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

MODEL 211.0/2 as of 2.6.08 

MODEL 211.0/2 with CODE (809) Model year 2009 

MODEL 219.3 as of 3.3.08 

MODEL 219.3 with CODE (809) Model year 2009 

With code (810) Sound system and code (889) Keyless-Go, shown on model 219.3 

Fig 1: Identifying Rear SAM Control Unit Components

Courtesy of MERCEDES-BENZ OF NORTH AMERICA.

	Remove/install
	Information on preventing damage to electronic components due to electrostatic discharge		AH54.00-P-0001-01A
1	Connect Star Diagnosis and temporarily store basic data of 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). Installation:  Transfer temporarily stored basic data to the new rear SAM control unit with fuse and relay module (N10/2).
	Connect STAR DIAGNOSIS and read out fault memory		AD00.00-P-2000-04A
2.1	Remove left side paneling in trunk	Model 211.0 without code (287) Through-loading feature and without code (924) Bivalent natural gas drive	AR68.30-P-4800T
		Model 211.0 with CODE (287) Through-loading feature	AR68.30-P-4800TA
		Model 211.0 with code (924) Bivalent natural gas drive	AR68.30-P-4800TB
		Model 219.3	AR68.30-P-4800TX
2.2	Remove interior trim on left of load compartment sideways and fold up soundproofing underneath	Model 211.2	AR68.30-P-1180T
3	Fold cover (1) to side	Only on model 219.3 Installation:  Note installation position of cover (1).
4	Remove cable ties (2) on bracket (3) and place wiring harness (4) to one side	Installation:  Install a new cable tie (2).
5.1	Undo bolts (5) and unhook bracket (6) on the rear SAM control unit with fuse and relay module (N10/2) and swivel to one side	For vehicles with code (810) Sound system or code (889) Keyless-Go For vehicles with code (889) Keyless-Go the electrical connector (7) on the KEYLESS-GO rear module control unit (N102) must also be detached.
5.2	Remove PTS control unit from rear SAM control unit with fuse and relay module (N10/2)	On vehicles without code (810) Sound system and without code (889) Keyless-Go
6	Unscrew nuts (8) from bracket (3)
7	Unscrew bolt (9) from bracket (3)
8	Pull (3) bracket far enough forward until electrical connectors on rear SAM control unit with fuse and relay module (N10/2) are accessible
9	Disconnect electrical connectors from rear SAM control unit with fuse and relay module (N10/2)	The electrical connector leading to circuit 30 must be the first to be disconnected and the last to be contacted. Note color codings of electrical connectors. The number of electrical connectors depends on the vehicle equipment.
10	Remove rear SAM control unit with fuse and relay module (N10/2) with bracket (3)
11	Remove bracket (3) on 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).
12	Check fuse and relay assignment at the 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).
	Fuse assignment of fuse and relay box in trunk	Model 211	GF54.15-P-1256-06TM
		Model 219	GF54.15-P-1256-06TXB
	Relay assignment of fuse and relay box in trunk	Model 211	GF54.15-P-1257-04TM
		Model 219	GF54.15-P-1257-04TX
13	Install in the reverse order