See also:

Checking the engine oil level
Your car is equipped with an electronic engine oil level check. Requirements ▷ The engine must be running and warm after the vehicle has been driven for at least 6.2 miles/10 km. ▷ ...

Deactivating HDC
Press the button again and the LED goes out. HDC is automatically deactivated above approx. 37 mph/60 km/h. ...

Switching on/off
Press the button. ...