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Home >> Mercedes Benz >> 2021 >> GT 43 AMG >> Repair and Diagnosis >> Engine Performance >> Tune-Up >> Electrical System -- Engine -- 290 Chassis >> Testing & Repair >> Remove/Install Starter - AR15.30-P-7100MNI

Remove/Install Starter - AR15.30-P-7100MNI

Engine 177.9 in model 290 

MODIFICATION NOTES

30.05.2023 Nut, connection for circuit designation 30 Engine 177 BA15.30-P-1004-01T
30.05.2023 Nut, connection for terminal designation 30 Motor 177 BA15.30-P-1004-01T
30.05.2023 Bolt, starter to crankcase and transmission   BA15.30-P-1001-01T
Fig 1: Starter Components Location - Engine 177.9 In Model 290
G16559287Courtesy of MERCEDES-BENZ USA
WARNING Risk of injury  . Skin or eye injuries may result when handling hot or glowing objects. Wear protective gloves, protective clothing and safety glasses, if necessary. AS00.00-Z-0002-01A
CAUTION Risk of injury  caused by scraping or cutting body parts on sharp vehicle parts Always wear protective gloves when working on or near sharp and non-deburred vehicle parts.
Deburr repair panels.
AS00.00-Z-0017-01A
Notice  Notes on self-locking nuts and bolts   AH00.00-P-0001-01KOA
REMOVINGINSTALLING Remove/install     
1 Deactivate easy entry and exit feature for steering wheel.    
2 Turn wheel and tire assembly of front axle to place with holding s device NOTES
Do not turn steering wheel with steering coupling removed.
Otherwise the clock spring contact will be destroyed.
SPECIAL TOOL Retainer device
Fig 3
3 Disconnect the ground line for the on-board electrical system battery (G1).   AR54.10-P-0003FR
4 Remove steering coupling from steering shaft and place steering coupling to one side.   AR46.10-P-8000FR
5 Release left catalytic converter.   AR49.20-P-0101MNI
6 Remove contact protection of circuit 30 electric line (4).    
7 Unclip circuit 30 electric line (4) from bracket (5).    
8 Unbolt nut (2). TORQUE SPECIFICATION Nut, connection for terminal designation 30 *BA15.30-P-1004-01T 
9 Unscrew nut (1). TORQUE SPECIFICATION Nut, connection for terminal designation 50 *BA15.30-P-1003-01T 
10 Disconnect circuit 30 electric line (4) from starter (M1).    
11 Disconnect circuit 50 electric line (3) from starter (M1).    
12 Remove sheet metal (7). TORQUE SPECIFICATION M6x1 *BA00.10-P-1002-04A 
13 Unscrew screw (8). TORQUE SPECIFICATION M6x1 *BA00.10-P-1002-04A 
14 Lift bracket (5) and remove screws (6). TORQUE SPECIFICATION Screw/nut, starter to crankcase and transmission *BA15.30-P-1001-01T 
15 Remove starter (M1) downward.    
16 Check pinion of the starter (M1) for wear and damage. When reusing the starter (M1).
If wear or damage occurs
↓
Replace starter (M1).
 
17 Remove front lower engine compartment lining. If the starter drive pinion is damaged. AR61.20-P-1105FRX
18 Turn engine at center bolt of the crankshaft in the direction of engine rotation and check starter ring gear on the flywheel for wear and damage. If the starter drive pinion is damaged.
SPECIAL TOOL Ring wrench
If wear or damage occurs
↓
Replace flywheel.
Fig 2
      AR03.30-P-8002MNI
19 Install in the reverse order.    
WARNING Risk of accident  from vehicle starting off by itself when engine running. Risk of injury  (bruises and burns) resulting from working on the engine while it is being started or when it is running. Secure vehicle to prevent it from starting off by itself. Wear closed and snug-fitting work clothes. Do not touch hot or rotating parts. AS00.00-Z-0005-01A
20 Carry out engine test run and check starter (M1) for proper operation.    
METRIC SCREWS/BOLTS AND NUTS AS PER MBN 10 105, 10 143

Number Designation 8.8 10.9
BA00.10-P-1002-04A M6x1 Nm 9 13
STARTER

Number Designation Engine 177
BA15.30-P-1001-01T Screw/nut, starter to crankcase and transmission Nm 39
STARTER

Number Designation Engine 177
BA15.30-P-1003-01T Nut, connection for terminal designation 50 Nm 9
STARTER

Number Designation Engine 177
BA15.30-P-1004-01T Nut, connection for terminal designation 30 Nm 17
Fig 2: Identifying Ring Wrench (177 589 00 03 00)
G16163192Courtesy of MERCEDES-BENZ USA
Fig 3: Identifying Retainer Device (129 589 01 21 00)
G16145172Courtesy of MERCEDES-BENZ USA