Ultimate Safety Superior Control – Zung Fu Selective Tyres Series For any purchase of a set of four tyres, you will enjoy a free flat tyre repair service Tips on Tyre Maintenance Tyre is the only element of contact between the road and your vehicle. Its quality directly affects driving stability and safety of your vehicle. Choosing suitable and quality tyres can give you, your family, and your valuable Mercedes-Benz the best protection. Tyres are subject to wear and tear every day. For example, the surface of a tyre may become hardened under strong sunlight environment. Oil, acid and other carbon chemicals may also erode the surface of the tyre. We therefore recommend you to replace each tyre for every two years in average. If wear and tear of the tyre reaches the wear indicator mark, please replace your tyre immediately as its griping power and water repellent qualities have been lowered dramatically which could affect safety. You are advised to check the air pressure of your vehicle's tyres and spare tyre every month. If any tyres loses its air pressure faster than normal, it is necessary to identify the cause especially before a long journey to ensure safety. For more details