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Home >> Mercedes Benz >> 2021 >> GLA250 4Matic >> Repair and Diagnosis >> Accessories & Equipment >> Collision/Avoidance >> Electrical System, Equipment & Instruments -- 247 Chassis (2 Of 3) >> Testing & Repair >> Remove/Install Radar Sensor In Rear Bumper - AR54.21-P-0704MFB

Remove/Install Radar Sensor In Rear Bumper - AR54.21-P-0704MFB

Model 118, 177, 243, 247 

with code 233 (Adaptive cruise control Plus (DISTRONIC PLUS)) 

Model 118, 177, 243, 247 

with code 234 (Blind Spot Assist) 

Shown on model 247.0 with code 234 (Blind Spot Assist) 

Fig 1: Radar Sensor In Rear Bumper Components Location - Model 247 With Code 233, 234 (Shown On Model 247.0 With Code 234)
G16050528REMOVINGINSTALLINGREFER TO SELF-DIAGNOSTIC SYSTEMSCourtesy of MERCEDES-BENZ USA
Topical note  Notes on preventing damage to electronic components due to a magnetic tool   AH54.00-P-0002-01A
Topical note  Information on preventing damage to electronic components due to electrostatic discharge   AH54.00-P-0001-01A
REMOVINGINSTALLING Remove/install     
1 Remove rear bumper. Model 118, 177, 247 with code 233 (Adaptive cruise control Plus (DISTRONIC PLUS))
Model 118, 177, 247
with code 234 (Blind Spot Assist)
AR88.20-P-2200MFA
    Model 243 with code 233 (Adaptive cruise control Plus (DISTRONIC PLUS)) Model 243
with code 234 (Blind Spot Assist)
AR88.20-P-2200EQA
2 Release and disconnect electrical connector (2).    
3 Release holder (1) and remove integrated rear outer left radar sensor (B92/11) or integrated rear outer right radar sensor (B92/6).    
4 Install in the reverse order.    
  Finishing activity     
5 Commission integrated rear outer left radar sensor (B92/11) or integrated rear outer right radar sensor (B92/6). When replacing the integrated rear outer left radar sensor (B92/11) or integrated rear outer right radar sensor (B92/6).  
REFER TO SELF-DIAGNOSTIC SYSTEMS     AD00.00-P-2000-06MFA