Amplifier: Service and Repair

Amplifier (R12)

• Familiarity with the functions and operation is essential in the event of customer concerns. Refer to Owner's Manual.

• Additional information, refer to the Owner's Manual,.

• Use the Vehicle Diagnostic Tester for Servicing or Troubleshooting.

• Check all vehicle equipment (clock, Convenience System, etc.) after connecting the battery.

• Remove the module carrier

• Connector assignments, refer to => [ Connector assignment for the amplifier ] [1][2]Amplifier, Sound System

• Read the measured values

Amplifier (R12)





The amplifier - 1 - expands the sound of the radios/RNS (RX1).

The amplifier - 1 - has 10-channel technology.

The radios/RNS speaker outputs control the signal inputs - 2 - on the amplifier - 1 -.

The amplifier - 1 - is installed under the left front seat.

Removing

- Turn off the ignition and all electrical consumers and remove the key.

- Move the left front to its highest position and then move it all the way back.






- Unlock the rear left and right cover - 1 - in direction of arrow - A -.

- Pull the cover forward - 1 - in direction of arrow - B -.

- Remove the screws - 4 - from the amplifier - 2 -.

- Pull the amplifier - 2 - out just enough until the connector - 3 - is accessible.

- Disconnect the connector - 3 - from the amplifier - 2 -.

- Remove the amplifier - 2 -.

Installing

• When installing, make sure the amplifier - 1 - is pushed in correctly into the mount - 2 - on the module carrier.






Install in reverse order of removal.

- Tighten the threaded connections to the tightening specification (6 Nm).

• Make sure the cover is mounted correctly on the front edge of the module carrier when installing it.

• Lock the cover by the left and right rear catches.

Remove the module carrier for the amplifier






- Remove the screws - 1 - (1.2 Nm ) from the center tunnel and the screws - 2 - (6 Nm) from the bracket.

- Remove the module carrier - 5 -.

- Remove the nuts - 3 - (6 Nm) from the bracket.

- Remove the bracket - 4 -.

Installing the module carrier for the amplifier

Install in reverse order of removal.

Amplifier, Reading Measured Values

Procedure

- Select "Guided Fault Finding" in Vehicle Diagnostic Tester.

- Press "GO TO".

- Select "Functions/Component selection".

- Select "Body".

- Select "Electrical Equipment".

- Select "01 - Systems capable of self-diagnosis".

- Select the "Sound System".

- Select "Sound System Functions".

- Select "Sound System Measured Values".