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:
System limits
Top View cannot be used in the following situations:
▷ With a door open.
▷ With the trunk lid open.
▷ With an exterior mirror folded in.
▷ In poor light.
A Check Control m ...
Speed limit
Display of a speed limit which, when reached,
should cause a warning to be issued.
Renewed warning if the vehicle speed drops below
the set speed limit once by at least 3 mph/
5 km/h.
Displayi ...
Switching off automatically
The system switches off and the LED goes out:
▷ After approx. 33 ft/10 m when driving forward.
▷ After approx. 9 mph/15 km/h when driving
forward.
Switch on the system again if necess ...