Valvetronic

The Valvetronic system is a BMW variable valve lift system[1] which, in combination with variable valve timing, allows infinite adjustment of the intake valve timing and duration.[2] The system claims to improve fuel economy and emissions, and negates the need for a throttle body in regular use.

This article is about the BMW engine valve system. For valve eletronics, see vacuum tube.
Not to be confused with Valvematic.
Valvetronic system of the BMW N52 engine

History

First introduced by BMW on the 316ti compact in 2001,[2] Valvetronic has since been added to many of BMW's engines. The first application of this technology in a turbocharged engine was the N55 engine.

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See also

References
  1. "Valvetronic". BMW Technology Guide. Munich, Germany: BMW AG. Retrieved 2011-05-01.
  2. USautoparts. "Valvetronic". Archived from the original on 30 May 2012. Retrieved 11 May 2013.
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