R 350 (251.156) V6-3.5L (272.967) (2008)
about 100 rpm when the switch-on threshold of about 900 rpm is exceeded. This increase is canceled again when the external temperature drops below
32 °C.
Undervoltage
If the engine control unit detects an undervoltage the idling speed is increased until the ignition is switched off for the driving mode selected by about
100 rpm.