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Audi launching particulate filters on TDI models

9 September 2003

Audi AG announced it will be launching diesel particulate filters (DPF) on all Audi model series with TDI (turbo direct injection) engines. Two prototypes fitted with DPF systems will be shown at the 2003 Frankfurt Motor Show: A8 3.0 TDI and A4 2.0 TDI. Filters on Audi TDI models will be available as an optional extra feature. Filters on Audi models will utilize both the catalyzed filter and the fuel additive DPF technologies.

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The new Audi A8 3.0 TDI—to be launched in the first half of 2004—is a luxury saloon car meeting Euro 4 (2005) emission standards. The A8 3.0 TDI is powered by a 233 hp, 6-cylinder powerplant, which is the first production diesel engine to have piezo unit injectors. The A8 3.0 TDI has quattro permanent four-wheel drive and 6-speed tiptronic as standard.

The second DPF-fitted prototype to be shown in Frankfurt—the A4 2.0 TDI—is powered by a new two-liter, 4-cylinder diesel engine.

Audi (as well as most other manufacturers) will be launching particulate filters on a voluntary basis. At this time, eighteen vehicle versions with TDI engines in the Audi range—with power outputs from 61 to 233 hp (including the A8 TDI)—fully comply with Euro 4 standards without the need for particulate filters.

The DPF announcement from Audi follows those from Mercedes-Benz and GM Europe, who will offer DPF models of Opel and Vauxhall cars. Particulate filter equipped models will be also unveiled at the Frankfurt Motor Show by Volkswagen (Passat 2.0 TDI 100 kW) and BMW.

Source: Audi AG