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:
Video playback
Country codes
Only DVDs with the code of the home region can
be played back; also refer to the information on
the DVD.
Playback
The video image is displayed on the front Control
Display up to ...
Safety
Neither the Insurance Institute for Highway Safety nor the National Highway
Traffic Safety Administration has tested the 2007 X3. Standard safety features
include four-wheel-disc antilock brakes, ...
Important parts of the engine compartment
1. Expansion tank for coolant,
2. Washer fluid filler neck for headlamp cleaning system and window
washer system,
3. Jump-starting connection,
4. Fluid filler neck for e ...