Idle Speed: Adjustments

The 928 S4 is equipped with an adaptive idle- speed cylinder filling control. This makes it not necessary to adjust the idle speed of any version. On cars with adaptive idle-speed cylinder filling control, system adaptation must only be carried out after disconnecting the LH control unit from the permanent positive supply and after each inspection.

Idle speed control value with engine at regular operating temperature:

775 ± 25/rpm