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Remove/install Distronic sensor (DTR) - AR30.30-P-1010EW

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MODEL 204, 207, 212 with CODE 233 (DISTRONIC PLUS) 

Shown up to 31.5.2013 

Fig 1: Distronic Sensor Remove/Install Components
G09976027NOTESREMOVINGINSTALLINGIMPORTANTREFER TO SELF-DIAGNOSTIC SYSTEMSREFER TO SELF-DIAGNOSTIC SYSTEMSREFER 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     
1 Switch off ignition    
2.1 Remove radiator trim MODEL 207 up to 5/31/13 up to model year 2014 with CODE 233 (DISTRONIC PLUS)
MODEL 212 with CODE 233 (DISTRONIC PLUS)
 
MODEL 212 up to model year 2014 with CODE 233 (DISTRONIC PLUS) AR88.40-P-4001EW
MODEL 212 as of model year 2014 with CODE 233 (DISTRONIC PLUS) without CODE 772 (AMG body styling) without CODE 954 (AVANTGARDE) AR88.40-P-4001EWM
MODEL 212 as of model year 2014 with CODE 233 (DISTRONIC PLUS) with CODE 772 (AMG body styling) with CODE 954 (AVANTGARDE) AR88.40-P-4001EWN
MODEL 207 up to 5/31/13 up to model year 2014 with CODE 233 (DISTRONIC PLUS) AR88.40-P-4001EC
2.2 Remove cold air suction bridge MODEL 207 as of 6/1/13 with CODE 233 (DISTRONIC PLUS)
MODEL 212 as of model year 2014 with CODE 233 (DISTRONIC PLUS) with CODE 772 (AMG body styling) with CODE 954 (AVANTGARDE)
 
MODEL 207 AR88.40-P-4001EC
2.3 Remove intake air duct insert MODEL 204 with CODE 233 (DISTRONIC PLUS)  
3 Remove cover (Mercedes star) on radiator trim MODEL 204 with CODE 233 (DISTRONIC PLUS)
MODEL 207 as of 6/1/13 as of model year 2014 with CODE 233 (DISTRONIC PLUS)
MODEL 212 as of model year 2014 with CODE 233 (DISTRONIC PLUS) with CODE 772 (AMG body styling) with CODE 954 (AVANTGARDE)
IMPORTANT Loosen cover at the 3 catch hooks, on the inner side of the radiator trim.
 
4 Unlock and detach electrical connection (1) on DISTRONIC electric controller unit (A89)    
5 Unscrew nuts (3) and remove electric controller unit DISTRONIC (A89) from bracket (2)    
6 Install in the reverse order    
7 Perform initialization of DISTRONIC electric controller unit (A89) with the diagnostic system    
REFER TO SELF-DIAGNOSTIC SYSTEMS AD00.00-P-2000-04A
8 Perform calibration with diagnostic system When replacing the DISTRONIC electric controller unit (A89).  
REFER TO SELF-DIAGNOSTIC SYSTEMS AD00.00-P-2000-04A
9 Read out fault memory using the diagnostic system and clear if necessary    
REFER TO SELF-DIAGNOSTIC SYSTEMS AD00.00-P-2000-04A