If after removing the nail you find that the tire has been punctured, reinsert the nail to mark the puncture site. Then replace the wheel immediately and have the tire repaired. Check the tires regularly for damage such as cuts or bulges, especially on the sidewalls. Remove the wheels periodically and remove all dirt from the outer and inner surfaces. Inspect the wheel rims for corrosion or other damage. Light alloy wheels are often damaged by hitting the curb when braking, dents may appear. Very often, due to serious damage, there is no choice but to replace the wheel with a new one.
When installing new tires, they need to be balanced, but due to tire wear or loss of balancing weights attached to the wheel rim, a new balancing may be required. If tires are not balanced, they wear out faster, the same applies to steering and suspension components. Wheel imbalance is usually accompanied by vibration, especially at a certain speed (usually around 100 km/h). If such vibration is felt only through the steering, then it is likely that balancing is necessary only for the front wheels. If the entire car vibrates, then the rear wheels may be unbalanced. Wheel balancing should be done in a car repair shop.
1. Tread depth - visual welding.
Tyres fitted at the vehicle manufacturer have wear indicator strips (B). They are visible when the tread groove depth is reduced to 1.6 mm. The position of the strips is marked with a triangle (A) on the sidewall of the tyre.
2. Tread depth - manual check.
Another way to monitor tread wear is to use a simple and inexpensive device known as a "Tread Depth Indicator."
3. Checking tire pressure.
Check the tire pressure regularly, when the tires are cold. Do not adjust the tire pressure immediately after driving, as this will give an incorrect result. The tire pressure values are given in the Specification.