It's important to know what kind of tires yous take on your motorcar, thus if yous are ever faced with an agin state of affairs, y'all'll know what you lot safely can and cannot do. BMW equips the bulk of their cars with run flat tires. They practice this because it provides their customers with a few added benefits:

  • You can drive on a flat tire: The main benefit of a run-flat tire is that it allows you to go on driving—up to l miles at 50 miles per hour. This means that a person doesn't accept to get out of the car on the side of a decorated highway or try to change a tire in the nighttime.
  • More stable later a blowout: Because a run-flat tire can support the vehicle without any air pressure, steering and treatment volition remain near normal later a sudden deflation.
  • Lower vehicle weight: With no spare tire and the repair tools removed, vehicle weight is reduced.

How can you identify if you have BMW run flat tires or not? All the data you demand is on the sidewall. For BMW vehicles, what yous volition want to look for is the RSC label.

If you are on run flat tires, most manufacturers recommend replacement when they have been driven in a severely underinflated or zero pressure condition. This is because the integrity of their internal structure cannot exist confirmed.

Now if you are on standard tires, and your tire becomes damaged, it may be repaired if it meets the post-obit criteria:

  1. The tire has not been driven on when apartment.
  2. The harm is merely on the tread section of your tire (sidewall damage ruins a tire immediately).
  3. The puncture is no greater than ¼".

The proper way to have a flat tire repaired is to fill the puncture pigsty from the inside, then apply a patch on top of the repair. Do not have your tire plugged. Ever. Plug repairs do not involve taking the tire off the bike for a proper inspection. A plug is simply inserted into the punctured area, making it unreliable. Insist on a total inspection and have your tire centre demount, then inspect the interior and exterior of the tire. Only afterward a thorough inspection should a tire exist repaired.

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If the 3 criteria higher up are non met, then you lot will have to supplant the damaged tire. Don't forget to inspect the tire on the other side of the car, if that one has a depression tread depth, you volition want to at to the lowest degree supercede that one also.

Michelin recommends replacing all 4 tires at the aforementioned time, all the same if replacing only two new tires, be certain that the new tires are the same size and tire blazon as the current tires and that the dealer e'er installs the new tires on the rear axle of the vehicle when possible. If there is e'er whatsoever question to the integrity of the tire, please just supplant it! No amount of coin is worth the safety of you and your passengers.