BMW 3 Owners & Service Manuals

BMW 3: Concept, General information, Safety information

BMW 3 Series G20 (2018-2025) Owners Manual / Wheels and tires / Tire Pressure Monitor TPM / Concept, General information, Safety information

Concept

The system monitors tire inflation pressure in the four mounted tires. The system warns you if there is a loss of pressure in one or more tires.

General information

Sensors in the tire valves measure the tire inflation pressure and tire temperature.

The system detects the mounted tires automatically.

The system displays the specified nominal pressure values on the Control Display and compares these values to the actual tire pressure values.

If tires are being used that are not specified on the tire inflation pressure details on the vehicle, such as tires with special approval, the system needs to be actively reset. The system will then take over the actual tire inflation pressures as the target pressures.

When operating the system, also note the additional information found in the Tire inflation pressure.

Safety information

Warning The display of the target pressures is not a substitute for the tire inflation pressure details on the vehicle. Incorrect entries in the tire settings can lead to incorrect target tire inflation pressure values. In this case, it cannot be guaranteed that the notification of a loss of tire inflation pressure will be reliable. There is a risk of injury and risk of damage to property. Ensure that the tire sizes of the mounted tires are displayed correctly and match the details on the tires and on the vehicle.

Functional requirements

The following conditions must be met for the system; otherwise, reliable flagging of a loss of tire inflation pressure is not assured:

  • After each tire or wheel change, the system detects and updates the mounted tires and displays them after a short trip on the Control Display.

    Enter the information about the mounted tires in the tire settings when the system does not automatically detect the tires.

  • TPM does not activate until after driving for a few minutes:
    • After a tire or wheel replacement.
    • Reset, for tires without special approval.
    • After changing the tire setting.
  • For tires with special approval:
    • After a tire or wheel replacement, a reset was performed with the correct tire inflation pressure.
    • After the tire inflation pressure was adjusted to a new value, a reset was performed.
  • Wheels with TPM wheel electronics.

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