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:
What to do if...
► The current transmission position cannot be
displayed?
The vehicle is located in an unrecognized
region, is in a poor reception area, or the
system is currently determining the position.
...
Service and Warranty Information Booklet for US models and Warranty and
Service Guide Booklet for Canadian models
Please consult your Service and Warranty Information
Booklet for US models and Warranty and
Service Guide Booklet for Canadian models for
additional information on service requirements.
Mainten ...
Sound output via speakers
In addition to the headphones, you can also play
the sound via the vehicle speakers.
1. "CD/Multimedia"
2. "External devices"
3. "AUX rear"
4. "Volume"
5 ...