Remove/install COMAND controller unit - AR82.85-P-1100RK

MODEL 231 

Fig 1: COMAND Controller Unit Remove/Install Components (1 Of 5)

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Fig 2: COMAND Controller Unit Remove/Install Components (2 Of 5)

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Fig 3: COMAND Controller Unit Remove/Install Components (3 Of 5)

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Fig 4: COMAND Controller Unit Remove/Install Components (4 Of 5)

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Fig 5: COMAND Controller Unit Remove/Install Components (5 Of 5)

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	Remove/install
	Information on preventing damage to electronic components due to electrostatic discharge	All models	AH54.00-P-0001-01A
1	Connect STAR DIAGNOSIS and buffer basic data of COMAND controller unit (A40/3)	Only when replacing the COMAND controller unit (A40/3). Transfer temporarily stored basic data to the new COMAND controller unit (A40/3).	AD00.00-P-2000-04A
2	Switch off all electrical consumers, switch off ignition and remove transmitter key (A8/1) or KEYLESS-GO start-stop button (S2/3) from electronic ignition lock control unit (N73)	KEYLESS-GO start-stop button (S2/3) only with code (889) KEYLESS-GO.
3	Unclip lower instrument cluster paneling (1)
4	Unclip steering column tube module trim (1) from instrument panel (2) and push toward rear
5	Remove left and right trim (3) from center console	Unclip left and right trim (3) starting at rear up to height of electronic selector lever module control unit (N15/5) (arrow A), and pull out of instrument panel (4). Check that retaining lugs (5) are correctly seated in instrument panel (4).
		Assembly wedge	Figure
6	Remove bolts (6)
7	Remove screw (7) and remove bracket (8)	Note the installation position of the bracket (8).
8	Remove cover (9)	Release cover (9) at the bottom and swivel in direction of arrow (arrow B) far enough until it is released at the top and can be removed to the rear (arrow C). To swivel out, lift up the lid (10) of the ashtray slightly to avoid any damage to the lid (10).
9	Pull cover (9) far enough to rear to gain access to the electrical connectors (11)
10	Disconnect electrical connectors (11)
11	Loosen screw/bolts (12)	Loosen screws/bolts (12) far enough to enable the release catches (13) to be operated.
12	Release COMAND controller unit (A40/3)	To do so, open release catches (13) in direction of arrow (arrow D). Before installation of the COMAND controller unit (A40/3) push release catches (13) all the way up until they engage in the latches (arrow E).
13	Disconnect electrical connector (14) and pull COMAND controller unit (A40/3) out of instrument panel (4)	Only pull out far enough until the electrical connectors and the optical fiber connector on the rear of the device can be accessed.
14	Disconnect electrical connectors and optical fiber connector from rear of COMAND controller unit (A40/3) and remove COMAND controller unit (A40/3)
	Notes on avoiding damage to optical fibers during repair work	With Media Oriented System Transport (MOST)	AH82.60-P-0001-05AK
15	Remove upper control panel control unit.	Only when replacing the COMAND controller unit (A40/3).	AR54.21-P-1262RK
16	Install in the reverse order

Fig 6: Identifying Mounting Wedge (110 589 03 59 00)

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