Remove/install overhead control panel control unit - AR82.20-P-1000NKB

MODEL 117 

MODEL 156 

MODEL 176 

MODEL 242 

MODEL 246 

Shown on MODEL 246 

Fig 1: Overhead Control Panel Control Unit, Headliner, Lock & Electrical Connector

Courtesy of MERCEDES-BENZ USA

Fig 2: Overhead Control Panel Control Unit & Roof Frame Paneling

Courtesy of MERCEDES-BENZ USA

	Information on preventing damage to electronic components due to electrostatic discharge		AH54.00-P-0001-01A
	Remove/install
1	Perform initial startup of overhead control panel control unit (N70) using diagnostic system	When installing new overhead control panel control unit (N70).
			AD00.00-P-2000-04A
		With CODE 882 (Interior monitoring (only with ATA [EDW])), initial startup of the ATA [EDW] control unit must also be performed.
2	Switch off ignition and remove transmitter key from electronic ignition lock control unit
3	Release and lower overhead control panel control unit (N70)	Insert a plastic card (2) or a similar object centrally between headliner (1) and overhead control panel control unit (N70) (arrow A), release left and right lock (3) and lower overhead control panel control unit (N70).
4	Remove overhead control panel control unit (N70) out of headliner (1) until electrical connector (4) can be disconnected	Pull overhead control panel control unit (N70) toward rear (arrow B), remove from roof frame lining (5) and let hang with connected electrical connectors (4).
5	Disconnect all electrical connectors (4) from overhead control panel control unit (N70)	The number of electrical connectors (4) differs depending on the vehicle equipment.
6	Remove overhead control panel control unit (N70)
7	Install in the reverse order