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:
Adding engine oil
Filler neck
Only replenish the maximum oil amount of
1 US quart/liter if the message is displayed in the
instrument cluster or the oil level has dropped to
just at the lower mark of the dipst ...
The concept
Adaptive light control is a variable headlamp
control system that enables dynamic illumination
of the road surface.
Depending on the steering angle and other parameters,
the light from the head ...
Performance
The 650i is the only 6 Series trim available for 2012; the convertible is
hitting the market ahead of the hardtop coupe. The rear wheels are powered by a
400-horsepower, twin-turbo 4.4-liter V-8 e ...