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

MODEL 230 with CODE (487) Active Body Control (ABC) 

Fig 1: Identifying Control Unit Components
G05068211Courtesy of MERCEDES-BENZ USA
REMOVINGINSTALLING Remove/install    
NOTES Information on preventing damage to electronic components due to electrostatic discharge   AH54.00-P-0001-01A
1 Turn key in ignition lock (electronic ignition switch control unit) to position "0" IMPORTANT Vehicles with Keyless Go, code 889: Press Keyless Go start/stop button repeatedly until ignition is switched off.  
2 Remove cover (1a) below bottom left part of instrument panel (1)   AR68.10-P-1500R
3 Detach ABC control unit (N51/2) from bracket by unscrewing nuts (2) TORQUE SPECIFICATION *BA32.50-P-1001-03A 
4 Remove ABC control unit (N51/2) from bracket and put down in footwell    
5 Pull out locking slide (3a) and locking slide (4a) on the ABC control unit (N51/2) all the way in the direction of the arrow and detach electrical connectors (3, 4)    
6 Unlock and detach electrical connector (5) on ABC control unit (N51/2)    
7 Install in the reverse order    
8.1 Check vehicle level at front and rear axle with electronic inclinometer and adjust if necessary When replacing the ABC control unit (N51/2) on model 230.467 /474 /475 /476 /479 AR40.20-P-0301R
8.2 Carry out control unit adaptations using STAR DIAGNOSIS When replacing the ABC control unit (N51/2) on model 230.456 /471 /472 /477  
    STAR DIAGNOSIS diagnostic system *WH58.30-Z-1048-13A 
ACTIVE BODY CONTROL (ABC)

Number Designation Model 230
BA32.50-P-1001-03A Nut, ABC control unit to bracket Nm 6
COMMERCIALLY AVAILABLE TOOLS

Number Designation
WH58.30-Z-1048-13A STAR DIAGNOSIS diagnostic system, Compact Passenger Car 6511 1801 00