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Remove/install control unit (ABC) - AR32.50-P-0023SX

MODEL 216, 221 with CODE (487) Active Body Control (ABC) 

Fig 1: Identifying Control Unit (ABC) Remove/Install Components
G10109341Courtesy of MERCEDES-BENZ USA
REMOVINGINSTALLING Remove/install     
1 Move the front passenger seat into the rearmost position    
2 Remove floor mat and fold back floor covering (1) in the front passenger footwell    
3 Unscrew plastic nuts (3) and fold down step plate (4) in the direction of the arrow    
4 Carry out control unit adaptations using STAR DIAGNOSIS When replacing the ABC control unit (N51/2)  
STAR DIAGNOSIS diagnosis system *WH58.30-Z-1048-13A 
5 Disconnect electrical connectors (5)    
6 Unscrew bolts (2) and remove ABC control unit (N51/2)    
7 Install in the reverse order    
8 Read out fault memory with STAR DIAGNOSIS and erase if necessary. STAR DIAGNOSIS diagnosis system *WH58.30-Z-1048-13A 
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Number Designation
WH58.30-Z-1048-13A STAR DIAGNOSIS diagnosis system, Compact Passenger Car 6511 1801 00