Why must tire pressure be checked when the tires are cold?
Mechanics (different vehicle systems)
Explanation
To ensure that a vehicle's **tires** function correctly, it is crucial to measure their **inflation pressure** when they are **cold**. This is because, when driving, the tires heat up and the **air pressure inside them increases**.
- **Correct inflation pressure:** Tires must have the correct pressure to ensure their durability and ability to support the vehicle's weight.
- **Effect of heat:** When the tires are hot, the air inside expands, which increases the pressure. If the pressure is measured under these conditions, a higher value than the actual one will be obtained, which can lead to incorrect inflation.
Therefore, to obtain an accurate measurement and ensure that the tires are inflated correctly, it is essential to check the pressure when the tires are cold. This helps maintain the vehicle's safety and performance.
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