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Home >> Mercedes Benz >> 2021 >> GT C AMG 2D Convertible >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Electrical System - Engine -- 190 Chassis >> Testing & Repair >> Remove/Install Alternator - AR15.40-P-5032MNB

Remove/Install Alternator - AR15.40-P-5032MNB

Engine 178 In Model 190 

Fig 1: Alternator Components Location - Engine 178 In Model 190
G16681603Courtesy of MERCEDES-BENZ USA
REMOVINGINSTALLING Remove/install     
1 Remove ground line of battery.   AR54.10-P-0003RG
2 Remove bottom Engine compartment lining. Engine 178 in model 190.381 AR61.20-P-1105RGB
    Engine 178 in model 190 (except 190.381) AR61.20-P-1105RG
3 Turn clamping device for poly-V-belt (2) counterclockwise and lock with a suitable drift. INSTALLATION NOTES
Do not use belt wax or similar products. This leads to slipping of poly-V-belt (2).
AR13.22-P-3902-02MNA
    INSTALLATION IMPORTANT Observe poly-V-belt routing diagram.  
4 Remove poly-V-belt (2) from alternator (1).    
5 Turn clamping device for poly-V-belt (2) counterclockwise, pull out drift and release clamping device for poly-V-belt (2).    
6 Remove contact protection (5).    
7 Detach electric line (4) from alternator. TORQUE SPECIFICATION Nut, positive line to alternator *BA15.40-P-1003-01T 
8 Disconnect electrical connector (6) from alternator (1).    
9 Remove screws (3). TORQUE SPECIFICATION Bolt, alternator to alternator bracket *BA15.40-P-1001-01T 
10 Remove alternator (1) downward.    
11 Install in the reverse order.    
ALTERNATOR

Number Designation Engine 178
BA15.40-P-1001-01T Bolt, alternator to alternator bracket Nm 20
ALTERNATOR

Number Designation Engine 178
BA15.40-P-1003-01T Nut, positive line to alternator Nm 16