See also:

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

1 Series M
Rather than the single-turbo setup from the 135i, the 1 Series M gets a twin-turbo six-cylinder that's good for 335 hp and 332 pounds-feet of torque. In extreme situations, the 1 Series M can ente ...

Hot exhaust system
Hot exhaust system High temperatures are generated in the exhaust system. Do not remove the heat shields installed and never apply undercoating to them. When driving, standing at idle and whi ...