Maintenance (Tire Air Pressure)
The vehicle weight causes a flattening on the tire contact area. When the tires roll, this produces pressure deformations all around the running surfaces and on the entire belt assembly. Low pressure produces higher pressure deformations causing a stronger heat effect and a greater roll resistance. This results in greater wear and a higher safety risk.
Example: specified standard pressure on cold tires depending on load capacity.
| Air pressure (bar) | Air pressure (%) | Mileage (%) |
|---|---|---|
| 2.3 | 100 | 100 |
| 1.9 | 80 | 85 |
| 1.4 | 60 | 60 |
| 1.0 | 40 | 25 |
An air pressure that is too high causes increased center wear and poor driving comfort. We recommend to always maintain the air pressure specified by the manufacturer.
Diagram 1
Tread depth throughout mileage for FWD vehicles and V tires
P - Tread Depth
S - Distance
1 - Front Axle
2 - Rear Axle
Diagram 2:
Tread depth throughout mileage for AWD vehicles and V tires
P - Tread Depth
S - Distance
1 - Front Axle
2 - Rear Axle
The diagrams displayed are not generally valid.
They should merely show the wear characteristics on the front and rear axle as well as the wear characteristics on FWD and AWD vehicles.
Depending on the operating conditions and suspension, the attainable mileages can vary considerably.
It can be seen in diagrams 1 and 2, that more tread is worn down during a specific mileage on tires that have full tread than on tires that have been driven extensively. The total service life cannot be concluded after the first 5, 000 km, since the wear curve is not linear.
On FWD vehicles, the front tires must also carry the outweighing component of the side and braking power besides the steering and traction power. Because of this load, the front tires wear out considerably faster than the rear tires on FWD vehicles. Even wear on all the tires is achieved by rotating the front and rear wheels regularly. Wheels, Rotating:
The air pressure data can be found in the sticker attached in the vehicle. If the sticker is not present, it must be ordered via the Parts Information using the VIN. Refer to Parts Information for the replacement part numbers.