Attention: The tire inflation pressure monitoring system does not replace the need to periodically perform a routine tire inflation pressure check. This system only gives a low tire pressure warning, but does not inflate the tires. Incorrect tire inflation pressures can increase the risk of tire damage resulting in loss of vehicle control, as well as injury to the driver and passengers. Insufficient air pressure in tires leads to increased fuel consumption, reduced tire life, as well as poor handling and reduced vehicle safety. Check the condition of your tires regularly, especially when driving on bad roads or off-road.
Note: When inflating a tire, try to avoid twisting and damaging the inflation valves. Always check that the inflation head and tire valve are properly connected. With snow chains installed, the system may take longer to detect tire pressure loss.
Tire pressure reduction control is a function of the ESP system. The ESP control unit indirectly recognizes the reduction in pressure based on the calculation of the wheel speed. As soon as the distance traveled by the wheel per revolution decreases, the corresponding indicator lamp lights up in the instrument cluster "
" (see Section 13) and a beep sounds. A blinking indicator indicates a malfunction in the system.
The distance traveled by the wheel in one revolution may change in the following cases:
- at low pumping pressure:
- in case of damage to the tire or disk;
- with uneven loading of the car;
- if the wheels of one axle are loaded more than the wheels of the other axle (e.g. when towing a trailer);
- if a compact spare tire is fitted:
- if snow chains are installed;
- after changing a wheel.
After changing the tire inflation pressure or replacing at least one wheel, the system must be reset (set current normal conditions). To do this, follow these steps.
- Adjust the inflation pressure of all tires.
- Turn on the ignition.
- Click the button "
" in the center console (25 in illustration 12.1) and hold it for at least two seconds. In this case, the indicator in the button should light up. At the same time, the contents of the system memory are reset and a new calibration is started, indicated by an audible signal and then the indicator turns off. - If the alarm "
" lights up and does not go out after the system is reset, it means that there is a malfunction in the system.
Under certain conditions (sporty driving style, winter conditions, unpaved road) the system may not work or work with a delay. For trouble-free operation of the system, it should be reset every 10,000 km or once a year.