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Home >> Mercedes Benz >> 2008 >> CLS550 >> Repair and Diagnosis >> Electrical >> Motors, Switches, Relays >> Electrical System, Equipment & Instruments - 219 Chassis >> Testing & Repair >> Remove/install vehicle power supply control unit - AR54.21-P-0100TX

Remove/install vehicle power supply control unit - AR54.21-P-0100TX

MODEL 219.3 up to 31.5.06 

Fig 1: Identifying Vehicle Power Supply Control Unit Remove/Install Components (1 Of 2)
G10768153Courtesy of MERCEDES-BENZ USA
Fig 2: Identifying Vehicle Power Supply Control Unit Remove/Install Components (2 Of 2)
G10768154Courtesy of MERCEDES-BENZ USA
MODIFICATION NOTES

10.8.05 The operation step "Disconnect ground line of additional battery" is deleted    
  Attach a cable bridge from the negative terminal of the battery to vehicle ground is added 3rd stage  
REMOVING Removing     
NOTES Notes on avoiding damage to electronic components due to electrostatic discharge   AH54.00-P-0001-01A
1 Remove trunk floor covering from trunk.    
2 Remove spare tire cover or spare tire well trim from the luggage compartment IMPORTANT Depending on vehicle configuration.  
3 Connect negative terminal (7) of battery (G1) by way of adapter line (8) to ground (circuit 31) (arrow) IMPORTANT Use suitable adapter line (8) and alligator clips (9).  
SPECIAL TOOL Figure
4 Unscrew nut (1) of ground line (2) on battery control unit (N82) and remove ground line (2) IMPORTANT Observe installation position of ground line (2).  
5 Unscrew bolt (3) on battery control unit (N82)    
6 Undo bolt (4) on battery control unit (N82)    
7 Open lock (5) of electrical plug (6)    
8 Separate electrical plug (6) from battery control unit (N82) and remove battery control unit (N82)    
INSTALLING Install     
9 Position battery control unit (N82) at installation location and tighten bolt (4)    
10 Tighten bolt (3) TORQUE SPECIFICATION *BA54.10-P-1005-01C 
11 Position ground line (2) on battery control unit (N82) and tighten nut (1) TORQUE SPECIFICATION *BA54.10-P-1004-01C 
12 Remove adapter line (8) with alligator clips (9) SPECIAL TOOL Figure
13 Contact electrical plug (6) on battery control unit (N82) and lock    
14 Install spare tire cover or spare tire well trim IMPORTANT Depending on vehicle configuration.  
15 Insert luggage compartment cover in the luggage compartment    
BATTERY

Number Designation Model 219.3
BA54.10-P-1004-01C Nut, ground lead to battery control unit M8 Nm 11
BA54.10-P-1005-01C Bolt, battery control unit to body M8 Nm 20
Fig 3: Identifying Electrical Connection Kit (220 589 00 99 00)
G10768155Courtesy of MERCEDES-BENZ USA