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

Engine 176 in model 463 

up to model year 2019 

Engine 177 in model 205 

Engine 178 in model 190 

Engine 279 in model 463 

Courtesy of MERCEDES-BENZ USA

	Remove/install
1	Remove lower engine compartment paneling	Engine 176 in model 463.234 up to model year 2019 with code ZQ0 (G 500 4x42 )	AR61.20-P-1105GWX
		Engine 176 in model 463 as of model year 2016 up to model year 2019 except code ZQ0 (G 500 4x42 ) Engine 279 in model 463 as of model year 2016 up to model year 2019 except code ZQ0 (G 500 4x42 )	AR61.20-P-1105GW
		Engine 178 in model 190	AR61.20-P-1105RG
		Engine 177 in model 205	AR61.20-P-1105LW
2	Unclip lower coolant hose of the lower low-temperature circuit expansion reservoir at lower coolant hose of the radiator	Engine 176 in model 463 up to model year 2019
3	Remove poly-V belt from belt pulley (3) on alternator (2)	Engine 279 in model 463	AR13.22-P-1202MUD
		Engine 176 in model 463 up to model year 2019 Engine 177 in model 205 Engine 178 in model 190	AR13.22-P-0003MNA
4	Detach plastic cap (1)
5	Remove belt pulley (3)	The belt pulley (3) must always be replaced after a mileage of more than 100.000 km during repair of the alternator (2). Counterhold alternator shaft (4) using a serrated socket or Torx socket and socket wrench.
		Engine 176 in model 463 up to model year 2019 Engine 177 in model 205 Engine 178 in model 190Collar nut, connecting belt pulley to alternator	*BA15.40-P-1007-01T
		Engine 279 in model 463Collar nut, connecting belt pulley to alternator	*BA15.40-P-1004-01R
		Socket wrench	Fig 1
6	Install in the reverse order

Fig 1: Identifying Socket Wrench (602 589 00 10 00)

Courtesy of MERCEDES-BENZ USA