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Home >> Mercedes Benz >> 2021 >> GLB250 Base >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Wiper/Washer Systems >> Electrical System - Body - 247 Chassis (2 Of 3) >> Testing & Repair >> Remove/Install Loudspeaker Amplifier Control Unit >> Remove/Install Loudspeaker Amplifier Control Unit - AR82.62-P-7720MFX
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Remove/Install Loudspeaker Amplifier Control Unit - AR82.62-P-7720MFX

Model 247.6 with code 810 (Premium sound system) except code 853 ("Midline" sound system) 

Fig 1: Loudspeaker Amplifier Control Unit Components Location - Model 247.6 With Code 810 Except Code 853
G14689935WARNINGREMOVINGINSTALLINGIMPORTANTREFER 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
Topical note  Information on preventing damage to electronic components due to electrostatic discharge   AH54.00-P-0001-01A
Topical note  Notes on avoiding damage to optical fibers during repair work   AH82.60-P-0001-05AK
  Notes on HANDS-FREE ACCESS   AH80.61-P-0001-01A
REMOVINGINSTALLING Remove/install     
1 Switch off ignition and store transmitter key outside of transmitter range (min. 2 m).    
2 Remove rear-end center-section trim.   AR68.30-P-4786MFV
3 Remove bolts (1).    
4 Remove holder (2).    
5 Release and disconnect electrical connectors. IMPORTANT The number of electrical connectors varies according to vehicle equipment.  
6 Remove sound system amplifier control unit (N40/3).    
7 Install in the reverse order.    
8 Commission sound system amplifier control unit (N40/3). If sound system amplifier control unit (N40/3) is replaced.  
REFER TO SELF-DIAGNOSTIC SYSTEMS     AD00.00-P-2000-06MFA