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

Model 217, 222 

up to Model year 2018 

Courtesy of MERCEDES-BENZ USA

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
	Remove/install
1	Connect diagnostic system and perform initial startup of COMAND controller unit (A40/3)	When replacing the COMAND controller unit (A40/3).
			AD00.00-P-2000-04B
2	Switch off ignition and keep transmitter key outside transmitter range (at least 2 m)
3	Remove center console		AR68.20-P-2000LF
4	Loosen bolts (1) on locks (2)	Screws/bolts (1) remain on locks (2).
5	Guide COMAND controller unit (A40/3) at locks (2) out of instrument panel
6	Remove COMAND controller unit (A40/3) from locks (2) until black connector (3) and electrical connectors (4) are accessible	: Insert retaining bolts (arrows A) of COMAND controller unit (A40/3) into the locks (2).
7	Disconnect black connector (3) and electrical connectors (4)	The number of electrical connections (4) can vary depending on the equipment installed.
8	Remove COMAND controller unit (A40/3) from vehicle
9	Install in the reverse order