Remove/install SAM control unit with fuse and relay box in trunk - AR54.21-P-1258EC

MODEL 207.3 

Fig 1: Identifying SAM Control Unit With Fuse And Relay Box Remove/Install Components (1 Of 3)

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Fig 2: Identifying SAM Control Unit With Fuse And Relay Box Remove/Install Components (2 Of 3)

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Fig 3: Identifying SAM Control Unit With Fuse And Relay Box Remove/Install Components (3 Of 3)

Courtesy of MERCEDES-BENZ USA

	Remove/install
	Information on preventing damage to electronic components due to electrostatic discharge		AH54.00-P-0001-01A
1	Buffer the basic data of the rear SAM control unit with fuse and relay module (N10/2) in STAR DIAGNOSIS When replacing the rear SAM control unit with fuse and relay module (N10/2).
		Transmit buffered basic data.
	Connect STAR DIAGNOSIS and read out fault memory		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	Remove trunk lining on right-hand side		AR68.30-P-4600EC
4	Unclip fuse holder (1) of rear SAM control unit with fuse and relay module (N10/2) at the catch hooks (3) and place to one side
5	Unscrew nut (2), tilt rear SAM control unit with fuse and relay module (N10/2) forward and guide out of the bracket (5)	Ensure that no electrical lines are pinched otherwise there is the danger that the electrical system will be damaged.
6	Disconnect all electrical connectors and unclip fuse holder (7) from rear SAM control unit with fuse and relay module (N10/2). Then remove rear SAM control unit with fuse and relay module (N10/2).	The terminal 30 conducting electrical connectors (8, 9) must be disconnected first and contacted last in order to avoid short circuits. The number of electrical connectors and fuse holders (7) depends on the vehicle equipment. Unlock electrical connectors (8, 9) by pressing back the shackles using an extraction hook (arrows B, C) and disconnect.
		The contact blade (10) must make contact fully forwards in the connector housing of the electrical connectors (8, 9).	Figure
7	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).
8	Install in the reverse order

Fig 4: Identifying Pulling Hook (140 589 02 33 00)

Courtesy of MERCEDES-BENZ USA