Volkswagen Launches All-new 7-Speed DSG Gearbox
Today Volkswagen announced that it will debut its much anticipated second-generation DSG twin-clutch gearbox in the current fifth generation Golf and Golf Plus as of February 2008. Since its inception in 2002, the DSG gearbox has featured six gears and the latest evolution will add a seventh gear. With over 25 percent of Touran owners opting for the DSG gearbox, around 1 million units have been sold since 2002.
Volkswagen claims that the new "transversely mounted" gearbox is revolutionary as it boosts efficiency and is more compact and lighter than the current six-speed version. The most notable difference is that instead of using oiled clutches, the new gearbox will use clutches that run "dry."
When the seven-speed DSG hits the market in February it will be linked to the 1.4-litre 122 bhp TSI petrol engine. Compared to the manual gearbox the seven-speed DSG will cut carbon dioxide emissions by 10 g/km and boost fuel economy by 3 mpg. The gearbox will also be available in the 1.9-litre 105 bhp turbodiesel model.
With the addition of a seventh gear, lower gears have been "more closely spaced meaning, in-gear acceleration is improved to aid overtaking manoeuvres, while the higher gears are lengthened to reduce loading on the engine and maximise economy." Volkswagen insists that the the seven-speed DSG gearbox will not replace the six-speed model, but that it will merely be available as an additional option.
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Press Release
The latest evolution of Volkswagen’s pioneering DSG twin-clutch gearbox, now featuring seven gears, greater efficiency and a more compact design is set to make its debut in the new year.
The new transversely mounted seven-speed DSG gearbox is revolutionary. It distances itself from the existing six-speed DSG gearbox, which uses a pair of clutches immersed in oil, by adopting a pair of dry clutches. This not only saves considerable weight and improves the efficiency of the system but also makes the new gearbox more compact.
Available in addition to, rather than replacing, the existing DSG gearbox the new seven-speed DSG system is designed to operate under moderate power and torque loadings. From launch the new gearbox will be available linked to the new 1.4-litre TSI 122 PS engine.
In the Golf hatchback, compared with the six-speed manual version, the new seven-speed DSG brings a 10 g/km CO2 saving (down from 149 g/km in the manual to 139) and a fuel economy improvement of over 3 mpg (combined 44.8 mpg for manual and 47.9 for seven-speed DSG). It is also possible to combine this gearbox with the 1.9-litre TDI diesel unit with Diesel Particulate Filter.
With the addition of an extra ratio the new gearbox allows the seven-speed DSG system to deliver the seemingly contradictory virtues of greater performance combined with greater economy. The lower gears are more closely spaced, meaning in-gear acceleration is improved to aid overtaking manoeuvres, while the higher gears are lengthened to reduce loading on the engine and maximise economy.
As with the six-speed DSG gearbox, of which over a million have been produced since launch, the new seven-speed system features a hill-hold function to aid starts when the vehicle is on an incline.
The new seven-speed gearbox will make its debut in the UK in February and is now open for ordering at any Volkswagen Retailer. Prices will start at £15,982 when applied to the Golf S 1.4-litre TSI 122 PS.
The bestseller shifts up a gear. Following sales of around 1 million units, Volkswagen's intelligent DSG automatic gearbox is now not only available with six, but also with seven gears. The first 7-speed DSG is now available for the Golf and Golf Plus with the 1.4 TSI and 1.9 TDI engines. This represents a milestone in the gearbox strategy of the Volkswagen Group.
It is the values of efficiency, temperament and sportiness that make the DSG such a lasting success. Even today, the installation rate of the intelligent automatic is 25 percent in the Touran. Volkswagen will initially be offering the 7-speed DSG in the Golf and Golf Plus, with prices starting at 1,750 euro.
The new 7-speed automatic gearbox is based on two premieres: Firstly, it is the first DSG for front-traverse installation. Secondly, it is the first with clutches that are not immersed in oil, but which run "dry". This allows the latest Volkswagen DSG to achieve an even greater level of efficiency. The maximum torque that can be transmitted is up to 250 newton-meters.
The new unit will initially start series production in the Golf and Golf Plus, and is available for the 1.4 TSI engine (90 kW), previously only available with a manual gearbox, and for the 1.9 TDI engine (77 kW). A hill-start assist system is included in the price with both of these engines. This holds the vehicle still by temporarily "freezing" the brake pressure when the footbrake is released. And the efficient fuel consumption of a diesel engine means that the new 7-speed DSG can save you real money. The fuel consumption figures for the Golf / Golf Plus 1.9 TDI are 0.7 litres per 100 km lower than they are with the 6-speed DSG.
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