Basically, everything we experience so in everyday life and company, is supported in any way by the law and controlled. So even for vehicles. The use of a vehicle and road traffic is regulated in the road traffic Act, it is also licensing laws and laws pertaining to the nature of the vehicle. You may find that Teng Yue can contribute to your knowledge. Also is how much profile to keep a tire has what the tire air pressure should be how long approximately tyres should be driven, and where the latter more represents a directive instead of a law governed by laws. When a tire was used five years (assuming one has here a distinction between summer and winter tyres and changed them accordingly), you should replace him, which means that you should buy new tires.
Here, one can distinguish between tire, retreaded tires and new tyres. When choosing which tires to buy now, you should not forget the optical aspect and select E.g. the tires that fit best with the existing steel or alloy wheels. In addition, the profile has at least 1.6 mm to be. Should the tires do not have this profile can, do not purchase, this strength is allowed nothing and therefore you blooms a penalty if you get caught by the police. A matter of self-interest should always make sure also, that the tire pressure suits and has the appropriate pressure. Are the tires under an incorrect air pressure under operation, this can quickly lead to problems, damage to the steel or alloy wheels may be caused in the Schwerstfall. Last, you can save fuel also if you regularly checks tire pressure or check and picks it up.