Remove, install poly V-belt - AR13.22-P-1202B

ENGINE 112.945 in MODEL 463.232/233/244/209/245/250 

ENGINE 112 in MODEL 129, 163 

ENGINE 113 (except 113.981/965) in MODEL 202, 208, 129, 210, 163 

ENGINE 113.962 in MODEL 463.247/240/241/206/249/248/254 

ENGINE 113.982 in MODEL 463.246/243 

Shown on engine 112 

Fig 1: Identifying Poly V-Belt Components

Courtesy of MERCEDES-BENZ USA

	Remove
1	Remove viscous fan (1)	Right-hand thread!	AR20.40-P-5660C
2	Remove fan shroud (2).	Model 129, 202, 208, 210. On model 163 unscrew bolts at bottom of fan shroud. Model 463	AR20.40-P-6800V
3	Loosen and remove the poly-V-belt (3)	For this step, swivel stud bolt (4) at tensioning pulley (5) in anti-clockwise direction Lock the tension pulley with a pin or mandrel (diameter 5mm). External torx set	Fig 2
	Check
4	Inspect belt pulley sections and tensioning device for damage and dirt
5	Check poly-V-belt (3)
	Check poly-V-belt in visible area for wear	Engine 112, 113 (except 112.942/945/970, 113.942/962/965/981/982)	AP13.22-P-1352Z
		Engine 112.945, 113.962/982 in model 463	AP13.22-P-1351GA
		Engine 112.942/970, 113.942/965/981 in model 163	AP13.22-P-1351GH
	Install
6	Fit on poly-V-belt (3), then clamp	Do not use belt wax or any similar products. Proceed by the numbered sequence of the respective belt routing pattern, starting with the tension pulley: ↓ Layout diagram of poly-V-belt	AR13.22-P-3902-02B
7	Install fan shroud (2)	Model 129, 163, 202, 208, 210. Model 463 with engine 112, 113	AR20.40-P-6800V
8	Install the viscous fan (1)	Right-hand thread!	AR20.40-P-5660C

Fig 2: Identifying External Torx Set (001 589 76 09 00)

Courtesy of MERCEDES-BENZ USA