If the indicator lamp lights up, the engine speed will automatically be governed to the speed displayed in the instrument cluster. This protects the engine from overheating.

The rev limiter is deactivated as soon as the engine temperature is no longer within the critical range and you have taken your foot off the accelerator.

If the rev limiter has been activated because of a fault in the engine management system, the indicator lamp will also light up. Make sure that the engine speed does not exceed the speed displayed in the driver information system, for example when shifting down a gear. Drive to a qualified workshop without delay and have the fault rectified.