The
BMW N20 is a turbocharged four-cylinder petrol engine which replaced the
N53 (or
BMW N52 in some markets) and was produced from 2011-2017. Although the N20 is a four-cylinder engine, it is considered a replacement for the naturally aspirated six-cylinder N52/N53 because it powers equivalent models, producing similar horsepower to the N52/N53 with greater low-rpm torque and better efficiency.
[1]
The N20 features a twin-scroll turbocharger,
double-VANOS (variable valve timing),
Valvetronic (variable valve lift),
direct injection,
automatic stop-start[2] and an electric water pump. The N20 was sold alongside the smaller displacement
BMW N13 turbocharged four-cylinder engine. The N20 was placed in
Wards Top 10 Engines in 2012.
[3]
In 2014, the N20 began to be replaced by its successor, the
BMW B48.