In today’s video I give detailed tour of the 2014 Volkswagen Golf TDi Clean Diesel showing the exterior, engine and interior.
In the US and Canada, the car was sold as the Volkswagen Golf when it arrived in showrooms in October 2009, dropping the “Rabbit” badge that was used for the Golf Mk5. The wagon, a restyled version of the Mk5 and the only Golf model made in Mexico, is sold in Canada as “Golf Wagon”, but in the United States retains the “Jetta SportWagen” designation (while wearing Golf front sheetmetal). North American Golfs will carry over the same engines as the Mk5 (the same 2.5L five-cylinder from the Mk5, the 2.0TDI and the 2.0T) and, while the GTI and TDI continue to offer the six-speed manual transmission, the 2.5 L will re-use the five-speed manual (automatic will be a six-speed tiptronic). The new Golf is also available in Mexico but for the time being only in the wagon configuration that is marketed as Golf Sportwagen that became available in early October replacing the Bora Sportwagen with the new Golf’s front end. Available engines for North American Golf include the 2.5 L I5 engine from the previous Mk5 Rabbit and Mk5 Jetta and the 2.0-litre TDI. GTI version features the 2.0-litre TSI.
Turbocharged Direct Injection or TDI is a design of turbodiesel engines, which feature turbocharging and cylinder-direct fuel injection, developed and produced by the Volkswagen Group. These TDI engines are widely used in all mainstream Volkswagen Group marques of passenger cars and light commercial vehicles produced by the company (particularly those sold in Europe). They are also used as marine engines – Volkswagen Marine and Volkswagen Industrial Motor applications. The TDI designation has also been used on vehicles powered by Land Rover designed diesel engines unrelated to Volkswagen AG engines. The TDI engine uses direct injection, where a fuel injector sprays atomised fuel directly into the main combustion chamber of each cylinder, rather than the pre-combustion chamber prevalent in older diesels which used indirect injection. The engine also uses forced induction by way of a turbocharger to increase the amount of air which is able to enter the engine cylinders, and most TDI engines also feature an intercooler to lower the temperature (and therefore increase the density) of the ‘charged’, or compressed air from the turbo, thereby increasing the amount of fuel that can be injected and combusted. These, in combination, allow for greater engine efficiency, and therefore greater power outputs (from a more complete combustion process compared to indirect injection), while also decreasing emissions and providing more torque than the non-turbo and non-direct injection petrol engined counterpart from VAG.Because these engines are relatively low displacement and quite compact they have a low surface area. The resulting reduced surface area of the direct injection diesel engine reduces heat losses, and thereby increases engine efficiency, at the expense of slightly increased combustion noise. A direct injection engine is also easier to start when cold, because of more efficient placing and usage of glowplugs.
Direct injection turbodiesel engines are frequent winners of various prizes in the International Engine of the Year Awards. In 1999 in particular, six out of twelve categories were won by direct injection engines: three were Volkswagen, two were BMW, and one Audi. That year the Volkswagen Group 1.2 TDI 3L beat the Toyota Prius to win “Best Fuel Economy” in its class. The TDI engine has won “Green Car of the Year award” in the years 2009 (Volkswagen Jetta 2.0 litre common-rail TDI clean diesel) and 2010 (Audi A3 TDI clean diesel) beating other various electric cars.
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