See also:

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 ...

Breaking-in period
General information Moving parts need to be broken in to adjust to each other. The following instructions will help achieve a long vehicle life and good economy. Engine and differential Always ...

Initializing after a power failure
After a power failure during the opening or closing process, the roof can only be operated to a limited extent. Initializing the system The system can be initialized when the vehicle is statio ...