and a switch for opening the trunk.

Note: Removal and installation of the window lift switch on the front passenger door is similar.

Removal

1. Disconnect the negative (-) battery cable with the ignition off. The cabin air filter box must be removed first.

Warning! Before disconnecting the cable, find out the radio receiver security code, if any, refer to Section Replacing the battery.

2. Remove the trim on the front door, refer to Section Removal and installation the front door trim.

3. Slide the lock (1) from the back of the door trim in the direction of the arrow (2). Disconnect the switch group from the holder (3) and remove.

4. Disconnect the connector at the switch group.