To keep your tyres in good condition, check them at least once a month (preferably every two weeks), or before a long journey. You should pay particular attention to your tyres’ tread and pressure.

Note: Mercedes-Benz recommend that tyres have a tread depth of at least 2.5mm across the tyre and around the circumference.

Under-inflated tyres can overheat while over-inflated tyres can result in poor handling on the road, putting you and your passengers in danger. But ignoring your tyre pressure is also financially costly. Over- and under-inflated tyres are more at risk of damage and may need to be replaced more often. Cars with under-inflated tyres also need more fuel to maintain the same speed.

Looking after your tyres will also increase their ‘legal life’. Treads will not wear down as quickly, maintaining your tyres for longer. Keeping your tyres road worthy also helps you avoid a possible maximum penalty fine of £10,000 and 12 penalty points on your driving licence.

No. Most manufacturers advise against this now because:

• Partly worn tyres are more likely to puncture, especially in wet-weather conditions.
• Front tyre deflation is more likely. This creates an under-steer effect and may compromise your safety.

If you have to replace one tyre, then have it fitted at the rear with the tyre having the most tread depth. This will help you handle your car and give it more stability, whether or not your car is front-or rear-wheel drive.