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Valvetronic system of the BMW N52 engine

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.


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.

See also[edit]


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