New additions are being made to the engine range of Audi's most successful model line. The six-cylinder 2.7-litre TDI with 132 kW (180 bhp) can now be ordered for the A4 saloon and A4 Avant. In conjunction with front-wheel drive and 6-speed manual gearbox, the A4 2.7 TDI accelerates to 100 km/h in just 8.4 seconds and rapidly on up to its top speed of 230 km/h. This ultramodern V6 with common rail direct injection and piezo injectors consumes an average of just 6.7 litres of diesel per 100 km. The 2.7 TDI in the A4 has a diesel particulate filter as standard. The basic price of this model is € 32,400 (Avant: € 34,000). The first vehicles will be supplied in January 2006.A significantly more powerful 3.0 TDI is now being offered for the A4 saloon and Avant: as in the A8 and A4 Cabriolet, this six-cylinder unit, also equipped with common rail technology and piezo injectors, delivers 171 kW (233 bhp), making it the most powerful diesel in its class. The A4 3.0 TDI quattro reaches the 100 km/h mark in just 6.8 seconds and accelerates on up to a top speed of 245 km/h. Its fuel consumption, on the other hand, remains at the low level of its 29 bhp weaker predecessor, at just 7.6 litres per 100 km. The A4 3.0 TDI, which can also be ordered with a diesel particulate filter as an option, costs € 37,600 for the saloon or € 39,200 for the Avant (in Germany).

quattro permanent four-wheel drive is now also available in conjunction with a powerful four-cylinder TDI. With its 103 kW (140 bhp), the 2.0 TDI quattro ensures driving pleasure and dynamism in all situations and is equipped as standard with a 6-speed manual gearbox and diesel particulate filter. Prices start at € 31,370 (A4 2.0 TDI quattro) and € 32,970 (A4 Avant 2.0 TDI quattro).

The 1.9 TDI with 85 kW (115 bhp) for the A4 and A4 Avant can now also be fitted with a diesel particulate filter. Prices in Germany start at € 26,970 (A4 1.9 TDI) and € 28,570 (A4 Avant 1.9 TDI).

This means that Audi now offers a diesel particulate filter as an option or as standard in Germany for its four-cylinder 1.9 and 2.0 TDI and six-cylinder 2.7 and 3.0 TDI models, in other words for the most popular diesel engine versions of the A4 model line.