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Tire pressure control: Notes

Many types of tire damage is indicated by a loss of tire pressure. Tire pressure control warns the driver when tire pressure is lost on one or more  wheels. This can also prevent preliminary damage to a tire. Tire pressure control is a system for monitoring the tire pressure when driving. It is currently available in the USA (legal requirement) and as optional equipment (SA2VB) in Canada. Tire pressure control will also be a legal requirement in Europe and other markets in future.

NOTE: Tire pressure control does not mean that the driver does not need to check the tire pressure regularly.
Initialization of the tire pressure monitoring system must be triggered following each change in tire inflation pressure as well as after every tire change. This stores the particular tire pressure as a setpoint value.
When changing tires also remember to observe the mandatory vehicle immobility period of at least 8 minutes  prior to starting the initialization routine.
NOTE: As of F15, the function tire pressure control is integrated in the Dynamic Stability Control (DSC) for the first time. The remote control receiver receives the radio signals from the wheel electronics.
Fig 1: Tire Pressure Monitor Operation Diagram
G10093103Courtesy of BMW OF NORTH AMERICA, INC.
Item Explanation
1 Wheel electronics system, front left
2 Wheel electronics system, front right
3 Wheel electronics system, rear right
4 Wheel electronics system, rear left
5 Remote control receiver on the LIN bus