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Remove/install radar sensor for Lane Assistant in rear bumper - AR54.71-P-0200ECM

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MODEL 207 as of model year 2014 with CODE 238 (Active lane keeping Assist) 

MODEL 212 as of model year 2014 with CODE 238 (Active lane keeping Assist) 

MODEL 218 as of model year 2015 with CODE 238 (Active lane keeping Assist) 

MODEL 207, 218, shown on MODEL 207 

Fig 1: Lane Assistant In Rear Bumper Remove/Install Components - Model 207, 218
G09977015Courtesy of MERCEDES-BENZ USA

MODEL 212 

Fig 2: Lane Assistant In Rear Bumper Remove/Install Components - Model 212
G09977016NOTESREMOVINGINSTALLINGDANGERREFER TO SELF-DIAGNOSTIC SYSTEMSCourtesy of MERCEDES-BENZ USA
NOTES Information on preventing damage to electronic components due to electrostatic discharge   AH54.00-P-0001-01A
REMOVINGINSTALLING Remove/install     
DANGER Risk of death  caused by vehicle slipping or toppling off of the lifting platform. Align vehicle between vehicle lift columns and position the four support plates at the vehicle lift support points specified by the vehicle manufacturer. AS00.00-Z-0010-01A
1 Lift vehicle on vehicle lift    
2 Remove rear bumper (1) MODEL 207
as of model year 2014
with CODE 238 (Active lane keeping Assist)
with CODE 550 (Trailer coupling)
MODEL 212
as of model year 2014
with CODE 238 (Active lane keeping Assist)
with CODE 550 (Trailer coupling)
MODEL 218
as of model year 2015
with CODE 238 (Active lane keeping Assist)
with CODE 550 (Trailer coupling)
 
AR88.20-P-2200EW
3.1 Push lock (3.1) backwards and pull rear center bumper radar sensor (B29/10) in the direction of the arrow and out of the bracket (3) MODEL 207
as of model year 2014
with CODE 238 (Active lane keeping Assist)
MODEL 218
as of model year 2015
with CODE 238 (Active lane keeping Assist)
 
3.2 Unclip retaining bracket (4) (arrows) and detach center rear bumper radar sensor (B29/10) MODEL 212
as of model year 2014
with CODE 238 (Active lane keeping Assist)
 
4 Detach electrical connection (2) from rear center bumper radar sensor (B29/10)    
5 Install in the reverse order    
6 Connect diagnostic system, read out fault memory and delete if necessary    
REFER TO SELF-DIAGNOSTIC SYSTEMS     AD00.00-P-2000-04A