Remove/Install Alternator Belt Pulley - AR15.40-P-5710W

Engine 152 in model 172 

Engine 276.8 in model 172 

Engine 276.9 in model 172, 204, 207 

Shown on engine 276.9 in model 172 

Fig 1: Alternator Belt Pulley Components Location - Engine 276.8 In Model 172 (Shown On Engine 276.9 In Model 172)

Courtesy of MERCEDES-BENZ USA

	Remove/install
1	Remove front engine cover (1)	Engine 152 in model 172   Engine 276.9 in model 172, 204, 207
2.1	Remove engine air intake duct (2)	Engine 152 in model 172   Engine 276.9 in model 172, 204, 207
2.2	Remove fan unit	Engine 276.8 in model 172	AR20.40-P-5050WA
3.1	Remove poly-V belt (3)	Engine 276.8 in model 172   Engine 276.9 in model 172, 204, 207   Engine 276.8 in model 172   Engine 276.9 in model 172	AR13.22-P-1202W
		Engine 276.9 in model 204, 207	AR13.20-P-0001FH
3.2	Remove alternator (G2)	Engine 152 in model 172	AR15.40-P-5032MMI
4	Counter hold alternator shaft with serrated socket or Torx socket and socket wrench and detach belt pulley (4) from alternator (G2	Installation: During repairs to the alternator (), the belt pulley (4) must always be replaced after a mileage of more than G2100, 000 km. Collar nut, connecting belt pulley to alternator	*BA15.40-P-1004-01F
5	Install in the reverse order