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Tire Pressure Monitoring begins to "learn" the wheels after a wheel change, wheel transmitter replacement or update of the tire settings. During this process, Tire Pressure Monitoring recognizes the wheels and their locations.
The message "No monitoring, system is learning" (example) appears on the multi-purpose display. The wheel learning process takes place exclusively when the vehicle is being driven (vehicle speed above 16 mph (25 km/h)).
Tire Pressure Monitoring requires a certain amount of time to learn the wheels. During this time, the current tire pressures are not available on the multi-purpose display:
– The tire pressure warning light remains lit until all wheels have been learned.
– Lines (-.-) appear on the display of the "Tire pressure" function.
– The required pressures for cold tires (68 °F (20 °C)) are indicated under "Fill info" in the "Tire pressure" main menu.
Position and pressure information is displayed as soon as Tire Pressure Monitoring has assigned the wheels recognized as belonging to the vehicle to the correct wheel positions.
Tire pressure warnings
The tire pressure warning light on the instrument panel and a corresponding message on the multipurpose display warn about loss of pressure in two stages (yellow and red), depending on the amount of pressure loss.
Yellow warning – Inflate!
The pressure in the tire is more than 4 to 7 psi/ 0.3 to 0.5 bar / 30 to 50kPa too low. The tire pressure warning specifies the affected tire and the target tire pressure.
This tire pressure warning appears:
– for approx. 10 seconds when the vehicle is stationary and the ignition
is switched off or
– when the ignition is switched on again.
The warning can be acknowledged when the ignition is switched on.
The tire pressure warning light on the instrument panel goes out only when the tire pressure has been corrected.