Remove/install tuner unit

AR82.60-P-2002LWO

Remove/install tuner unit

12.08.2019

Model

238.3

with code 522 (Audio 20 radio)

with code 536 (Sirius satellite radio complete system)

Model

238.3

with code 522 (Audio 20 radio)

with code 537 (DAB digital radio standard (Digital Audio Broadcast))

Show except code B01 (48V technology)

1

Electrical connectors

3

Bracket

2

Screw

A90/4

Tuner unit

Shown with code B01 (48V technology)

1

Electrical connectors

4

Nuts

3

Bracket

A90/4

Tuner unit

 Warning

Risk of injury caused by fingers being jammed or pinched when removing, installing or aligning hoods, doors, trunk lid/rear-end door or sliding roof.

No parts of the body or limbs should be within the operating area when the components are moving.

AS00.00-Z-0011-01A

Topical note

Information on preventing damage to electronic components due to electrostatic discharge

AH54.00-P-0001-01A

Topical note

Notes on avoiding damage to optical fibers during repair work

AH82.60-P-0001-05AK

Notes on HANDS-FREE ACCESS

AH80.61-P-0001-01A

 

Remove/install

1

Carry out initial startup of tuner unit (A90/4)

When replacing tuner unit (A90/4).



AD00.00-P-2000-06LWO

2

Remove trunk recess cover

AR68.30-P-4600LWO

3

Switch off ignition and store transmitter key outside of transmission range (min. 2  m)

4

Remove on-board electrical system battery

Model 238.3 with code B01 (48V technology)

AR54.10-P-0009LWK

5

Disconnect electrical connectors (1) and cover optical fibers

6.1

Remove bolts (2)

Model 238.3 except code B01 (48V technology)

6.2

Unscrew nuts (4)

Model 238.3 with code B01 (48V technology)

7

Remove tuner unit (A90/4) with bracket (3) from trunk

8

Remove tuner unit (A90/4) from bracket (3)

When replacing tuner unit (A90/4).

9

Install in the reverse order