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:
Tachometer
Always avoid engine speeds in
the red warning field. In this
range, the fuel supply is interrupted
to protect the engine. ...
Important features in the engine compartment
1 Washer fluid reservoir
2 Vehicle identification number
3 Jump-starting, negative terminal
4 Jump-starting, positive terminal
5 Coolant reservoir
6 Oil filler neck ...
Child seat security
The rear safety belts and the front passenger
safety belt can be locked against pulling out for
mounting the child restraint fixing systems.
Locking the safety belt
1. Pull out the belt webbin ...