Remove/Install Sam Control Unit With Fuse And Relay Box In Trunk - AR54.21-P-1258EW

MODEL 212, 218.3/9 

Shown on MODEL 212.0 

Courtesy of MERCEDES-BENZ USA

Courtesy of MERCEDES-BENZ USA

Courtesy of MERCEDES-BENZ USA

	Remove/install
	Risk of injury  caused by fingers being jammed or pinched when removing, installing or aligning hoods, doors, trunk lid/rear-end door or sliding roof.	No parts of the body or limbs should be within the operating area when the components are moving.	AS00.00-Z-0011-01A
	Information on preventing damage to electronic components due to electrostatic discharge		AH54.00-P-0001-01A
	Notes on sensor system for trunk lid opening/closing		AH80.61-P-0001-01A
1	Connect Star Diagnosis and perform initial startup of rear SAM control unit with fuse and relay module (N10/2)	When replacing the rear SAM control unit with fuse and relay module (N10/2).	AD00.00-P-2000-04A
2	Switch off ignition and remove transmitter key or KEYLESS-GO start/stop button from electronic ignition lock control unit	KEYLESS-GO start/stop button only with code (889) Keyless-Go.
3.1	Remove side paneling at right (1)	MODEL 212.0/1, 218.3 MODEL 212.0/1	AR68.30-P-4600EW
		MODEL 218.3	AR68.30-P-4600EL
3.2	Open right interior trim in side cargo area and remove concealed insulation	MODEL 212.2, 218.9
4	Unscrew nut (2) from holder (3)
5	Tilt rear SAM control unit with fuse and relay module (N10/2) forwards and remove from holder (4)	: Make sure that electrical lines are not pinched. Otherwise the electrical system could be damaged.
6	Disconnect all electrical connectors	The circuit 30 electrical connectors (8, 9) must be disconnected first during removal  and connected last during Installation.  Otherwise short circuits may occur. Removal:  Disconnect the electrical connectors (8, 9) by pushing back the tabs using a suitable tool (arrows D, E). The plug can otherwise be damaged. The number of electrical connectors depends on the vehicle equipment.
7	Unclip fuse holder (7) from rear SAM control unit with fuse and relay module (N10/2) (arrows C) and remove rear SAM control unit with fuse and relay module (N10/2)	The number of fuse holders (7) is dependent on the vehicle equipment.
8	Compare the components of the new rear SAM control unit with fuse and relay module (N10/2) with those of the old rear SAM control unit with fuse and relay module (N10/2), if necessary adapt components to the respective vehicle equipment accordingly	When replacing the rear SAM control unit with fuse and relay module (N10/2).
9	Install in the reverse order