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Home >> Mercedes Benz >> 2017 >> GLC300 Base >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Drivers Assistance Systems - ADAS >> Throttle Control, Speed Control Systems - 253 Chassis - 2 Of 2 >> Testing & Repair >> Remove/Install Distronic Electric Controller Unit >> Remove/Install Distronic Electric Controller Unit - AR30.30-P-1011LWA
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Remove/Install Distronic Electric Controller Unit - AR30.30-P-1011LWA

Model 205 

up to model year 2019 

with code 239 (Active Distance Assist DISTRONIC) 

except code 233 (DISTRONIC PLUS) 

Model 253 (except 253.992/993) 

up to model year 2019 

with code 239 (Active Distance Assist DISTRONIC) 

except code 233 (DISTRONIC PLUS) 

Fig 1: Distronic Electric Control Unit Components Location - Model 253 Up To 2019 With Code 239
G12936016REMOVINGINSTALLINGREFER TO SELF-DIAGNOSTIC SYSTEMSREFER TO SELF-DIAGNOSTIC SYSTEMSREFER TO SPECIAL TOOLSCourtesy 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 Commission DISTRONIC electric controller unit (A89). When replacing the DISTRONIC electric controller unit (A89).  
REFER TO SELF-DIAGNOSTIC SYSTEMS     AD00.00-P-2000-04B
2 Switch off ignition and store transmitter key outside of transmitter range (min. 2 m).    
3.1 Remove radiator grille. Model 205
up to model year 2019
with code 239 (Active Distance Assist DISTRONIC)
with code P23 (EXCLUSIVE exterior)
except code 233 (DISTRONIC PLUS)
 
      AR88.40-P-4001LW
3.2 Remove Mercedes star. Model 205
up to model year 2019
with code 239 (Active Distance Assist DISTRONIC)
with code 772 (AMG styling package - front spoiler, side skirts and rear apron) except code 233 (DISTRONIC PLUS)
Model 205
up to model year 2019
with code 239 (Active Distance Assist DISTRONIC)
with code P15 (AVANTGARDE exterior) except code 233 (DISTRONIC PLUS)
Model 205
up to model year 2019
with code 239 (Active Distance Assist DISTRONIC)
with code P76 (Standard exterior equipment and appointments)
except code 233 (DISTRONIC PLUS)
Model 253 (except 253.992/993)
up to model year 2019
with code 239 (Active Distance Assist DISTRONIC)
except code 233 (DISTRONIC PLUS)
 
      AR88.40-P-4050LW
4 Disconnect electrical connector (1) at DISTRONIC electric controller unit (A89).    
5 Remove DISTRONIC electric controller unit (A89) from mounting clips (2) and take out.    
6 Install in the reverse order    
  Calibrate     
7 Calibrate DISTRONIC electric controller unit (A89) using the vehicle diagnosis system.    
REFER TO SELF-DIAGNOSTIC SYSTEMS     AD00.00-P-2000-04B
REFER TO SPECIAL TOOLS 000 588 17 21 00 Adjusting device   WS30.00-P-0006B