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Home >> Audi >> 2021 >> A4 Quattro Premium Plus, 2.0L Eng VIN B >> Repair and Diagnosis (Single Page) >> Suspension >> Wheels & Tire System >> Wheels, Tires And Wheel Alignment (Wheel And Tire Guide General Information) >> 44 Wheels, Tires And Wheel Alignment >> Tire Information >> Run-Flat Tire, Seal Inside-Technology, Structure

Run-Flat Tire, Seal Inside-Technology, Structure

CAUTION:

It is mandatory for run-flat tires to have a tire pressure monitoring system in the vehicle. Refer to TIRE PRESSURE MONITORING SYSTEM .

Fig 1: Overview Of Tire Construction
GWWA44-10428Courtesy of AUDI OF AMERICA, LLC
  1. Shell
  2. Belt Edge
  3. Self-Sealing

    Layer of sealant material is only inside the running surface.

  4. Nylon Layer
  5. Top Layer
NOTE:

It is not recommended to use a mix of different tire types meaning run-flat and "normal" tires.

Mobility Tires

CAUTION:

The sealant is not intended to be a permanent tire repair after a puncture has happened.