Remove/install front SAM control unit - AR54.21-P-1254NKB

MODEL 117, 156, 176, 242, 246 

Shown on MODEL 246 

Fig 1: Identifying Front SAM Control Unit Remove/Install Components - Shown On Model 246

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 Star Diagnosis and perform initial startup of SAM control unit (N10)	When installing new SAM control unit (N10).
			AD00.00-P-2000-04A
2	Switch off ignition and remove transmitter key from electronic ignition lock control unit
3	Remove left instrument panel side trim (6)	MODEL 117, 156, 176
4	Remove cover from left front footwell	MODEL 156	AR68.10-P-1500NKX
		MODEL 117, 176, 242, 246	AR68.30-P-4010NKB
5	Remove driver kneebag	MODEL 117, 156, 176, 242, 246 with CODE 294 (Kneebag)	AR91.60-P-0200NKB
6	Remove left front door sill		AR68.30-P-4100NKB
7	Remove bolt (5) from bracket (2)
8	Disconnect electrical connector (1)	MODEL 156, 176, 242, 246
9	Unhook wiring harness (4) from bracket (3.2)
10	Remove bracket (2) from guide (arrow A) downwards
11	Remove SAM control unit (N10) far enough from carrier (3) to gain access to electrical connections at rear of SAM control unit (N10)	Position SAM control unit (N10) with guides (arrows B) onto carrier (3), slide up to end stop and insert into bracket (3.1).
12	Separate electrical connections on SAM control unit (N10) and remove SAM control unit (N10)	The electrical connections are coded and cannot be interchanged.
13	Install in the reverse order