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:
Range
After the reserve range is
reached:
▷ A Check Control message is
displayed briefly.
▷ The remaining range is
shown on the computer.
▷ When a dynamic driving style is used, ...
USB audio interface*/mobile phone
audio interface
At a glance
It is possible to connect external audio devices.
They can be operated via iDrive. The sound is
output on the vehicle loudspeakers.
Connectors for external devices
Connection via ...
Storing
1. Switch on the ignition.
2. Set the desired position.
3. Press the button. The LED in
the
button lights up.
4. Press the desired button 1 or 2. The LED
goes out.
If the M button is presse ...