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:
Initializing after a power failure
After a power failure during the opening or closing
process, the roof can only be operated to a
limited extent.
Initializing the system
The system can be initialized when the vehicle
is statio ...
Traffic bulletins on the map
"Traffic conditions/gray map" Active: indication
on the control display is switched to shades of
gray. This enables a better view of the traffic
bulletins. Day/night mode is not taken ...
Charging the battery
In the vehicle, only charge the battery via the
terminals in the engine compartment, with the engine switched off. ...