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Remove/install alternator - AR15.40-P-5032MRE

ENGINE 274 in MODEL 172 

Fig 1: Identifying Alternator Remove/Install Components
G10247868Courtesy of MERCEDES-BENZ USA
REMOVINGINSTALLING Remove/install     
1 Detach ground line from battery   AR54.10-P-0003W
2 Remove engine cover    
3 Remove engine air intake duct upstream of air filter    
4 Remove poly-V belt   AR13.20-P-0001MR
5 Lock poly-V belt tensioning device   AR13.20-P-0001MR
6 Remove guide pulley for poly-V belt   AR13.20-P-0001MR
7 Remove lower engine compartment paneling   AR61.20-P-1105W
8 Disconnect electrical connection (3) at alternator (G2)    
9 Detach contact protection at alternator (G2)    
10 Unscrew nut (1) and detach electrical line B+ (4) at alternator (G2) TORQUE SPECIFICATION Nut, circuit B+ to alternator *BA15.40-P-1002-01F 
11 Remove screw/bolts (2) and pull alternator (G2) upwards and out Alternator tightening procedure
INSTALLATION IMPORTANT Observe tightening pattern for alternator.
AR15.40-P-5032-03MR
TORQUE SPECIFICATION Bolt, alternator to timing case *BA15.40-P-1001-01F 
12 Install in the reverse order    
ALTERNATOR

Number Designation Engine 274
BA15.40-P-1001-01F Bolt, alternator to timing case Nm 20
ALTERNATOR

Number Designation Engine 274
BA15.40-P-1002-01F Nut, circuit B+ to alternator Nm 15