Tires, Bringing To Mounting Temperature

Warm up cold tires to the minimum mounting temperature of 21 °C (69.8 °F).

Warm the tires in the Heat Cabinet:VAS6851  if necessary

Courtesy of AUDI OF AMERICA, LLC

• For injury-free mounting, the upper sidewall and the upper bead inside must be minimum 21 °C (69.8 °F).
• The internal temperature is called the core temperature.
• Rubber is a poor heat conductor, and for this reason, a cold tire must be within a temperature-controlled environment for a sufficient amount of time until the inner rubber layers have warmed up to at least 21 °C (69.8 °F).
• The tire surface temperature during the warm-up phase is not a measure the inside temperature.
• So that the cold tires warm up as quickly as possible, never stack them one on top of the other; store them separated from each other so that the warm air can "circulate" around them.
• Never use a room heater or a hot air gun to warm up tires because the surface temperature will heat up very quickly to a critical temperature.
• To prevent damage, only warm water or warm air (maximum 50 °C (122 °F)) can be used to warm up a tire!
• If cold tires (below 0 °C (32 °F)) are brought into a warm room (above 0 °C (32 °F)), a layer of ice will start to form on the tires. This layer of ice means that humidity in the warm air is condensing on the tire.
• Once the layer of frost starts to melt, condensation will build up. Wipe up the water with a rag so that the warming up process will not be slowed down by evaporation chill.

Warm-Up Time:

Warm Tires Up to at Least 21 °C (69.8 °F) in the Heat Cabinet:VAS6851  .

Courtesy of AUDI OF AMERICA, LLC

• Using the example of a room temperature of at least 19 °C (66.2 °F) and a tire temperature of 0 °C (32 °F) or higher, the tires should be stored for at least two hours at minimum 19 °C (66.2 °F).
• If the room temperature is minimum 19 °C (66.2 °F) and the tire temperature is below 0 °C (32 °F), then the tires should be stored for at least 2.5 hours at a minimum room temperature of 19 °C (66.2 °F).

Recommendations:

Warm Tires Up to at Least 21 °C (69.8 °F) in the Heat Cabinet:VAS6851  .

Courtesy of AUDI OF AMERICA, LLC

• if possible, let the tires stand in the workshop for one day before mounting them
• store the tires as high as possible on an insulated surface, pallet or something similar
• Position the tires so that they can be "surrounded" by the warm air
• Wipe off the sweat
• Never heat the tires with a room heater or a hot air gun!