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Old 01-02-2008, 01:36 PM   #3
AVANTI R5
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BMW’s competence in diesel technology:

A story of success since 1983.

The performance and fuel economy offered by new BMW Advanced Diesel with BluePerformance is a further example of the exceptional potential this engine concept has to offer. In recent years BMW has worked more thoroughly and consistently than any other manufacturer worldwide to promote and further the development of its EfficientDynamics strategy. As a result, BMW has consistently enhanced the benefits and attractiveness of diesel technology, increasing engine output (performance), while reducing fuel consumption and emissions.

Through their unique motoring refinement and smoothness – a feature which was thought to be impossible with a diesel engine – BMW’s diesel engines stand out among the competition, setting the industry standard for diesel engine technology today.

The story of success of BMW’s diesel engines is characterized by numerous milestones in technical development, dating back to 1983. Back then BMW presented the first inline-six diesel in the history of the company, with maximum output of 85 kW/115 hp and peak torque of 210 Newton-metres/155 lb-ft.

The BMW 524td that featured this engine was acknowledged as the fastest diesel of its time and was the last BMW diesel model to be sold in the US.

In the years to come BMW’s engine development specialists enhanced a wide range of innovations, ensuring their alignment with series production standards, increasing power and performance, reducing fuel consumption and emissions in the process. In 1987, for example, BMW introduced DDE Digital Diesel Electronics followed three years later by BMW’s first diesel engine with an oxidation catalyst.

BMW diesel engines:

Making a unique contribution to The Ultimate Driving Machine.

Right from the start BMW’s engine development specialists recognized the potential of the diesel in enhancing motoring efficiency. They focused on the unique performance characteristics offered by the diesel in order to provide a new concept of The Ultimate Driving Machine. Above all, the development specialists used the performance of the diesel engine to develop superior torque from low engine speeds.

As a result, the BMW diesel was soon able to offer its unique sporting character – in everyday driving situations, as well as on the race track. Indeed, it was this performance and reliability which made a BMW 320d the superior winner of the 24 Hours of Nürburgring as early as in 1998.

In the same year BMW presented its first diesel engine with direct fuel injection ensuring even greater spontaneity in the development of power. In the process, the precise dosage of fuel helped to reduce fuel consumption and optimize combustion in the interest of even greater smoothness and refinement. Ultimately, given these qualities, the BMW diesel was appropriately prepared for the luxury performance class, with the first V8 diesel engine featuring direct fuel injection, which made its debut in the BMW 7 Series luxury sedan in 1999.

Milestones in progress:
Common-rail direct fuel injection, Variable Twin Turbo Technology, maintenance-free diesel particulates filter, BluePerformance.

In the years that followed, BMW made significant – perhaps revolutionary – progress in the areas of injection technology and diesel turbocharging: As early as 2001, the second generation of common-rail fuel injection pumped fuel into the combustion chambers at a pressure of up to 1,600 bar. In 2004, the BMW 535d became the first car to feature an inline-six diesel with Variable Twin Turbo Technology.

BMW also introduced the second generation of the diesel particulates filter now featured as standard in all of the diesel models from Germany’s premium manufacturer. The exhaust gas-cleaning unit is positioned directly on the exhaust manifold itself in order to ensure optimum efficiency very quickly and smoothly. The particulates filter does not require any maintenance and regenerates itself by incinerating the diesel particles. This filtering function is performed at all engine speeds and under all loads, without any reduction of engine power or increase in fuel consumption.

BMW’s current range comprises no less than seven diesel engines, three four-cylinder models, a six-cylinder model and a V8. Both the six- and four-cylinder engines have aluminum crankcases helping to significantly reduce the weight of these engines. A traditional handicap of the diesel engine, which adds weight due to the use of a cast iron crankcase (a much heavier material than aluminium) has nearly been phased out completely. The reduction of weight enhances the car’s agility and, as a result, the sporting character of BMW’s diesel models.

Comparing the first six-cylinder BMW diesels from 1983 with the most powerful diesel engines of today, one can easily appreciate the progress made. Consider the following facts and figures:

Maximum output of the inline-six engine is up 135 percent, maximum torque is up an even more impressive 170 percent. And despite this immense increase in power and muscle, average fuel consumption of the 3.0-liter engine featuring Variable Twin Turbo Technology is 20 percent lower than diesel engines of 1983. At the same time, exhaust emissions have been reduced dramatically, thanks to several new technologies. Indeed, a BMW diesel in the 2008 model year generates only 1 percent of the particulate emissions originally contained in the exhaust gas of a 1983 diesel model.

The world’s most sporting inline-six diesel.

Ready for the USA.

Despite these impressive facts and figures, BMW is continuing to upgrade the diesel engine to an even higher standard, and BMW Advanced Diesel with BluePerformance marks the next stage of development. This innovative technology now also fulfills US market demands in terms of power, performance, running smoothness, efficiency and emission limits.

Both the 335d and the X5 xDrive35d will be launched in all 50 US states in the fall of 2008. Pricing will be announced closer to launch time.
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