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Home >> Mercedes Benz >> 2020 >> CLA45 AMG >> Repair and Diagnosis >> Accessories & Equipment >> Collision/Avoidance >> Electrical System, Equipment & Instruments (2 Of 3) -- 118 Chassis >> Testing & Repair >> Remove/Install Active Distance Assist DISTRONIC Electric Controller Unit - AR54.21-P-0708MFA

Remove/Install Active Distance Assist DISTRONIC Electric Controller Unit - AR54.21-P-0708MFA

Model 118 

Model 177 

Model 243, 247.0/6 

with code 239 (Adaptive cruise control Pro (DISTRONIC PRO)) 

Shown on model 177.0 with code 239 (Adaptive cruise control Pro (DISTRONIC PRO)) 

Fig 1: Active Distance Assist DISTRONIC Electric Controller Unit Components Location - Model 118 (Shown On Model 177.0 With Code 239)
G16063543REMOVINGINSTALLINGREFER TO SELF-DIAGNOSTIC SYSTEMSREFER TO SELF-DIAGNOSTIC SYSTEMSCourtesy of MERCEDES-BENZ USA
Notice  Notes on preventing damage to electronic components due to a magnetic tool   AH54.00-P-0002-01A
Notice  Information on preventing damage to electronic components due to electrostatic discharge   AH54.00-P-0001-01A
REMOVINGINSTALLING Remove/install     
1 Remove Mercedes star. Model 118 Model 177
Model 247.0/6 with code 239 (Adaptive cruise control Pro
(DISTRONIC PRO))
AR88.40-P-4053MFA
    Model 243 with code 239 (Adaptive cruise control Pro (DISTRONIC PRO)) AR88.40-P-4053EQA
2 Unclip Active Distance Assist DISTRONIC electric controller unit (A108/1), and release and disconnect electrical connector (1).    
3 Install in the reverse order.    
  Calibrate     
4 Carry out commissioning of the Active Distance Assist DISTRONIC electric controller unit (A108/1). When installing new Active Distance Assist DISTRONIC electric controller unit (A108/1).  
REFER TO SELF-DIAGNOSTIC SYSTEMS     AD00.00-P-2000-06MFA
5 Perform calibration on Active Distance Assist DISTRONIC electric controller unit (A108/1) using diagnostic system.    
REFER TO SELF-DIAGNOSTIC SYSTEMS     AD00.00-P-2000-06MFA