Audi A5 owners manual page 198

text version of content this owner's manual page from owners manual to the vehicle Audi A5, year of production 2007:

document_0900452a8179700c.book Seite 196 Donnerstag, 22. März 2007 10:19 10 196 Intelligent technology Intelligent technology Electronic stabilisation program (ESP) The anti-lock brake system (ABS), the electronic differential lock (EDL) and the traction control system (ASR) are all integrated into General notes the electronic stabilisation program. The electronic stabilisation program increases the car's How the system works stability on the road. The ESP control unit processes data from the three integrated systems. It also processes addition al inputs provided by other high- precision sensors. These register the vehicle's rotation about the vertical axis (yaw rate), lateral acceleration, brake pressure and steering wheel angle. The system uses the steering wheel angle and road speed to calcu- late the changes of direction intended by the driver, and constantly compares them with the actual behaviour of the vehicle. If the desired course is not being maintained (for instance, if the car is Fig. 203 Without MMI: starting to skid), then the ESP compensates automatically by Centre console with braking the appropriate wheel. ESP switch The forces acting on the braked wheel effectively bring the car back to a stable condition. If the car is oversteering (rear wheels losing grip first) the brake application is concentrated on the outside front wheel; if the car is understeering (front wheels losing grip first), ESP brakes the inside rear wheel. This automatic brake application is accompanied by characteristic noises. The ESP works in conjunction with the ABS ⇒ page 197. If a malfunction should occur in the ABS, the ESP will also be out of Fig. 204 Centre action. console with ESP Switching on switch The ESP is switched on automatically when the engine is started The ESP is designed to enhance the control over the vehicle in crit-and performs a self-test routine. As soon as this routine is complete, ical handling situations, such as when accelerating and cornering. the system switches back to normal operating mode. You can press It reduces the tendency to skid under all road conditions and the button ⇒ fig. 203 or ⇒ fig. 204 to switch on the ESP or traction improves the stability and roadholding of the vehicle. The system control system (ASR) if they have been switched off. The message works at all speeds. ESP/ASR on will appear briefly in the display.

owners manual Audi A5

owners manual Audi A5 - year of production: 2007 - Audi A5 owners manual EN