Volkswagen Tdi

Is the 2009 Volkswagen Jetta TDI a better value than a similarly sized gasoline model? With diesel fuel costing $1 to $1.50 more per gallon than gasoline, plus the cost premium of the TDI model, is the Jetta TDI a better value than a gasoline engine model? I know the hybrids have similar mileage ratings, but I'm not sold on the long term viability of their technology. Has anyone done a "true cost to own" analysis of the Jetta TDI? I can't seem to find that model at Edmunds. All great answers... Thanks! I'm located in upstate new york. The station down the street was selling diesel today for $2.97/gal. Regular was $1.99/gal. I have been researching the same. I am very interested in the TDI's. Living in Europe we have been driving TDI's for a decade, the mileage is great and now the diesels of today are very clean. I noticed that the price of diesel in the states was higher than gas, and I took this into consideration. Even with the higher price "Now" for me in the long run it would still be a worthwhile investment. However what happened in Europe when the TDI first came out was that everyone started switching to TDI cars because they were so much more fuel efficient. This created more demand for diesel, and diesel went up in price. The government noticed a drop in revenue from gasoline sales and increase the taxes on diesel fuel. Then they said diesel pollute more, so another tax, know diesel pollute less so they are going to another tax. 2 years ago you almost had to special order a gasoline engine, because everyone wanted a diesel. Now the taxes are set up that it really does not matter. The cost and savings are from which vehicle is cheaper to maintain, and it's resale value. Diesel are stronger engines, so if I do allot of heavy hauling the life span is longer. I would pick a diesel over a Hybrid any day. I do not see where adding a set of heavy batteries and a electric motor is going to be long term cost effective. Sooner or later the batteries will have to be replaced and sooner or later the electric motor will also need to be replaced. Best of luck.

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The New Audi Q7 4.2 Tdi

Under the hood the new Audi Q7 4.2 TDI has one of the most powerful V8 diesel engines that the luxury unit of Volkswagen maker of VW Corrado parts has ever built. The eight-cylinder unit which is already equipped in the A8 luxury saloon records a displacement of 4.2 liters and produces 240 kW or 326 bhp and 760 Nm of torque. This provides the Audi Q7 4.2 TDI with the performance that is likened to that of a sports car. It can sprint from 0 to 100 km/h in 6.4 seconds and reaches a top speed of 236 km/h which are new records.

The new Audi Q7 4.2TDI delivers its power through the six-speed tiptronic automatic transmission to a sporty tuned Quattro driveline that divides the propulsive force in the ratio of 40:60 between the front and rear wheels under normal driving conditions. The adaptive air suspension of the Audi is standard on top diesel model. It also resolves the classic conflict of interests by combining dynamic handling with riding comfort similar to the feel of a luxury class vehicle.

The Audi Q7 4.2 TDI, the concentrated power of the great eight-cylinder diesel unit provides it with the versatility of true sport car. Starting from the time that the Q7 was introduced it has already set new standards in the SUV segment. In addition the comfort and convenience equipped in the Q7 4.2 TDI makes it a leader in its class.

The leather design package provides the interior with a feel of luxury. The electrically operated tailgate allows for easy loading. The Audi Q7 also possess a new technical features which is the optional Audi lane assist system which warns the driver through slight vibrations in the steering wheel specially when it detects that the driver is crossing the wrong lane.

The engine with its tremendous power…

Just like any type of engines in the Audi Q7 range, the eight-cylinder diesel power pack belongs to the V-engine family. The 4.2 liter TDI delivers an impressive 760 Nm of torque to the crankshaft, a figure that remains constant between 1,800 and 2,500 rpm. The driver will also be able to enjoy great power reserves at any engine speed. At 3,750 rpm the V8 can produce an output of 240 kW or 326 bhp.

The Driveline…

The power for the Audi Q7 4.2 TDI is transported through the six-speed tiptronic automatic transmission. The DSP or the Dynamic Shift Program takes control of the gear shifts and adapts itself to the driver’s style of driving as well as to the condition of the road. There is a special sports program that supports a specific dynamic driving style but still enables the driver to intervene in the procedure in two ways: via the shift gate for the selector lever or via the optional paddles on the steering wheel. The tiptronic was made for high torque and therefore does not need to be supported to interact with the V8 diesel engine.

Suspension with Sporty Performance…

The suspension of the Audi Q7 4.2 TDI completes the dynamic personality of the vehicle. It is equally capable on various road conditions driving safety and comfort plus handling characteristics set the standards.

The Audi Q7 4.2 TDI has an adaptive air suspension which allows the driver to choose from any of three settings ranging from dynamic, comfort and automatic, to sporty and firm up to extremely comfortable. The basic suspension layout of the Audi Q7 4.2 TDI stands out because of its high level of style. The four wheels are independently mounted on double wishbones with most of the axle components made of aluminum.

The Audi Q7 4.2 TDI is equipped with sporty 18-inch alloy wheels with size 255/55 tires. The four brake discs are internally ventilated and have a size of 350 mm in diameter at the front and 358 mm at the rear. Six pistons in the front brake calipers apply brake pressure to each of the discs---a concept derived from the world of sports car.

Luxurious equipment…

The Audi Q7 4.2 TDI is equipped with a range of standard features that reflects sophistication. The leather design package with its choice of inlays in aluminum or three types of wood and seat upholstery in Cricket leather together with electrically heated front seats, on-board computer, a cruise control system, a multifunction steering wheel and the much-praised operating system MMI which boost comfort and convenience for the driver.

The Q7 4.2 TDI is also equipped with an advanced parking system with a camera that monitors the rear of the car. The optional Audi adaptive cruise control is radar-based system that incorporates active distance control. The Audi side assist monitors the blind spot through the use of radar technology and warns the driver of a vehicle approaching from behind.

About the Author

Benjamin Hudson works as a supervisor at one of the top engineering firms in the business district of Louisiana. He is also a freelance journalist and has passion for anything automotive.