LEMON Manuals: Even more car manuals for everyone
Home >> Mini >> 2024 >> Cooper Clubman JCW ALL4 >> Repair and Diagnosis >> External Pages >> Different car >> Section 20 (Wheel And Tires - Repair (F55, F56)) >> Tires >> 36 12 005 Replacing a runflat tire or a UHP tire >> 36 10... Recommendation for heating tires before removing or installing

36 10... Recommendation for heating tires before removing or installing

WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2019 MINI Cooper, 2018 MINI Cooper, 2017 MINI Cooper, 2016 MINI Cooper, and 2015 MINI Cooper. However, it is still accessible from the selected car via links, so may be relevant.

Recommendation for heating cold tires to minimum installation temperature +15 °C:

To ensure injury-free tire fitting, in particular the upper side wall and the upper tire bead must have a temperature of at least 15 °C on the inside

To ensure easier tire installation, a temperature of 20° to 25° C is recommended.

This internal temperature is called the core temperature.

Rubber is a poor conductor of heat. For this reason, a cold tire must rest for a sufficient length of time in a warmed-up environment until the inner rubber layers have warmed up to at least 15 °C.

Rubber is a poor conductor of heat. For this reason, a cold tire must rest for a sufficient length of time in a warmed-up environment until the inner rubber layers have warmed up to at least 15 °C.

The room temperature is normally measured and read off at eye level. At 19 °C at eye level the temperature on the floor is approx. 16 °C. In other words, do not lay tires directly on a cold floor to warm up; instead, lay them at least on an insulating surface, such as a pallet, or even higher.

To ensure that cold tires absorb the heat from the ambient air as quickly as possible, they should not be stacked but rather stored individually so that they are thoroughly "immersed" in the warm ambient air.

Do not under any circumstances place tires in front of a radiant heater or a hot air blower as harmful surface temperatures are very quickly reached in this situation. Apart from heating with warm water or with warm air (max. 50°C, no hotter), there is no other way of heating a tire without damaging the tire.

If a cold tire (under 0 °C) is introduced into a warm environment (over 0 °C), a layer of frost will form immediately on the tire surface. This frost layer shows that the tire is absorbing heat intensively from its surroundings through condensation of the moisture in the air. When the frost layer has melted, condensation water forms; dry off this water with a cloth so that the subsequent warming-up process is not slowed down by latent heat.

Summary: 

Starting from a min. room temperature of 19°C: 

- Tires at initial temperature of 0 °C and higher: store for at least 2 hours

- Tires at initial temperature below 0 °C: store for at least 2.5 hours

Recommendations for heating:  Store on an insulating surface (a pallet or similar) at as high a level as possible "Upper" bead facing upwards -> Position the tires individually so that they are well "bathed" in the warm air -> Wipe off condensation water -> Do not point heaters at tires

Recommendations for heating: 

- Store on an insulating surface

- a pallet or similar

- at as high a level as possible "Upper" bead facing upwards

- Position the tires individually so that they are well "bathed" in the warm air.

- Wipe off condensation water

- Do not point heaters at tires