Remove/install poly-V-belt tensioning device - AR13.25-P-3200R (SL500, SL55 AMG)

ENGINE 113.963 in MODEL 230.475

ENGINE 113.992 in MODEL 230.474

ENGINE 113.990 in MODELS 211.076 /276

ENGINE 113.991 in MODELS 215.374, 220.074 /174

ENGINE 112.973 in MODEL 230.467

ENGINE 113.995 in MODEL 230.472

Shown on engine 113

Fig 1: Identifying Poly-V-Belt Tensioning Device Components (Shown On Engine 113)

Courtesy of MERCEDES-BENZ USA

	Remove/install
1.1	Remove supercharger poly-V-belt	Vehicles with supercharger	AR13.21-P-1202RVK
2	Remove poly-V-belt (2)	Models 215, 220, 230	AR13.22-P-1202R
		Model 211	AR13.22-P-1202RV
3	Unscrew bolts (4) for tensioning device (3)	To loosen the bolts, turn the hexagon (5) at the tensioning pulley (1) in an anti-clockwise direction and lock the tensioning pulley (1) with the drift (6).
		Engine 112	*BA13.25-P-1001-01M
		Engine 113	*BA13.25-P-1001-01D
4	Install in the reverse order

BELT TENSIONING DEVICE

Number	Designation			Engines 113.940/941/942/943/944/945/946/948/960/961/962/963/964/965/966/967/968/969/971/980/981/982/984/986/987/988	Engines 113.990/991/992/993/995
BA13.25-P-1001-01D	Self-tapping bolt, belt tensioner to timing case cover	Thread not pre-tapped	Nm	35	35
BA13.25-P-1001-01D	Self-tapping bolt, belt tensioner to timing case cover	Thread pre-tapped	Nm	25	35

BELT TENSIONING DEVICE

Number	Designation			Engines 112.910/911/912/913/914/915/916/917/920/921/922/923/940/941/942/943/944/945/946/947/949/953/954/955/960/961/970/972/973/975
BA13.25-P-1001-01M	Self-tapping bolt, belt tensioner to timing case cover	Thread not pre-tapped	Nm	35
BA13.25-P-1001-01M	Self-tapping bolt, belt tensioner to timing case cover	Thread pre-tapped	Nm	25