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Home >> Mercedes Benz >> 2019 >> GLS450 >> Repair and Diagnosis >> Electrical >> Motors, Switches, Relays >> Electrical System, Equipment & Instruments - 166 Chassis 4 Of 8 >> Testing & Repair >> Remove/Install Radar Sensor For Driver Assistance System In Rear Bumper - AR54.71-P-0003GQ

Remove/Install Radar Sensor For Driver Assistance System In Rear Bumper - AR54.71-P-0003GQ

Model 166 

with code 238 (Active lane keeping Assist) 

Model 166 

with code 253 (Rear impact warning and protection system) 

Fig 1: Radar Sensor For Driver Assistance System In Rear Bumper Components Location - Model 166 with code 238, 253
G14132346REMOVINGINSTALLINGREFER TO SELF-DIAGNOSTIC SYSTEMSCourtesy of MERCEDES-BENZ USA
Notes on preventing damage to electronic components due to a magnetic tool   AH54.00-P-0002-01A
Information on preventing damage to electronic components due to electrostatic discharge   AH54.00-P-0001-01A
REMOVINGINSTALLING Remove/install     
1 Perform commissioning of center rear bumper radar sensor (B92/1) When replacing the center rear bumper radar sensor (B92/1).  
REFER TO SELF-DIAGNOSTIC SYSTEMS     AD00.00-P-2000-04A
2 Remove rear bumper (1) Model 166.8 AR88.20-P-2200GQA
    MODEL 166.0 AR88.20-P-2200GQ
3 Disconnect electrical connector from center rear bumper radar sensor (B92/1) and unclip electrical line from bracket (3)    
4 Remove bracket (3) with center rear bumper radar sensor (B92/1)    
5 Release catch tabs (B) on bracket (3) using a suitable tool and pull center rear bumper radar sensor (B92/1) out of bracket (3) upwards    
6 Install in the reverse order