N52 Belt Tensioner Torque Settings

[JeremyZ4]

N52B25A 2.5ltr

Hello, Does anyone know the Newton Meter torque settings for the Mechanical Belt Tensioner and Idle Wheel ?
TIA.
Jeremy

[davidmudley12]

Here are some useful torques I saved when I was changing the alternator and tensioner:

Torques (N52 Engine)
* Idler pulley to alternator housing - 80 Nm (59 ft-lb)
* Alternator to engine block (aluminum bolts, replace with new) - Stage 1(10Nm) Stage 2(an additional 180deg)
* Belt tensioner torque 25Nm + 90 degrees

[JeremyZ4]

Thanks David, much appreciated.