BMW_N45
BMW N45
Reciprocating internal combustion engine
The BMW N45 is a naturally aspirated four-cylinder petrol engine which replaced the BMW N40 and was produced from 2004-2011.[1] It was produced alongside the BMW N46 engine and only sold in several countries, where vehicle taxes favoured small-displacement engines.
The N45 is based on the N46, however it does not have balance shafts or Valvetronic (variable valve lift).[2] As per the N42 and N46, the N45 has double-VANOS (variable valve timing).[1] In 2007, the N45 was updated, which was called the N45N.
In 2007, the N45's successor - the BMW N43 - was introduced. However, the direct-injected N43 was not sold in countries with high-sulfur fuel, so the N45 continued to be produced alongside the N43. The N45 was phased out as new generation vehicles were released with the turbocharged BMW N13 four-cylinder engine.