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Home >> Mercedes Benz >> 2009 >> E350 Base >> Repair and Diagnosis >> Electrical >> Motors, Switches, Relays >> Electrical System, Equipment & Instructions -- Testing & Repair -- E350 (211.256) >> Testing & Repair >> Remove/install left front SAM control unit with fuse and relay box - AR54.21-P-1260T

Remove/install left front SAM control unit with fuse and relay box - AR54.21-P-1260T

MODEL 211.0/2/6 up to 31.5.06 

Fig 1: Identifying Left Front SAM Control Unit Components
G07284342Courtesy of MERCEDES-BENZ OF NORTH AMERICA.
REMOVINGINSTALLING Remove/install     
NOTES Notes on avoiding damage to electronic components due to electrostatic discharge   AH54.00-P-0001-01A
1.1 Temporarily store basic data from driver-side SAM control unit with fuse and relay module (N10/1) in STAR DIAGNOSIS When replacing driver-side SAM control unit with fuse and relay module (N10/1).
IMPORTANTInstallation:  transfer temporarily stored basic data to the new driver-side SAM control unit with fuse and relay module (N10/1).
 
REFER TO SELF-DIAGNOSTIC SYSTEMS Connect STAR DIAGNOSIS and read out fault memory AD00.00-P-2000-04A
STAR DIAGNOSIS diagnosis system *WH58.30-Z-1048-13A 
2 Disconnect battery ground cable Model 211.0/6 AR54.10-P-0003T
Model 211.2 AR54.10-P-0003TA 
3 Release lever (1) in direction of arrow and remove cover (2) from fuse and relay box (3) NOTESInstallation:  Make sure that the cover (2) is seated correctly as the ingress of moisture will damage electrical and electronic components.  
4 Separate electrical connectors (4)    
5 Detach electrical line (5) from driver-side SAM control unit with fuse and relay module (N10/1)    
6 Unscrew bolts (6) and remove driver-side SAM control unit with fuse and relay module (N10/1) from fuse and relay box (3) until electrical connectors on bottom side of driver-side SAM control unit with fuse and relay module (N10/1) are accessible IMPORTANTInstallation:  Pay attention to line routing. The catch hook (7) must engage.  
7 Unplug all electrical connectors from driver-side SAM control unit with fuse and relay module (N10/1). IMPORTANTInstallation:  Observe the color coding.  
8 Unclip cutoff relay for interruptible loads (K75) together with bracket from driver-side SAM control unit with fuse and relay module (N10/1)    
9 Remove driver-side SAM control unit with fuse and relay module (N10/1)    
10 Install in the reverse order    
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Number Designation
WH58.30-Z-1048-13A STAR DIAGNOSIS diagnosis system, Compact Passenger Car 6511 1801 00