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:
Automatic Hold
The concept
This system assists the driver by automatically
setting and releasing the brake, such as when
moving in stop-and-go traffic.
The vehicle is automatically held in place when
it is s ...
An extensive range of standard and optional BMW ConnectedDrive functions.
BMW ConnectedDrive comprises all offers and technologies which connect our
vehicles, drivers and passengers, and the outside world. ConnectedDrive is
comprised of three main pillars: Convenience, ...
Six-speed manual transmission as standard
The sporty six-speed manual transmission in the new BMW 3-Series boasts an
easy and precise shifting action and optimal ratio spacing. The lightweight,
compact format and innovative, low-friction ...