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:
Entering a destination manually
To make it easier to enter town/city names and street names, the system assists
you with automatic name completion and entry comparison. This makes it possible
to enter different spellings and com ...
General information
The interior lamps, footwell lamps, entry lamps
and courtesy lamps are controlled automatically.
The brightness of some of these lamps is influenced
by the thumbwheel for the instrument
lightin ...
Under the Hood
Both engines incorporate direct fuel injection and turbocharging. The
xDrive35i uses a new 3.0-liter inline-six-cylinder with one turbocharger, while
the xDrive50i uses a 4.4-liter V-8 with two. P ...