Keep performing even when the pressure drops: runflat tyres keep you mobile even if all tyre pressure is lost. Instead of an unpleasant and unsafe roadside tyre change, you can reach home safely or drive to the next workshop for assistance.Runflat tyres are their own spares: thanks to specially reinforced side walls and additional lateral strengthening, they continue to perform their function even if all air pressure is lost. The heat-resistant rubber compound is able to withstand additional heat build-up.With runflat tyres fitted, you can continue driving for up to 150 km at a speed of up to 80 km/h without any significant loss in vehicle stability. You not only save time and stress, you are also free of the need to carry a spare tyre, saving stowage space.All driver assistants remain fully functional when driving with a loss of tyre pressure. The optional Adaptive Drive system redistributes the load to the other tyres, reducing the burden on the low-pressure tyre as much as possible.
The wheel rims of runflat tyres have special design that ensures the tyre will not detach from the rim, even on tight bends.Runflat tyres provide greater safety, more peace of mind and additional cabin space. It's not surprising that Germany's ADAC, the largest automobile club in the world, has described runflat tyres as the "first important revolution in tyre design since the invention of the pneumatic tyre."Fitted for increased safety. Tyre pressure control system (RDC). The tyre pressure control system (RDC) electronically monitors tyre pressure at all four wheels by means of sensors. Depending on model and equipment, the tyre pressure indicator enables current tyre pressure to be monitored in the Control Display or instrument panel. All new BMW automobiles have been fitted with this system as of March 2014. The right tyre pressure reduces the risk of tyre damage, thereby increasing safety. Only at the correct pressure does the tyre provide the optimum contact surface on the road, offering excellent performance for a sporty driving style as well as for avoidance or braking manoeuvres.
If the tyre pressure control system measures a critical deviation in pressure (20% below target or below the minimum pressure of 1.7 bar), it notifies the driver early on of the potential risk by means of a warning signal, as well as providing feedback on the tyre in question via the Control Display or the multifunction instrument display. The tyre pressure control system makes for long-term economy: since tyres at the correct pressure generate less rolling resistance, this has a positive impact on fuel consumption. What is more, correct tyre pressure prevents irregular wear and tear, thereby extending the tyre's service life. BMW offers all complete wheel sets including wheels with star marking and fitted with RDC sensors. Your BMW Service Partner will be glad to advise as to whether your automobile is fitted with a tyre pressure control system and which tyres best meet your requirements. In the event of a change of tyres, our experts ensure the tyre pressure control system remains in perfect working order, setting the correct tyre pressure and programming the RDC system accordingly.
Tyre pressure depends on the temperature of the tyre. If the temperature of the tyre increases, e.g. when driving or due to sunlight exposure, tyre pressure increases, too. A reduction in pressure can occur when the temperature of the tyre drops. In the case of severe reductions in temperature, this can result in a warning being issued due to the set warning limits. For this reason, tyre pressure should be checked at regular intervals at ambient temperature ("cold tyres"). As the driver of a new automobile with a tyre pressure control system, you should take care when you purchase winter tyres to ensure these are fitted with an RDC sensor. Emergency wheels are not fitted with sensors. If an emergency wheel is fitted after a drop in pressure, the warning remains in place until a new wheel is mounted that is fitted with a new sensor as required. The system cannot give previous indication of sudden tyre damage caused by external impact.View Recent Cars | Click here to order!
Tire pressure warning light on? This tech article explains how the system works and how to reset it. A rubber, flexible valve stem utilizes wheel speed. A solid aluminum stem that has a nut on the base is a TPMS sensor system The tire pressure information is used to notify you of a low tire pressure condition. If a tire loses pressure, a warning lamp is illuminated in the instrument cluster and a warning chime sounds. This is a very helpful system. If you have a tire puncture and are losing air, you will be notified, therefore allowing you to immediately pull over and reduce the damage to the tire. Any time you have a warning message related to tire pressure, immediately pull over and check all four tire pressures. If you had a low tire and repaired the problem, you will have to reset the tire pressure monitoring system. This can be done easily using the turn signal stalk or through your iDrive menu, if equipped. When checking air pressure, always use a plastic valve stem cap.
A metal one can seize onto the TPM sensor and damage it. This applies to TPMS sensor equipped vehicles. Tire pressure information for your vehicle is located in the driver door jamb on the label shown in this photo. Resetting the TPMS system using the turn signal stalk Read the entire procedure before beginning. Once read, it will be easier to follow the steps. Start your engine but keep vehicle in Park. Using the buttons on the turn signal level. Use the rocker button (green arrow) to scroll through instrument cluster until you reach the TPMS RESET menu. Once you get to the RESET screen, press the BC button on the end of the turn signal stalk once to select the RESET function. Then press and hold the BC button for about 5 seconds until a small check mark appears next to the RESET symbol. Once the check mark appears, drive you vehicle to reset the system If the system will not reset, check the TPMS system for fault codes using a BMW scan too. Resetting the TPMS system using the iDrive menu Read the entire procedure before beginning.