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:
Safety
BMW's inflatable tubular Head Protection System includes side curtain-type
airbags for the first and second rows. Front-seat side-impact airbags are
installed, and rear side-impact airbags are opt ...
Activating the voice activation system
1.
Press the button on the steering
wheel.
2. Wait for the signal.
3. Say the command.
The command is displayed in the instrument
cluster.
This symbol in the instrument cluster indicate ...
Wheel and tire combination
Information on the right wheel and tire combination
and rim version for your vehicle can be
obtained from the service center.
Incorrect wheel and tire combinations impair the
function of a vari ...