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Home >> Mercedes Benz >> 2021 >> CLA250 4Matic >> Repair and Diagnosis >> Electrical >> Motors, Switches, Relays >> Electrical System, Equipment & Instruments (2 Of 3) -- 118 Chassis >> Testing & Repair >> Remove/Install Light Switch Module - AR54.25-P-3270MFA

Remove/Install Light Switch Module - AR54.25-P-3270MFA

Model 118, 177, 243, 247 

Shown on model 177 

Fig 1: Light Switch Module Components Location - Model 118 (Shown On Model 177)
G16050539Courtesy of MERCEDES-BENZ USA

Shown on model 177 

G16050540Courtesy of MERCEDES-BENZ USA
Topical note  Information on preventing damage to electronic components due to electrostatic discharge   AH54.00-P-0001-01A
  Notes on safety-relevant components   AH00.00-Z-0019-01A
REMOVINGINSTALLING Remove/install     
1 Switch off ignition and store transmitter key outside of transmitter range (min. 2 m).    
2 Remove edge guard in area of cover (2).    
3 Remove cover (2). SPECIAL TOOL Long wedge Fig 2
4.1 Release retaining clamp (3) through opening in cover (2), unclip cover (1) at arrows (A) and loosen until the electrical connector is accessible. Model 118, 177  
    NOTES Do not stretch or kink lines.
This will result in damage to the lines which may impair their functional capability.
 
4.2 Release retaining clamps of switch group for exterior lighting and electric parking brake (S1/2) through opening of cover (2) and loosen until the electrical connector is accessible. Model 243, 247  
    NOTES
Do not stretch or kink lines.
This will result in damage to the lines which may impair their functional capability.
 
5 Release and disconnect electrical connector from switch group for exterior lighting and electric parking brake (S1/2).    
6 Remove switch group for exterior lighting and electric parking brake (S1/2) from cover (1). Model 118, 177  
7 Install in the reverse order.    
Fig 2: Identifying Long Wedge (115 589 03 59 00)
G16063939Courtesy of MERCEDES-BENZ USA