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:
After the ignition is switched off
The roof can still be operated for approx. 1 minute,
as long as no door has been opened. ...
Remove attached parts following use
Remove unneeded auxiliary mirrors, roof or rear
luggage racks after use.
Attached parts on the vehicle impair the aerodynamics
and increase the fuel consumption. ...
Bluetooth audio
At a glance
Music files on external devices such as audio
devices or mobile phones can be played
back via Bluetooth.
Use of a mobile phone as an audio source.
The sound is output on the ...
