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Volkswagen has just unveiled cylinder deactivation technology for its 1.4-liter, four-cylinder TSI engine. This represents a world first for cylinder shutoff tech adapted for use on a four-cylinder engine.

German testing and certification company TÜV NORD Group has recognized Volkswagen for its development of the TSI engine family. The TSI engines were one of the first widespread applications of engine downsizing through direct injection and turbocharging.

Guide to Common Green Acronymns

Deciphering the new vocabulary of the green car movement can sometimes be a real head scratcher. To alleviate as much confusion as possible, we would like to present our readers with a list of common acronyms and what they mean, with plenty of links for more information. If you have some TLAs (that's three-letter acronyms) that you'd like us to add to our glossary, just let us know in the comments.

Volkswagen has apparently decided it's about time to install its latest and most powerful CNG (compressed natural gas) bifuel powertrain under the hood of the Touran, a compact MPV, as well as the Cross Touran (pictured above). The 1.4-liter TSI EcoFuel powerplant has an output of 150 horsepower and fuel consumption of 5.2l/100km (45 mpg U.S.) when running on gasoline. Driven with natural gas, the Touran uses 4.7 kg/100 km, earning a respectable 126 g/km of CO2 emissions.

Volkswagen just announced that the green badge applied to its high-mpg diesel models will also be used for a gasoline model. The Passat 1.4 TSI will get the BlueMotion badge, a move that should help the car sell in markets where low CO2 emissions matter, tax-wise, like France or the Netherlands. The BlueMotion Passat gets a gearbox with higher gear rations, a chassis thats been dropped 15 mm, a fully enclosed underbody, a closed grille and a weight reduction of 30 kg. The car not only lowers CO

Volkswagen is introducing a new 160hp version of its 1.4-liter TFSI engine. This engine and the 122hp version are replacing VW's 1.6 FSI and 2.0 FSI engines which produced 115 and 150hp, respectively. This change in the engine lineup will start in the Golf Plus, Jetta and Golf Variant versions.

Since winning the "Best New Engine of 2006" award from the International Engine of the Year committee, Volkswagen's Twincharger TSI engine has taken the 1.0 to 1.4 liter category by storm, taking the class victory last year and again for 2008. Cited reasons for the win include the engine's high power output and low gasoline consumption. Other awards have been given to the engine, including two in Japan, an Auto Environment Certificate from the ÖKO-TREND Institute for Environmental Research

Volkswagen's TSI engines were awarded the "TechnoBest" award from the 15-nation AutoBest jury in Istanbul today. One reason for the award was that these engines crank out a lot of power for the amount of fuel they consume, something the jury called a "genuine advancement." Read more of the jury's thoughts in VW's announcement after the jump. For the last few years, Europeans have been able to drive using the TSIs, but Americans will get a first taste later this summer with the release of the new

Back in April, the VW Golf 1.4L TSI won the Auto Environment Certificate from the ÖKO-TREND Institute for Environmental Research. Today, VW announced that its TSI engine technology - which is available in a variety of vehicles, including the Golf, Touran, Jetta, Golf Plus and Golf estate - won two prizes in Japan. TSI was named "Most Advanced Technology Award 2008" (a bit early, no?) from Japanese automotive journalists and "Technology of the Year" from the jury of the Japanese Automotive R

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Volkswagen debuted a concept version of their Tiguan compact SUV last November at the Los Angeles Auto Show and it looks the production version won't be changing much. Volkswagen is holding their final sign-off ride for the new vehicle in Namibia to evaluate the hot weather performance and off-road performance. Unlike some of its competitors - the Ford Escape, Saturn Vue and Toyota Highlander - the Tiguan won't offer a hybrid version, at least not at first.

Volkswagen has put out more details on their new 1.4L 121hp TSI engine that will be offered on Golfs, Jettas, Tourans and Passats. The new direct injected engine will be replacing the older 1.6L FSI port injected engine in the lineup. The turbocharged TSI gets a bump in power from 114hp to 121hp and a thirty percent bump in torque to 148 lb-ft at 1500rpm.

A little over a year ago Volkswagen introduced their TSI engine range in 138 hp and 168 hp flavors. Those two engines both had displacements of 1.4L with the output of something considerably larger. They achieved this by combining gasoline direct fuel injection with what they call twin charging. Both engines had both a turbocharger and mechanical supercharger.

Volkswagen has added a new version to their range of TSI engines as well as an updated DSG dual clutch gearbox. At the Vienna Motor Symposium they are showing a 122 hp 1.4L TSI that like it's 138 hp and 168 hp siblings uses direct fuel injection and turbocharger. Unlike the two more powerful engines, this new variant has no mechanical supercharger. The 1.4L TSI has seven percent more power and thirty percent more torque than VW's 1.6L FSI engine while consuming six percent less fuel. The TSI eng

On Tuesday, we brought you the initial details on the new VW CrossGolf, which made its debut in Paris yesterday. Autoblogger Eric Bryant snapped some pictures of the neat-looking veedub and forwarded along the official info from Volkswagen.

Autoblog's Eric Bryant checked out the new VW Touran for us in Paris, and was impressed by the fact that the MPV is available with the DSG gearbox. The slick tranny is standard equipment on vans powered by the 170 PS 1.4 TSI, and is optional on all other TSI and TDI-powered Tourans. The green-minded can opt for the Touran EcoFuel, which runs on compressed natural gas. As we reported earlier in the month, the interior of the car gets upgraded with more premium materials and nice touches like the

Volkswagen's innovative marriage of a supercharger and a turbocharger on the same 1.4-liter engine gained the automaker two prizes (one for each induction system?) at the "International Engine of the Year Awards 2006" - "Best Engine, 1-liter to 1.4-liter category", and "Best New Engine of 2006."

Volkswagen TSI engine found in Europe in the Golf GT won the "Best New Engine of 2006" award. The TSI engine combines a supercharger with a turbocharger. The engine, with a displacement of 1.4 liter, produces 170 bhp and uses 7.2l/100 km. The high specific output of the engine allows this engine to compete with engines of higher displacement (and higher fuel consumption). The TSI engine won the 1 liter to 1.4 liter category, and was picked the overall winner by the jury, made up of 61 automotive

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