Remove and install control and operating unit

AR83.40-P-6350AK

Remove and install control and operating unit

20.7.06

5.7.06

"Disconnect/connect battery ground line" removed

 

Remove/install



Notes on avoiding damage to electronic components due to electrostatic discharge

AH54.00-P-0001-01A

1.1

Save basic data of AAC [KLA] control and operating unit (N22) in STAR DIAGNOSIS temporarily

When replacing the AAC [KLA] control and operating unit (N22).

 Installation: Transfer temporarily stored basic data to the new AAC [KLA] control and operating unit (N22).



Connect STAR DIAGNOSIS and read out fault memory

AD00.00-P-2000-04AK

STAR DIAGNOSIS diagnosis system

*WE58.40-Z-1013-06A

2.1

Remove radio

On vehicles with code (520) Radio
Audio 5 CD
or with code (523) Audio 20 MB radio
or with code (525) Audio 50 APS MB radio
or with code (534) Audio 20 CD radio Japan

AR82.60-P-7502AK

2.2

Remove COMAND operating, display and controller unit

On vehicles with code (527) COMAND APS (with navigation)
or with code (529) HIGH Class Japan

AR82.85-P-1000AK

2.3

Remove center air outlet

On vehicles without code (520) Audio 5 CD radio
or without code (523) MB Audio 20 radio
or without code (525) MB Audio 50 APS radio
or without code (527) COMAND APS
(with navigation)
or without code (529) HIGH Class Japan
or without code (534) Audio 20 CD radio, Japan

AR83.10-P-4503AK

3.1

Remove control and operating unit cover

On vehicles without code (520) Audio 5 CD radio
or without code (523) MB Audio 20 radio
or without code (525) MB Audio 50 APS radio
or without code (527) COMAND APS
(with navigation)
or without code (529) HIGH Class Japan
or without code (534) Audio 20 CD radio, Japan

AR68.20-P-2314AK

4.1

Remove mounting screws of the radio cover's carrier frame and remove carrier frame

On vehicles without code (520) Audio 5 CD radio
or without code (523) MB Audio 20 radio
or without code (525) MB Audio 50 APS radio
or without code (527) COMAND APS
(with navigation)
or without code (529) HIGH Class Japan
or without code (534) Audio 20 CD radio, Japan

5

Set knob of air distribution to general ventilation position (arrow A)

 As a result, the cable levers on the AAC [KLA] control and operating unit (N22) are moved to a favorable removal and assembly position.

6.1

Tilt top of AAC [KLA] control and operating unit (N22) forward and take out of the side mountings (arrow B) on the instrument panel (1)

On vehicles with code (523) MB Audio 20 radio
or with code (525) MB Audio 50 APS radio
or with code (527) COMAND APS
(with navigation)
or with code (529) HIGH Class Japan
or with code (534) Audio 20 CD radio, Japan

 Installation: Observe installation position and proper seating of AAC [KLA] control and operating unit (N22) in the instrument panel (1).

6.2

Press in catch lugs on side of AAC [KLA] control and operating unit (N22) using a suitable screwdriver and loosen AAC [KLA] control and operating unit (N22) from the instrument panel (1)

On vehicles without code (523) MB Audio 20 radio
or without code (525) MB Audio 50 APS radio
or without code (527) COMAND APS
(with navigation)
or without code (529) HIGH Class Japan
or without code (534) Audio 20 CD radio, Japan

 Installation: Observe installation position and proper seating of AAC [KLA] control and operating unit (N22) in the instrument panel (1).

7

Lead AAC [KLA] control and operating unit (N22) toward the rear out of the instrument panel (1)

 Swivel AAC [KLA] control and operating unit (N22) forward on the left side and then lead on the right side out of the instrument panel (1).

8

Turn AAC [KLA] control and operating unit (N22) around until the cables (2) are accessible

9

Release cables (2) via the retaining clamps (3) and press down from the cable levers on the AAC [KLA] control and operating unit (N22) using a suitable screwdriver

 Carefully release cables (2) so that the retaining clamps (3) do not snap off.

10

Release and disconnect electrical connectors (4).

11

Disconnect electrical connectors (5) and remove AAC [KLA] control and operating unit (N22)

12

Install in the reverse order

WE58.40-Z-1013-06A

STAR DIAGNOSIS Compact diagnosis system for passenger cars, order number 6511 1801 00