2008 BMW 1 Series Owner's Manual - Page 86
2008 BMW 1 Series Manual
Page 86 highlights
Technology for driving comfort and safety Indication of a flat tire The warning lamps come on in yellow and red. A message appears on the Control Display. In addition, a signal sounds. There is a flat tire or substantial loss of tire pressure. 1. Cautiously reduce speed to below 50 mph/ 80 km/h. Avoid sudden braking and steering maneuvers. Do not exceed a speed of 50 mph/80 km/h. If the car is not equipped with RunFlat Tires, refer to page 207, the standard equipment by design, do not continue driving. A severe accident could result if you continue driving after a tire puncture.< 2. At the next opportunity, check the air pressure in all four tires. If all four tires are inflated to the correct pressures, the Flat Tire Monitor might not have been initialized. The system must then be initialized.< 3. In the event of complete tire pressure loss, 0 psi/0 kPa, you can estimate the distance for which you can continue driving on the basis of the following guidelines: > With a light load: 1 to 2 persons without luggage: approx. 155 miles/250 km > With a medium load: 2 persons, cargo bay full, or 4 persons without luggage: approx. 90 miles/150 km > With a full load: 4 persons, cargo bay full: approx. 30 miles/50 km Drive cautiously and do not exceed a speed of 50 mph/80 km/h, otherwise there is a risk of an accident. In the event of pressure loss, vehicle handling changes. This includes reduced tracking stability in braking, extended braking distance and altered natural steering characteristics. If unusual vibration or loud noises occur during the journey, this may be an indication that the damaged tire has finally failed. Reduce your speed and pull over as soon as 84 possible at a suitable location. Otherwise parts of the tire could come loose, resulting in an accident. Do not continue driving. Instead, contact your BMW center.< Malfunction The warning lamps come on in yellow. A message appears on the Control Display. The Flat Tire Monitor has a malfunction or has failed. Have the system checked as soon as possible. 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.< 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, such as a compact spare wheel, has been mounted, or if TPM is temporarily malfunctioning due to other systems or devices using the same radio frequency. Online Edition for Part no. 01 41 0 014 691 - © 11/07 BMW AG