Remove/Install Front SAM Control Unit - AR54.21-P-1254LF

MODEL 217, 222 

Courtesy of MERCEDES-BENZ USA

	Information on preventing damage to electronic components due to electrostatic discharge		AH54.00-P-0001-01A
	Remove/install
1	Connect diagnostic system and run initial startup of front SAM control unit (N10/6)	When replacing the front SAM control unit (N10/6).
			AD00.00-P-2000-04B
2	Switch off ignition and remove transmitter key
3	Remove left cover below instrument panel	MODEL 217, 222.0/1/9	AR68.10-P-1500LF
4	Unscrew bolt (3)
5	Release electrical wiring harness (4) and push to side until the front SAM control unit (N10/6) can be removed downward out of the bracket (5) (arrow)	: Check fasteners for damage and replace, if necessary.
6	Pull front SAM control unit (N10/6) downward out of bracket (5) until the electrical connection on front SAM control unit (N10/6) can be disconnected
7	Disconnect all electrical connections on front SAM control unit (N10/6) and remove front SAM control unit (N10/6) out of footwell	The electrical connections are coded and cannot be interchanged. The number of electrical connectors varies according to vehicle equipment.
8	Install in the reverse order