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Remove/install belt pulley - AR03.30-P-1700MCU

ENGINE 132.910 in MODEL 451.3/4 

Fig 1: Identifying Belt Pulley Remove/Install Components
G10978048Courtesy of MERCEDES-BENZ USA
REMOVINGINSTALLING Remove/install     
1 Remove poly-V belt   AR13.22-P-1202MCU
2 Remove poly-V belt for supercharger On vehicles with code (I01) Air conditioning Plus AR13.21-P-1202MCU
3 Remove starter   AR15.30-P-7100MCU
4 Attach retaining lock for engine   AR03.30-P-1600-06MCE
    SPECIAL TOOL Fig 2
5 Remove bolt (2) and take off together with disc (3) TORQUE SPECIFICATION *BA03.30-P-1001-01P 
6 Detach crankshaft belt pulley (1) to crankshaft and take off INSTALLATION IMPORTANT : The guide pin on the crankshaft must engage in the bore in the crankshaft belt pulley (1).
Check contact surface of the crankshaft radial sealing ring on the crankshaft belt pulley (1); replace crankshaft radial sealing ring if necessary. Refer to: ↓
Replace front crankshaft radial sealing ring
AR03.20-P-3000MCU 
7 Install in the reverse order    
FLYWHEEL, DRIVEN PLATE, VIBRATION DAMPER, STARTER RING GEAR

Number Designation ENGINE 132.9
BA03.30-P-1001-01P Belt pulley/vibration damper to crankshaft Stage 1 Nm 150
Stage 2 loosen Nm ≥ 150
Stage 3 Nm 50
Stage 4 ∠° 60
Fig 2: Identifying Retaining Lock (451 589 01 40 00)
G07246363Courtesy of MERCEDES-BENZ USA