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Digital Sound System Control Module, BOSE, Through MY 05






Radio System

Digital Sound System Control Module, BOSE, through MY 05

Special tools, testers and auxiliary items required

Fiber optic plier repair set (VAS 6223)

Protective cap for cable connector (VAS 6223/9)

If vehicle has Digital Radio (DAB) (R147) and TV Tuner (R78) with Digital TV Tuner (R171), the Digital TV Tuner (R171) must be removed first.

If control module is replaced, select "Replacement" function for appropriate control module in "Guided Fault-Finding" routine. Use the Vehicle Diagnosis, Testing and Information System (VAS 5051) to do so.

- Switch off all electrical consumers.

- Remove the key.

Removing

- Remove the left luggage compartment trim panel.

Vehicles with Digital Radio (DAB)/TV Tuner/Digital TV Tuner

- First remove digital TV tuner. Refer to => [ Digital TV Tuner, with Digital Radio (DAB) ] TV System.

All Vehicles

- Remove the parking aid control module (J446).

- Remove fuse panel - 1 - by loosening nuts - arrows - (6 Nm).





- Disconnect harness connectors at radio and digital radio (DAB).

- Fit the (VAS 6223/9) - 1 - onto the MOST-Bus connectors - 2 -.





- Remove the nuts - arrows - (8 Nm) on mounting points of retaining plate - 3 -.





- Disconnect all harness connectors on digital sound system control module (J525) - 1 - and on TV tuner (R78) - 2 -.

- Fit the (VAS 6223/9) - 1 - onto the MOST-Bus connectors - 2 -.





- Pull out retaining plate - 3 - toward right.

- Remove bolts - arrows - (5 Nm) on rear side of retaining plate - 2 - at digital sound system control module - 1 -.





- Pull off digital sound system control module - 1 - from retaining plate - 2 -.

Installing

- Install in reverse order.