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Disconnecting/connecting the engine wiring harness - AR01.00-P-2410PI

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ENGINE 642 in MODEL 211 

Fig 1: Identifying Engine Wiring Harness Connectors (1 Of 2)
G07252885Courtesy of MERCEDES-BENZ OF NORTH AMERICA.
Fig 2: Identifying Engine Wiring Harness Connectors (2 Of 2)
G07252886Courtesy of MERCEDES-BENZ OF NORTH AMERICA.
REMOVINGINSTALLING Removing/installing     
DANGER Risk of death  caused by vehicle slipping or toppling off the lifting platform. Align vehicle between the columns of the lifting platform and position the four support plates at the lifting platform support points specified by the vehicle manufacturer. AS00.00-Z-0010-01A
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
1 Open engine hood  
DANGER Risk of explosion  caused by escaping oxyhydrogen gas. Risk of injury  caused by caustic burns to eyes, skin and mucous membranes from battery electrolyte (contains diluted sulfuric acid) or metal spatter due to short circuit. Risk of burn injuries  caused by short circuit. Risk of poisoning  caused by swallowing battery electrolyte (contains diluted sulfuric acid) or absorption of lead over the skin or orifices No fire, sparks, open flames or smoking. Wear acid-resistant gloves and clothing and safety glasses with side guards. Do not place any conductive objects on the battery and avoid any short circuit from battery positive to ground. Only fill liquid battery electrolyte (diluted sulfuric acid) into suitable and appropriately marked containers. AS54.10-Z-0001-01A
2 Disconnect ground cable of batteries Model 211.0  
Model 211.2 AR54.10-P-0003TA
NOTES Notes on battery AH54.10-P-0001-01A
3 Remove cover of left fuse box IMPORTANTInstallation:  Check rubber seal in cover. The cover must be located in the groove at the rear.  
4 Detach connector (1) on CDI control unit (N3/9)    
5 Detach connector (2, 3) on driver-side SAM control unit with fuse and relay module (N10/1)    
6 Detach ground cable (6) in left fuse box on connector    
7 Remove rubber seal (4)    
8 Pull engine wiring harness (5) out of firewall IMPORTANT Lay engine wiring harness (5) aside.  
9 Disconnect refrigerant compressor connector (A9x1)    
10 Remove bottom sections of sound-proofing capsule    
11 Remove ground transmission (W49) TORQUE SPECIFICATION Bolt for ground line on transmission housing *BA27.40-P-1013-01A 
12 Remove heat shield (9)    
13 Unscrew connection for circuit 30 (10)    
14.1 Disconnect connector (12) for backup lamp switch with transmission 716.6.  
15.1 Dismount heat shield (11) with transmission 722.9  
TORQUE SPECIFICATION Bolt for heat shield to transmission housing *BA27.40-P-1014-01A 
16.1 Detach electronic transmission control connector (X22/19) with transmission 722.9  
15 Install in reverse order    
16 Perform basic programming    
17 Read out fault memory    
REFER TO SELF-DIAGNOSTIC SYSTEMS Connect up STAR DIAGNOSIS and read out fault memory AD00.00-P-2000-04A
STAR DIAGNOSIS diagnostic system *WH58.30-Z-1048-13A 
HOUSING

Number Designation Transmission 722.9
BA27.40-P-1013-01A Bolt for ground line on transmission housing Nm 9
BA27.40-P-1014-01A Bolt for heat shield on transmission housing Nm 9
COMMERCIALLY AVAILABLE TOOLS

Number Designation
WH58.30-Z-1048-13A STAR DIAGNOSIS diagnostic system, Compact Passenger Car 6511 1801 00