A mileage of about 95,000 krn the 2010 BMW 523Li E60 sedan. Consumers report: automobile tire pressure monitoring system failure, tire stress loss warning method following no alarm, resulting in a broken tire.

After the pick-up: Verify the tire stress, front 210kPa, around the rear 250kPa, measured against a normal driver's door at pressures; and regular stress error is not wonderful (regular: Front 22% Pan rear 260kPa). Connection BMW ICOM A2 diagnostic tests, diagnostic effects DSC technique isn't the fault storage. By calling the function reads the RPA recording control unit DSC program.

From a practical level of view, the tire pressure reduction can be a sub-function display from the DSC management. Can be calculated from the four wheels are mounted according for the dynamic stress in the pneumatic tire rolling circumference with four speed signal all through use.

To ensure trustworthy tire failure to supply information and facts, the technique must be initialized (finding out phase) in the right tire inflation strain circumstances. Right after each correct tire inflation strain every time you modify a tire or wheel, and hung up and off the trailer, must be re-initialized. RPA study initiated in driving the car need to be divided into three studying variety: 0 ~ 110km / h; 110 ~ 190km / h; 190 ~ 250km / h. 3 mastering at the very least 1 of the state up to 80% prior to the end with the initialization discovering and effective monitoring of tire pressure reduction of pressure.

By monitoring the recording in the RPA from the show is usually found in the automobile appeared 49288km and 50920km tire pressure loss of strain alarms, the amount of kilometers now is 52607km. Recent evidence motor vehicle tire strain monitoring program is still working correctly, certainly, cannot be completely confirmed record alone car tire pressure monitoring method is now normal, after all, and with greater than 2000 kilometers. We decided to carry out a street check Digiprog 3 V4.88 to test. When testing the front wheel to change the tire strain to 220kPa, the rear wheels to alter to 270kPa, then as a result of idrive initialize the tire strain monitoring. CID displays "activation phase will end when driving, then will recognize the tire failure, states: active state." Just after a quick test contact connection BMW ICOM A2 management unit functions, able to initialize the problem observed in true time for you to read the RPA,

Then test the tire stress loss of stress, and no matter if the police can observe the RPA.

Before the first from the 4 vehicle street test the motor vehicle to change the tire pressure for the standard stress, conventional front wheel: 220kPa; Rear: 260kPa. Then carried via iDrive tire strain initialization settings. RPA initialized study driving selection 0 ~ 110km / h and discovering variety 110 ~ 190km / h consistent percentage change. Once the vehicle is traveling about 44km, when the scope of understanding 0.one,ten km / h the percentage reached 80%, CID tire strain standing is proven as "Started." Then we then adjusted to your correct strain 150kPa left rear tire, continued to travel about one hundred meters, the tire pressure reduction of strain alarms.

Speak louder than words, the Car Diagnostic Tools test proved that the tire pressure monitoring method is normal, the consumer has no objection towards the check outcomes, accept our stage of see.

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