Twin-scroll turbocharging
The new four-cylinder engines also feature twin-scroll turbocharging. This means that the exhaust stream from cylinders 1 and 4, and the exhaust stream from cylinders 2 and 3, follow separate spiral-shaped paths to the turbine wheel. This reduces exhaust back-pressure at low engine rpm, allowing the energy of the exhaust gas pulses to be utilised as efficiently as possible. The result is instant throttle response and fast-revving performance which BMW drivers can instantly translate into driving pleasure.
See also:
Malfunction
A message is displayed in the instrument cluster.
HDC is not available, e.g., due to elevated
brake temperatures. ...
Roadside Assistance
Service availability
Roadside Assistance can be reached around the
clock in many countries. You can obtain assistance
there in the event of a vehicle breakdown.
Roadside Assistance
The Roadside ...
Avoiding unintentional alarms
The tilt alarm sensor and interior motion sensor
can be switched off together, such as in the following
situations:
▷ In automatic car washes.
▷ In duplex garages.
▷ During tr ...