LEMON Manuals: Even more car manuals for everyone
Home >> Audi >> 2016 >> S5 Prestige, 2D Convertible >> Repair and Diagnosis >> External Pages >> Different car >> Section 637 (Wheels & Tire - General Information) >> 44 Wheels, Tires, Wheel Alignment >> Tire Damage >> Mounting Damage

Mounting Damage

WARNING: This page does not describe the selected car, but rather 13 other vehicles, including the 2017 Audi SQ5, 2017 Audi Q5, 2016 Audi SQ5, 2016 Audi Q5, and 2015 Audi SQ5. However, it is still accessible from the selected car via links, so may be relevant.

Bundle broken during tire inflation.

Modern radial car tires are mounted only on safety rims. These have a hump -1- running along the shoulders.

Fig 1: Identifying Mounting Damage
GWWA44-10040Courtesy of AUDI OF AMERICA, LLC

1 - Hump (H2)

2 - Inner bead seat

3 - Rim

4 - Wheel disc

5 - Outer bead seat

The hump prevents the tire from being pressed out of the bead seat during travel with insufficient tire pressure.

When the tire is inflated, the tire bead may not slip completely over the outer rim hump.

In this case, there is the danger that the bead bundle will be overstretched if the tire pressure is too high and the steel wires rupture partially or completely. Torn bundles are often not detectable from outside.

CAUTION:
  • Tires with damaged bead bundles are not seated safely and securely on the rim. Such tires are a safety risk!
  • In addition, there is the danger that a partially broken bundle tears during continued operation and the tire suddenly tears open. If the bead bundle breaks during inflation, the carcass will also be destroyed.