Label
RSC label on the tire sidewall.
The wheels consist of tires that are self-supporting, to a limited degree, and possibly special rims.
The support of the sidewall allows the tire to remain drivable to a restricted degree in the event of a tire inflation pressure loss.
Follow the instructions for continued driving with a flat tire.
Changing run-flat tires
For your own safety, only use run-flat tires. No spare tire is available in the case of a flat tire.
Your service center will be glad to advise you.
BMW X3 Service & Repair Manual > Body repair instructions: Reinforcement plate (bonded)
In the case of a partial replacement piece, a body component is cut at a point described in the repair
instructions.
A reinforcement plate is bonded in to ensure sufficient strength.
Observe notes on REPAIR STAGE 2.
NOTE:
The following graphics serve as general illustrations of reinf ...