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Home >> Mercedes Benz >> 2021 >> S580 >> Repair and Diagnosis >> Accessories & Equipment >> Communication Devices >> Electrical System, Equipment & Instruments (2 Of 3) -- 223 Chassis >> Testing & Repair >> Remove/Install Active Driving Sound Compensation Control Unit - AR54.21-P-0061S

Remove/Install Active Driving Sound Compensation Control Unit - AR54.21-P-0061S

Model 223 

with code 97B (Engine noise reduction via speakers (EOC)) 

Fig 1: Active Driving Sound Compensation Control Unit Components Location - Model 223 With Code 97B
G16191637WARNINGREMOVINGINSTALLINGREFER TO SELF-DIAGNOSTIC SYSTEMSCourtesy of MERCEDES-BENZ USA
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
Notice  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 Switch off ignition and store transmitter key outside of transmission range (min. 2 m).    
2 Remove trim in the left side of the luggage compartment. Model 223 AR68.30-P-4800S
    with code 97B (Engine noise reduction via speakers (EOC))
except code Z07 (B7 armoring on special protection version)
 
3 Remove subwoofer.   AR82.62-P-7841S
    Model 223
with code 811 (High-End sound system)
with code 97B (Engine noise reduction via speakers (EOC))
 
4 Release and disconnect electrical connections (1).    
5 Remove nuts (2) and remove active driving sound compensation control unit (N156/1).    
6 Install in the reverse order.    
7 Commission active driving sound compensation control unit (N156/1). When replacing the active driving sound compensation control unit (N156/1).  
REFER TO SELF-DIAGNOSTIC SYSTEMS     AD00.00-P-2000-06FR