Environmental Leadership in Canada: Volkswagen's TDI Clean Diesel Technology is one of the Lowest Emission Diesels in the World



    WOLFSBURG, Germany and MONTREAL, Jan. 15 /CNW/ - The 2009 Jetta is a
prime example of the art of German engineering. No other car developed in
Europe can claim a similar success in Canada. Along with gasoline versions,
since last September a 140 HP (103 kW) strong TDI Clean Diesel motor has been
offered in the Jetta Sedan and Wagon models across Canada. It is one of the
most fuel efficient and cleanest engines being marketed in North America, and
helps Volkswagen continue its leadership in Canada with Diesel products that
has continued for over 30 years.
    The 2009 Jetta's new four-cylinder turbocharged Diesel is so fuel
efficient (4.8 litres per 100 km on the highway, 6.8 l / 100 km in the city
with a 6-speed manual transmission) that the 2009 Jetta Wagon TDI Clean Diesel
has been named by Natural Resources Canada as the "Most Fuel-Efficient Station
Wagon" for sale in Canada in 2009.
    The fact is that from the very first day they are driven, cars like these
Volkswagens make a contribution toward reducing noxious emissions and also the
cost of driving. Compared to a similarly powered gasoline engine, fuel economy
on the Jetta TDI Clean Diesel and the Jetta Wagon TDI Clean Diesel is at least
31% better. That helps the environment immediately.
    A key aspect of the technical design of the TDI Clean Diesel is its
ability to reduce nitrogen oxides. In the case of the four-cylinder common
rail 2.0 litre TDI powertrain available in both the Jetta TDI Clean Diesel and
Jetta Wagon TDI Clean Diesel models already on sale in Canada, the engineers
from Wolfsburg at Volkswagen AG achieved this goal by means of internal engine
modifications.
    With the 2009 Touareg TDI Clean Diesel, Sport Utility Vehicle (SUV),
Volkswagen uses a Selective Catalytic Reduction (SCR) catalytic converter. For
the 2009 Jetta TDI Clean Diesels, a nitrogen oxide (NOx) storage catalytic
converter is used instead. The NOx converter technology is different from the
SCR catalytic converter, but due to the lower weight of the Jetta it leads to
the same desired effect: up to 90 percent lower NOx emissions and impressive
fulfillment of Canada and the U.S.'s Tier 2 BIN5 emission standards for both
the 2009 Touareg TDI Clean Diesel and the Jetta TDI Clean Diesel models.

    Here are the details of the 2009 Jetta's TDI Clean Diesel technology:

    Exhaust Gas Recirculation Reduces Nitrogen Oxides

    Diesel motors are more economical than ever before. But Diesel fuel
creates a problem that needed to be addressed: although high combustion
chamber temperatures promote fuel economy, at the same time they also favor
the generation of nitrogen oxides (NOx).
    Within certain limits, this problem can be resolved by optimized
combustion chamber geometries and extremely precise injection processes at
extremely high pressures, as Volkswagen has proven. However, in dealing with
emissions it is also necessary to limit combustion temperatures and reduce the
concentration of oxygen with which the nitrogen reacts to produce nitrogen
oxides. Both goals can be accomplished by external exhaust gas recirculation
in the combustion chamber. The gas is taken from the exhaust system and is
cooled on the way to the combustion chamber. These actions can reduce
temperature-dependent nitrogen oxide emissions by up to 60 percent in the
ideal case.

    NOx Storage Catalytic Converter Eliminates Rest of the Nitrogen Oxides

    The rest is treated by the NOx storage catalytic converter. It soaks up
the nitrogen oxides like a sponge with very high efficiency. Similar to the
particulate filter, it is cleaned regularly and without the customer ever
noticing. The engine management switches over to an operating mode with richer
combustion for a few seconds to accomplish this.
    The NOx storage catalytic converter is intended for use with diesel fuel
that is extremely low in sulfur (sulfur content less than 15 parts per million
= ppm); otherwise it can lose its efficiency due to sulfate formation. In
Canada, the large scale introduction of low sulfur diesel fuel for consumers
began at the end of 2007 at service stations across the country.
    This much is certain: The Jetta TDI Clean Diesel is extremely economical
yet very agile at the same time. It accelerates from 0 to 100 km/h in just 8.x
seconds and attains a top speed of 204 km/h. This contrasts nicely with a very
favorable highway fuel economy of 4.8 litres per 100 km and a range of over
1,100 kilometres on one fill of its 55 litre fuel tank during highway driving.
    And the word is out. Dr. Jens Hadler, Director of Volkswagen Engine
Development had this to say about Volkswagen's TDI Clean Diesel technology:
    "Many car drivers have been looking forward to a super clean Diesel like
our TDI. I think this engine will help the Diesel make a breakthrough because
it consumes extremely little fuel and at the same time can cover enormous
distances on one full tank."
    With this solid support, Volkswagen will continue its leadership in
Diesel product offerings in Canada that it has built up over 30 years.

    
    About Volkswagen Canada:
    ------------------------
    
    Founded in 1952, Volkswagen Canada is headquartered in Ajax, Ontario, and
is part of Volkswagen Group Canada Inc., a subsidiary of Volkswagen AG,
headquartered in Wolfsburg, Germany. Volkswagen is one of the world's largest
producers of passenger cars and is Europe's largest automaker.
    Volkswagen offers the City Golf, City Jetta, Rabbit, GTI, New Beetle, New
Beetle Convertible, Jetta Sedan, Jetta TDI Clean Diesel, GLI, Jetta Wagon,
Jetta Wagon TDI Clean Diesel, Eos, Passat Sedan, Passat CC, Passat Wagon,
Tiguan, Routan, Touareg and Touareg TDI Clean Diesel through 130 independent
Canadian Dealers. Visit Volkswagen Canada online at www.vw.ca.





For further information:

For further information: Peter Viney, (905) 428-5858, Peter.Viney@vw.ca

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