2008 BMW M3 Owner's Manual - Page 72

Technology for driving comfort and safety When driving resumes, the initialization is continued automatically. Do not initialize the system while snow chains are attached.< 1. Start the engine, but do not start driving. 2. Press the button for approx. 4 seconds until the warning lamp in the instrument cluster lights up yellow. Warning lamp, refer to Indication of a flat tire on page 70. Tire Pressure Monitor TPM* The concept TPM checks the inflation pressures of the four mounted tires. The system notifies you if there is a significant loss of pressure in one or more tires. Functional requirement In order to assure the reliable reporting of a flat tire, the system must be reset while all tire inflation pressures are correct. Always use wheels with TPM electronics. Otherwise, the system may malfunction. Each time a tire inflation pressure has been corrected or a wheel or tire has been changed, reset the system.< 3. Start to drive. Initialization is completed while the car is moving, without any feedback. System limitations TPM cannot warn you in advance of sudden severe tire damage caused by outside influences.< The system does not work correctly if it has not been reset; for example, a flat tire may be indicated even though the tire inflation pressures are correct. The system is inactive and cannot indicate a flat tire if a wheel without TPM electronics has been mounted, or if TPM is temporarily malfunctioning due to other systems or devices using the same radio frequency. Indication of a flat tire The warning lamps come on in yellow and red. In addition, an acoustic signal sounds. There is a flat tire or substantial loss of tire pressure. 1. Reduce your speed and carefully stop the car. Avoid sudden braking and steering maneuvers. 2. Identify the damaged tire. To do so, check the tire pressure using the M Mobility System, refer to Producing the tire inflation pressure on page 132. 3. Repair the flat tire with the M Mobility System, refer to page 132. Resetting the system Each time a tire inflation pressure has been corrected or a wheel or tire has been changed, reset the system.< 1. Start the engine, but do not start driving. 2. Press the button for approx. 4 seconds until the warning lamp in the instrument cluster lights up yellow. Warning lamp, refer to Malfunction The warning lamps come on in yellow. The Flat Tire Monitor has a malfunction or has failed. Have the system checked as soon as possible. 70 Online Edition for Part no. 01 41 0 014 960 - © 02/08 BMW AG