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:
The concept
When the low beams are switched on, this system
automatically switches the high beams on
and off. The procedure is controlled by a sensor
on the front of the interior rearview mirror. The
assi ...
The concept
The tire inflation pressure is measured in the
four mounted tires. The system notifies you if
there is a significant loss of pressure in one or
more tires. ...
Eight-speed automatic transmission: sporty, fuel-efficient, and unique in a
compact car
The standard six-speed manual petrol and diesel versions of the new BMW
1-Series offer efficient power transmission and precise gear changes.
The BMW 1-Series is also the only compact car also ava ...