Valvetronic
Sign in to savethumb|right|Valvetronic system of the BMW N52 engine The Valvetronic system is a BMW variable valve lift system which, in combination with VANOS, allows infinite adjustment of both intake valve timing and lift. The system claims to improve fuel economy and emissions, and negates the need for a throttle body in regular use.
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thumb|right|Valvetronic system of the BMW N52 engine The Valvetronic system is a BMW variable valve lift system which, in combination with VANOS, allows infinite adjustment of both intake valve timing and lift. The system claims to improve fuel economy and emissions, and negates the need for a throttle body in regular use.
First introduced by BMW on the 316ti compact in 2001, Valvetronic has since been added to many of BMW's engines.
Excerpted from Wikipedia’s “Valvetronic” article, available under the CC BY-SA 4.0 licence.