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 in the rear
Ventilation in the rear
▷ Thumbwheel for opening and closing the
vents continuously, arrow 1.
▷ Thumbwheel to vary the temperature, arrow
2.
Toward blue: colder.
Toward red: warm ...
Rear
Opening
Press on the cover.
Emptying
Take out the insert.
Lighter
Push in the lighter.
The lighter can be removed as soon as it pops
back out.
Danger of burns
Only hold the hot lighter ...
Malfunction
A Check Control message is displayed.
Adaptive light control is malfunctioning or has
failed. Have the system checked as soon as possible. ...