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Contents Function . 4 Displays . 5 Operation . 10 Electrical components 13 System overview 17 Communication structure . 18 System calibration . 21 Diagnostics . 25 The self study programme teaches the design and function of new vehicle models, new automotive parts or new technologies. Reference Note The self study programme is not a repair manual All values given are intended as a guideline only, and refer to the software version valid at the time of publication of the SSP. For maintenance and repair work, always refer to the current technical literature. Function Function Audi lane assist helps the driver to stay in lane. A camera is used for detecting lane markers. Audi lane assist is on alert when lane markers are detected on either side of the lane in which the vehicle is driving. When the vehicle approaches a detected lane marker and is about to leave the lane in which it is driving, Audi lane assist alerts the driver by making the steering wheel vibrate. If Audi lane assist is on alert and the driver indicates before crossing a lane marker, no warning is given because the system assumes that the lane change is deliberate. The steering wheel vibrates once only in order to alert the driver when the vehicle is approaching or 398 034 crossing a detected lanema rker. A second warning is only given if the vehicle has moved a sufficient distance away from the lane marker after the first warning and subsequently approaches the lane marker again. This avoids warnings being given continuously when the vehicle is travelling in parallel with a lane marker. The system is designed for use on motorways and trunk roads. For this reason, it does not become active until the vehicle is travelling at a speed of approx. 65 kph or higher. Adverse ambient conditions, e.g. dirty or snow covered road surface, a lane being too narrow or ambiguous lane markers such as occur