2006 Audi R10 TDI

The new Audi R10 TDI has immediately written motorsport history in its first outing: Dindo Capello (Italy), Tom Kristensen (Denmark) and Allan McNish(Scotland) won the 12-hour race at Sebring (USA) achieving the first ever victory of a Diesel powered sportscar. Tom Kristensen became the first driver to win America’s most famous endurance race for a fourth time, achieving another record after his record seventh Le Mans victory from last year.

30 degrees Celsius in the shade, high humidity and asphalt temperatures reaching up to 43 degrees, caused especially difficult circumstances on the Florida track which is one of the most demanding in the world. Allan McNish had already shown the potential of the 650-hp V12 TDI engine with a record-breaking pole position time in qualifying. Because the heat exchanger had to be replaced after the morning warm-up, Dindo Capello was forced to start the number two R10 TDI from the pit-lane starting his chase from the back of the field.

It took Capello only half an hour before he had moved from 35th and last position to second just behind the sister car of Frank Biela. Shortly before the end of the second hour, the Italian took the lead, which the number two R10 TDI kept until the finish. Only changing the fuel filter and two loose wheel nuts caused unscheduled pit-stops.

The number one Audi R10 TDI that had clearly led the race for the first two hours did not reach the finish. The car driven by Frank Biela (Germany), Emanuele Pirro (Italy) and Marco Werner (Germany) was withdrawn just before one-third distance due to an overheated engine.

The reason: Shortly after the start of the race, the telemetry system of car number one, that transmits the data from the car to the pits, had stopped working. As a consequence, Audi Sport’s engine technicians had no data at all for the whole distance. When Marco Werner reported high water temperatures via radio during the fourth hour of the race, the second placed R10 TDI was called into the pits. The team discovered radiators completely blocked by tyre rubber. After cleaning the radiators, the temperatures sank immediately. However, Team Audi Sport North America decided to precautionary withdraw the second placed R10 TDI from the race because the engine had been running with significantly high temperatures for an extended period.