1. Check your tread depth
The legal minimum tread depth for your tyres is 1.6 millimetres, measured across the central three-quarters of the tread all the way around the tyre. For your safety, it's a good idea to replace your tyres before they reach this legal limit. Regularly checking your tyres can save you from 3 penalty points and a hefty £2,500 fine for having tyres that are worn beyond the legal minimum on your vehicle.