Idle Speed: Adjustments

Requirements for All Adjustments:
- Engine at operating temperature, ie. oil temperature at least 60°C (140°F).
- Ignition timing and valve clearance correct.
- All electric equipment switched off.
- BMW service test unit connected to operating instructions.

1) Engine Idle Speed:





Note: There is no adjusting screw for idle speed regulation.

- Check engine idle speed. 720 ±40 rpm
- If specified value is not reached, check idle control valve (1) and idle speed regulation control unit (2), replacing if necessary.