Remove/Install COMAND Controller/Head Unit - AR82.85-P-1100RG

Model 190 

Courtesy of MERCEDES-BENZ USA

	Notes on avoiding damage to optical fibers during repair work		AH82.60-P-0001-05AK
	Information on preventing damage to electronic components due to electrostatic discharge		AH54.00-P-0001-01A
	Remove/install
1	Connect diagnostic system and perform initial startup of head unit (A26/17)
			AD00.00-P-2000-04B
		When replacing head unit (A26/17).
2	Switch off ignition, remove transmitter key if necessary and place transmitter key outside of KEYLESS-GO transmission range
3	Remove cover on center console		AR68.20-P-2350RG
4	Loosen screw/bolts (1) at locks (2)	Screws/bolts (1) remain at locks (2).
5	Guide head unit (A26/17) at locks (2) out of instrument panel
6	Remove head unit (A26/17) from locks (2) until connector (3) and electrical connectors (4) are accessible	The retaining bolts of the head unit (A26/17) must be inserted into the locks (2).
7	Disconnect connector (3) and electrical connectors (4)	The number of electrical connectors (4) can vary depending on the equipment installed.
8	Remove head unit (A26/17)
9	Install in the reverse order