Install alternator.
Poly-V belt adjusting procedure:
Poly-V belt installation procedure:
Slightly tighten hex nut (1) on adjusting screw (2) by hand (do not use tools).
Tighten adjusting screw (2) with a torque wrench and keep preload applied. Tighten upper retaining nut (3), then remove torque wrench from adjusting screw.
Tightening torque:
- Preload Poly-V belt with adjusting screw — 8 Nm
- Alternator to alternator support cover — 20 Nm
Install front cover.
Install oil filter with oil filter wrench, BMW No. 11 4 650.
Install the oil drain plug with a new seal.
Tightening torque:
- Oil filter (sealing face lightly oiled) — 11 Nm
- Oil drain plug — 32 Nm
Install spark plugs with spark plug socket wrench, BMW No. 123510.
Tightening torque: Spark plug — 20 Nm