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Remove/Install Air Body Control Control Unit For More Accurate Control Of The Suspension - AR32.22-P-0003FR

Model 257 with code 489 (AIR BODY CONTROL) 

G14548456Courtesy of MERCEDES-BENZ USA

Shown on model 257 with code 810 (Sound system) 

WARNING Risk of injury  caused by fingers being jammed or pinched when removing, installing or aligning hoods, doors, trunk lid/rear-end door or sliding roof. No parts of the body or limbs should be within the operating area when the components are moving. AS00.00-Z-0011-01A
Topical note  Information on preventing damage to electronic components due to electrostatic discharge   AH54.00-P-0001-01A
  Notes on HANDS-FREE ACCESS   AH80.61-P-0001-01A
REMOVINGINSTALLING Remove/install     
1 Perform initial startup of AIR BODY CONTROL Plus control unit (N51/8) When replacing AIR BODY CONTROL Plus control unit (N51/8).  
REFER TO SELF-DIAGNOSTIC SYSTEMS     AD00.00-P-2000-06FR
2 Switch off ignition and store transmitter key outside of transmission range (min. 2 m)    
3 Remove left luggage compartment lining at side Model 257 with code 489 (AIR BODY CONTROL) except code 811 (Advanced sound system)  
      AR68.30-P-4800FR
4 Remove subwoofer from trunk Model 257 with code 489 (AIR BODY CONTROL) with code 811 (Advanced sound system)  
      AR82.62-P-7841FR
5 Remove bolts (3), unscrew nuts (2) and remove holder (1) with sound system control unit then place to one side Model 257 with code 489 (AIR BODY CONTROL) with code 810 (Sound system)  
Model 257 with code 489 (AIR BODY CONTROL) with code 811 (Advanced sound system)  
IMPORTANT Do not separate the electrical connectors.
6 Unscrew nut (5), remove bolts (6) and remove holder (7) with control units, then place to one side IMPORTANT The AIR BODY CONTROL Plus CONTROL unit (N51/8) is located on the rear of the holder (7).  
IMPORTANT Do not separate the electrical connectors.  
IMPORTANT The number of control units installed on the holder (7) can vary depending on the vehicle equipment installed.  
7 Disconnect electrical connector from AIR BODY CONTROL Plus control unit (N51/8)    
8 Release and disconnect AIR BODY CONTROL Plus control unit (N51/8)    
9 Install in the reverse order