When to replace tires

You must replace tires when the tread depth falls below 1.6 mm, which is the legal limit. Please consider that safe driving in wet and snowy weather conditions is affected by the tread depth, the pattern design and the rubber compound of the tread of your tires.
On wet or snow-covered roads braking performance will progressively decline with lower tread depths. On wet roads there is an additional increased risk of aquaplaning with fading tread depths. Therefore, check your tires regularly, reduce your speed on wet and snowy roads and consider replacing your tires in good time.
All tires (including spare tires) more than ten years old should be removed from service and replaced with new tires.
Verify the physical age of any car tire by examining the markings on the tire sidewall following the “DOT” symbol.