2023 Volvo XC40 Mild Hybrid Tires Owners Manual

Designation of dimensionsAll tyres have a dimension designation, for example: 235/55 R18 100V.

Each tyre has a certain capacity to carry a load, a load index (LI). The car’s weight determines the load capacity required of the tyres.

Each tyre can withstand a certain maximum speed. Tyre speed rating, SS (Speed Symbol), must at least correspond with the car’s top speed. The table below shows the maximum permitted speed for each speed rating (SS). The only exception to these regulations is winter tyres, where a lower speed rating may be used. If such a tyre is selected, the car must not be driven more quickly than the tyre is rated for. For example, cars with Q rating tyres must be driven at speeds not exceeding 160 km/h (100 mph). The road conditions and applicable road traffic rules determine how quickly the car can be driven, not the speed rating of the tyres.

The maximum permitted speed is specified in the table.

• Tyres must rotate in the same direction during their entire service life.
• Tyres should only be switched between front and rear positions, never between left and right-hand sides, or vice versa.
• If the tyres are fitted incorrectly, the car’s braking characteristics and capacity to force rain and slush out of the way are adversely affected.
• The tyres with the deepest tread depth should always be fitted to the rear of the car in order to reduce the risk of oversteer skidding.
• On cars with different front and rear tyre or wheel dimensions, it is not permitted to change position between front and rear wheels.
• Volvo recommends that the rear tyres do not have substantially less tread depth than the front tyres in order to reduce the risk of oversteer skidding when driving on wet roads.