How does a jetta tdi engine work

TDI engines deliver remarkably high levels of torque over a wide rev range, which means incredible hauling capabilities.

More efficient combustion also means reduced fuel consumption and carbon dioxide emissions without sacrificing driving dynamics. TDI engine. What is the Volkswagen TDI engine? What makes the Volkswagen TDI engine so good? All bases covered Power on The Volkswagen TDI family boasts an impressive range of turbocharged diesel units across its entire range.

Pulling power Super practical The TDI diesel range of engines has been designed to work hard wherever they go. Ideal for all situations Wherever, whenever As comfortable on the worksite and making deliveries as they are on the open road, Volkswagen TDI engines bring a whole new dimension to turbocharged diesel engines. The boom in diesel during the s and s is in no small part due to the many refinements and advances in diesel technology that took place during this period, and the TDI engine was a significant part of this.

This means more air is packed into the combustion chambers and so more fuel can be mixed with it, delivering more power for a given amount of fuel.

Non-turbocharged diesel engines were typically economical but low on power; since first arriving in the late s, turbocharged diesels gave a much-needed power boost while still retaining the all-important fuel economy.

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. The Volkswagen Newsroom is an open platform and offers comprehensive search options to all users.

If you would like to be kept informed about our press releases and stories you can also subscribe to our media information and e-mail newsletters. The specified fuel consumption and emission data have been determined according to the measurement procedures prescribed by law. Since 1st September , certain new vehicles are already being type-approved according to the Worldwide Harmonized Light Vehicles Test Procedure WLTP , a more realistic test procedure for measuring fuel consumption and CO2 emissions.

Owing to the more realistic test conditions, the fuel consumption and CO2 emissions measured according to the WLTP will, in many cases, be higher than those measured according to the NEDC.

We are currently still required by law to state the NEDC figures. It is possible to specify the WLTP figures voluntarily in addition until such time as this is required by law. In cases where the NEDC figures are specified as value ranges, these do not refer to a particular individual vehicle and do not constitute part of the sales offering. They are intended exclusively as a means of comparison between different vehicle types.

Additional equipment and accessories e. Direct diesel injection TDI On an engine with direct diesel injection, the fuel is injected directly into the combustion chamber at a pressure which sometimes exceeds 2, bar. Press releases. Clean and smooth-running — the 2. Thanks to sophisticated twin dosing technology in the exhaust gas system, it undercuts the Euro 6d emission standard limits while also running quietly and smoothly.

Read on. Since , only SCR exhaust gas treatment systems have been used in Volkswagen models with diesel engines. SCR selective catalytic reduction technology significantly reduces nitrogen oxides in the exhaust gas. Adblue is injected selectively upstream of two SCR catalytic converters which are arranged in series. The system is used in the new Passat 2. Volkswagen receives go-ahead from the Federal Motor Transport Authority for the modification of models with the 1.

The technical solutions for 2. Implementation can therefore soon begin on the first of the vehicles of the third and final engine size. The vehicle keepers will be notified in succession over the coming weeks. All affected customers can then book their vehicle in for the modification at an authorised workshop at a time of their choosing.

The software update can now be promptly carried out on the first vehicles of the second affected engine-size category. The owners of these models are being successively informed and can then make an early appointment with an authorised workshop to have the update done.

Volkswagen announces preliminary approval of 2.