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Home >> Mercedes Benz >> 2021 >> CLS450 4Matic >> Repair and Diagnosis >> Electrical >> Motors, Switches, Relays >> Electrical System, Equipment & Instruments - 257 Chassis 3 Of 8 >> Testing & Repair >> Remove/Install Radar Sensor In Rear Bumper - AR54.21-P-0704FR

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

Model 257 

with code 233 (DISTRONIC PLUS) 

Model 257 

with code 234 (Blind Spot Monitoring) 

Fig 1: Rear Bumper Radar Sensor Component Location - Model 257 With Code(s) 234 Or 233
G14543433REMOVINGINSTALLINGREFER TO SELF-DIAGNOSTIC SYSTEMSCourtesy of MERCEDES-BENZ USA
Topical note Information on preventing damage to electronic components due to electrostatic discharge   AH54.00-P-0001-01A
Topical note Notes on preventing damage to electronic components due to a magnetic tool   AH54.00-P-0002-01A
REMOVINGINSTALLING Remove/install     
1 Perform initial startup of rear bumper radar sensor (B92/6, B92/7, B92/10, B92/11) When replacing rear bumper radar sensor (B92/6, B92/7, B92/10, B92/11).  
REFER TO SELF-DIAGNOSTIC SYSTEMS     AD00.00-P-2000-06FR
2 Remove rear bumper (1)   AR88.20-P-2200FR
3 Disconnect electrical connector (3) from rear bumper radar sensor (B92/6, B92/7, B92/10, B92/11)    
4 Release retaining tab (2) in direction of arrow and remove rear bumper radar sensor (B92/6, B92/7, B92/10, B92/11)    
5 Install in the reverse order