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Remove/install starter - AR15.30-P-7100MMB

ENGINES 157, 278 in MODEL 216, 221 

Fig 1: Identifying Starter Remove/Install Components
G10108543Courtesy of MERCEDES-BENZ USA
REMOVINGINSTALLING Remove/install     
NOTES Notes on self-locking nuts and bolts   AH00.00-N-0001-01A
    IMPORTANT For vehicles with 4MATIC the starter (M1) is installed on the left engine side and for vehicles without 4MATIC it is installed on the right engine side.  
1 Deactivate easy entry/exit function Vehicles with 4MATIC with code (275) Memory package (driver seat, steering column, mirrors) AR54.30-P-1000-02ESX
2 Turn front wheels to straight-ahead position and secure steering wheel with holding device Vehicles with 4MATIC
NOTES The steering wheel must not be turned when the steering coupling is detached, otherwise the clock spring contact will be destroyed.
 
SPECIAL TOOL Fig 3
3 Detach ground line from battery   AR54.10-P-0003SX
NOTES Notes on battery   AH54.10-P-0001-01A
4 Remove bottom engine compartment paneling   AR61.20-P-1105SX
5 Remove steering coupling Vehicles with 4MATIC AR46.10-P-8000SX
6 Remove electrical connection on SPS solenoid valve and set aside Vehicles with 4MATIC  
7 Remove shield over starter (M1)    
8 Detach protection against accidental contact (3) and detach electrical line circuit 30 at starter (M1) TORQUE SPECIFICATION *BA15.30-P-1001-01J 
9 Disconnect electrical line of circuit 50 (4) at starter (M1) TORQUE SPECIFICATION *BA15.30-P-1002-01J 
10 Unclip electrical line (2) at starter (M1) and cylinder crankcase    
11 Remove bolts (5) of starter (M1) TORQUE SPECIFICATION *BA15.30-P-1003-01J 
12 Remove starter (M1) from below    
INSPECT Checking     
13 Check ring gear at the drive plate for wear and damage When replacing the starter (M1)
IMPORTANT Rotate engine at center bolt of crankshaft in the direction of rotation.
 
SPECIAL TOOL Fig 2
14 Install in the reverse order    
STARTER

Number Designation Engine 157 Engine 278
BA15.30-P-1001-01J Nut, connection for circuit 30 Nm 15 15
BA15.30-P-1002-01J Nut, connection for circuit 50 Nm 6 6
BA15.30-P-1003-01J Bolt connecting starter to crankcase Nm 40 40
Fig 2: Identifying Wrench Socket (001 589 65 09 00)
G07492046Courtesy of MERCEDES-BENZ USA
Fig 3: Identifying Holding Device (129 589 01 21 00)
G07279187Courtesy of MERCEDES-BENZ USA