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:
Activating
Switch position with the
ignition switched
on.
The turning lamps are automatically switched
on depending on the steering angle or the use
of turn signals.
To avoid blinding oncoming traffic ...
Starting the engine
The engine starts automatically under the following
conditions:
▷ Manual transmission:
The clutch pedal is pressed.
▷ Automatic transmission:
By releasing the brake pedal.
After the ...
Torsion-resistant body, optimal weight, wide range of safety features
The new BMW Series 1's lightweight body makes it more agile and improves
passenger safety, with high-strength steel being used to increase torsion
resistance and the strength of the passenger safe ...