A prototype sets new standards
The Audi R10 TDI is the first diesel car to enter the race as the favorite – thanks to innovative technology developed and manufactured by Bosch motor sports specialists together with Audi. This sports car prototype sets new standards in technology even before the start of the race. Audi and Bosch have already made automotive history with their diesel-powered R10 TDI. Never before has a diesel car had a better chance at winning this race.

Diesel – the sports engine of the future
Five centimeters flatter and with a noticeably more pointed nose than its predecessor, the R10 TDI features significant improvements in aerodynamic properties. Many innovative details and novel structures will be put through their paces in Le Mans.

The R10 TDI is powered by an entirely new 5.5 liter, twelve-cylinder, biturbo engine. Made entirely of aluminum, this engine is highly fuel-efficient and very quiet. Its massive torque of over 1,100Nm places extreme demands on the drive train of the R10 TDI. The overall engine control is handled by the Bosch Motronic MS 14. The air and fuel supply and the ignition procedure are electronically adjusted and optimized to suit the driver’s needs.

The Motronic uses extensive sensor data to calculate the best values for every injection and ignition operation. The engine therefore always receives the ideal air-fuel mix for ignition at exactly the right moment.

The electronic control unit instantly adjusts the fuel injection to respond to changes in driving conditions. This means that fuel energy is used particularly efficiently. And higher fuel economy – which translates into less frequent refueling stops – puts the car in an excellent position to finish at the head of the field in the classic long-distance race at Le Mans.

Even the environment is a winner with this car. Due to its efficient fuel combustion, its emissions were lowered significantly. The R10 TDI is additionally fitted with two diesel particle filters.

One system to control everything
Naturally the Bosch motor sports experts will be on hand at Le Mans to support the Audi team in telemetry and systems management. Telemetry is responsible for providing a continuous data flow from the vehicle to the box. Information about coolant temperature, tire pressure, and the state of the engine and chassis is sent to a central display on the steering wheel. Bosch developed a completely new vehicle monitoring system for the R10 TDI.

TDI: Powered by experience and know-how
Bosch maintains close ties with motor sports. Since 1903, the company’s motor sports experts have been on hand at race tracks to provide professional service to their customers. In addition, Bosch engineers support automobile manufacturers and motor sports teams, from the earliest stages of prototype design until the car goes to the race track. Systems that pass muster on the track then go into production. To date, to name only a few, that includes the mechanical direct fuel injection system, halogen headlights, and the breakerless ignition system. In the R10 TDI, Bosch proves once again how extreme technical challenges can be overcome. First at the Le Mans 24 Hours... and soon in your own car too!