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Home >> Mercedes Benz >> 2013 >> S400 >> Repair and Diagnosis >> Engine Performance >> Tune-Up >> Mixture Formation - 221 Chassis - 2 Of 6 >> Testing & Repair >> Remove/install injection system control unit >> Remove/install injection system control unit - AR07.08-P-7008SXI

Remove/install injection system control unit - AR07.08-P-7008SXI

ENGINE 642 in MODEL 221 

Fig 1: Identifying Injection System Control Unit Remove/Install Components
G10126448Courtesy of MERCEDES-BENZ USA
REMOVING Removing     
1.1 Read out transfer variant coding of CDI control unit (N3/9) using STAR DIAGNOSIS Only when replacing CDI control module (N3/9)
IMPORTANT Connect up the STAR DIAGNOSIS system and read in the version coding from the control unit into STAR DIAGNOSIS, see: ↓
 
REFER TO SELF-DIAGNOSTIC SYSTEMS Connect up STAR DIAGNOSIS and read out fault memory AD00.00-P-2000-04A
STAR DIAGNOSIS diagnosis system *WH58.30-Z-1048-13A 
2 Switch off ignition    
DANGER Risk of injury  caused by fingers being jammed or pinched  when removing, installing or aligning hoods, doors, trunk lid/rear-end door or sliding roof. When moving components, ensure that no body parts or limbs are within the operating range of moving parts. AS00.00-Z-0011-01A
3 Open engine hood and move to upright position
4 Remove cover (1)    
5 Release connectors (2) and disconnect    
6 Remove CDI control unit (N3/9) from cover (1) IMPORTANT Unscrew screws (4) for this step.  
INSTALLING Install     
7 Install CDI control unit (N3/9) in cover (1) IMPORTANT Screw in bolts (4) for this step.  
8 Fit couplings (2) on CDI control unit (N3/9) and lock    
9 Install cap (1) IMPORTANT Check rubber seal in cover (1) and replace as required  
10.1 Transfer variant coding into new CDI control unit (N3/9) Only when replacing CDI control module (N3/9)
IMPORTANT Transfer the version coding of the previously installed CDI control unit (N3/9) stored in the STAR DIAGNOSIS system into the new CDI control unit (N3/9).
 
STAR DIAGNOSIS diagnosis system *WH58.30-Z-1048-13A 
11.1 Start up CDI control unit (N3/9) using STAR DIAGNOSIS IMPORTANT After replacing the CDI control unit (N3/9) the CDI control unit (N3/9) must be adjusted to the vehicle using menu item "initial startup" in STAR DIAGNOSIS.  
DANGER Risk of accident  caused by vehicle starting off by itself when engine is running. Risk of injury  caused by contusions and burns during starting procedure or when working near the running engine Secure vehicle to prevent it from moving by itself.
Wear closed and snug-fitting work clothes. Do not grasp hot or rotating parts.
AS00.00-Z-0005-01A
12 Carry out engine test run
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Number Designation
WH58.30-Z-1048-13A STAR DIAGNOSIS diagnosis system, Compact Passenger Car 6511 1801 00