The trim levels and options can make shopping confusing, so we are here to help. Read on to see which trim is the right fit for you and your lifestyle. The differences are found under the hood. As turbocharging technology improved, power and torque outputs continued to rise, eventually resulting in performance diesels that could rival petrol cars.
Traditionally both petrol and diesel engines used indirect injection, where fuel was injected outside the cylinder, a system that was a hangover from when cars used carburetors.
Direct injection uses more sophisticated injectors that are electronically-operated so that the amount of fuel and the timing of the injections can be precisely controlled and the injections can be made at much higher pressures. This increased level of control means the right amount of fuel can be injected depending on the driving situation, improving efficiency and power. Other technologies such as CRT particulate filters and catalytic converters burn soot and reduce particulate matter, carbon monoxide and hydrocarbons by as much as 90 percent.
You can solve this problem with a bigger engine — or you can solve it with a turbocharger — as in the TDI. Driven by the exhaust gases, it squeezes air more tightly into the cylinders.
The fuel has to mix swiftly with the compressed air in the cylinder. Our advanced diesel engines are much cleaner than older engines. One important factor is their diesel particulate filters DPF , which are very effective in cutting emissions , trapping even the finest soot particles that are produced as the engine burns diesel fuel.
The result is a cleaner environment as less pollution enters the atmosphere. The latest generation of filters operate without additives. This makes them maintenance -free for a long time: an initial inspection is not usually carried out until after 90, miles. Their lifespan is dependent on factors such as fuel quality, driving style, use and oil consumption. The filter uses a catalytic coating containing precious metals. Passive regeneration converts the particulate matter contained in the catalytic converter into CO2.
This makes them maintenance -free for an exceptionally long time: an initial inspection is usually carried out only after , km. The filter's lifespan is dependent on factors such as fuel quality, driving style, use and oil consumption. Our current 3. The name of the engine derives from its compact shape - six cylinders, three to a side, angled in the shape of a 'V'. Drawing on the virtues of the outgoing unit, the V6 3. The result is a significant gain in performance, with the time taken to accelerate from 0 to 62 mph clocking in at 7.
Brake energy recuperation saves and stores the energy that would normally be lost during braking and uses it for starting and acceleration. Another new feature is the absence of a dipstick, with engine oil levels now shown electronically on the instrument panel. TDI Diesel. Super-efficient diesel engines for power with economy. Why drive a TDI?
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