suddenly lose air or burst while the vehicle is in 
motion. This can cause serious accidents and fatal injuries. 
extent when driving that the tread peels off and the tyre bursts. 
tyre bursts and ripping of the tread surface and thus to a loss of control of the vehicle. 
tyres will wear prematurely and the car will not handle well. 
 
 
s pressure when the tyres are warm. 
 
NOTICE 
valve stem. This can damage the tyre valve. 
iving. 
 
Underinflated tyres will result in increased fuel consumption. 
Tread depth and wear indicators 
 
Fig. 196 Tyre tread: wear indicators. 
First read and observe the introductoryinformation and safety warnings
Tread depth 
In most countries, the minimum tread depth required by law is 1.6 mm (measured in the tread 
grooves next to the tread wear indicators); observe any differing country-specific regulations. The 
tyres should have the same tread depth, at the minimum on each axle  
Observe any country-specific legal requirements relating to the permissible minimum tread depths 
for winter and all-year tyres.