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Home >> BMW >> 2021 >> M550i xDrive >> Repair and Diagnosis >> External Pages >> Different car >> Section 262 (Engine - Tightening Torques 530I, 530I XDRIVE, 540I, 540I XDRIVE (G30)) >> 11 28 V BELT WITH BELT TENSIONER AND IDLER PULLEY (540i 2017-2020, 540i xDrive 2017-2020)

11 28 V BELT WITH BELT TENSIONER AND IDLER PULLEY (540i 2017-2020, 540i xDrive 2017-2020)

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11 28 DRIVE BELT WITH BELT TENSIONER AND IDLER PULLEY - TIGHTENING TORQUE SPECIFICATION

  Type Thread Tightening specifications Dimension
1AZ Belt tensioner with deflection pulley to crankcase B42S20O0/B46M0/O0/B48M0/O0 M10 Tightening torque  30 Nm
2AZ Belt tensioner to alternator B42S20O0/B46M0/O0/B48M0/O0 M8 Tightening torque  22 Nm
3AZ Idler pulley to belt tensioner B42S20O0/B46M0/O0/B48M0/O0 M8 Tightening torque  20 Nm
11 28 TIGHTENING TORQUE OVERVIEW

Nut on belt tensioner 
M10
Replace nut.
Tightening torque  38 Nm