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VW: Introducing cylinder deactivation technology

cylinder deactivation technology

VW will introduce another fuel-saving technology called cylinder deactivation.

Volkswagen has introduced a new cylinder deactivation technology for its 1.4 liter, 4-cylinder TSI power plant.

This announcement represents the first time a cylinder shutoff technology has been adapted to a 4-cylinder unit.

On the 1.4 liter TSI unit, 2 of the 4 cylinders are shut down when load is minimal or moderate on the engine. The deactivation can make for up to a 0.6 liter/100 km improvement in fuel-economy when coupled with a stop-start system.

Savings are even greater with certain drive modes. For example, at a constant speed of 50 km/h (28 mph) in 3rd or 4th gear, the deactivation technology can account for up to a 1.0 liter/100 km improvement in fuel-consumption.