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:
Ventilation
Front ventilation
► Lever for changing the air flow direction, arrow 1.
► Thumbwheels for opening and closing the
vents continuously, arrows 2.
► Thumbwheel to vary the tempera ...
Having possible commands read aloud
You can have the available commands read out
loud for you: ›Voice commands‹
For example, if the "Settings" menu is displayed,
the commands for the settings are read out loud. ...
Run-flat tires
The symbol identifying run-flat tires is a circle with the letters RSC on the
sidewall.
Run-flat tires comprise a conditionally self-supporting tire and a special rim.
The reinforcement in the ...