VW's cylinder shut off tech is a world's first for a mass-produced TSI engine

Volkswagen will introduce cylinder shut-off technology to its new 1.4-litre TSI engine from 2012.

VW is the first manufacturer to implement the fuel-saving technology in a mass-produced TSI engine, a system that shuts off two of the four cylinders under low to medium loads, between 1400 and 4000rpm.

Volkswagen claims that the EU6-compliant unit saves 0.4 litres (0.09 gallons) of fuel per 100km, rising to 0.6 litres (0.13 gallons) per 100km when combined with VW’s stop-start system.

VW also says that the benefits become more obvious when driven smoothly and slowly: “At 50 km/h, in third or fourth gear, savings amount to nearly one litre per 100km.”

If driving style is deemed by the system to be too aggressive, the shut-off functionality is automatically suppressed.

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