338 Important safety notes Useful information load or speed increases. There is a risk of an accident. You should never reduce the pressure of warm tyres. Observe the specified tyre pres- sure. These Operating Instructions describe all the models and standard and optional equipment of your vehicle that were available at the time of going to print. Country-specific differences are possible. Bear in mind that your vehicle may not be equipped with all the functions described. This also applies to safety-relevant systems and functions. Read the information on qualified specialist workshops ( Y page 30).
Check the specified tyre pressures regularly when the tyres are cold, at least every two weeks and before long journeys. The tyre pressure in tyres on the same axle must always be the same. R If the tyre pressures are too low, this leads to an excessive build up of heat in the tyres, increased tyre wear, a deterioration in driv- ing stability and increased fuel consump- tion. Important safety notes Operating and road safety General notes R If the tyre pressures are too high, this leads to an increased braking distance, a deteri- oration in tyre traction and increased tyre wear. Tyres are of particular importance to the oper- ating and road safety of the vehicle.
For this reason, check the tyre pressures, tyre tread and tyre condition on a regular basis. A tyre dealer or a qualified specialist work- shop will be able to provide further informa- tion on: Wheels and tyres R Valve caps on the tyre valves protect the valve cores from moisture and dirt. For this reason, always screw the valve caps tightly onto the tyre valves. R In the event of repeated pressure loss from the tyres, exterior damage or leaking tyre valves may be the cause. Check the tyre pressures regularly. R tyre load-bearing capacity (LI L oad I ndex) R tyre speed rating R tyre age R causes and consequences of tyre wear R Further important information on tyre pres- sures ( Y page 340).
R measures to be taken in the event of tyre damage R Observe the tyre pressure table ( Y page 342). R types of tyre for specific regions, areas of operation or conditions of vehicle use Tyre tread R interchangeability of tyres, etc. G WARNING Insufficient tyre tread will reduce tyre trac- tion. The tyre is no longer able to dissipate water. This means that on wet road surfaces, the risk of aquaplaning increases, in particular where speed is not adapted to suit the driving conditions. There is a risk of accident. If the tyre pressure is too high or too low, tyres may exhibit different levels of wear at differ- ent locations on the tyre tread.
Thus, you should regularly check the tread depth and Tyre pressure G WARNING The tyre temperature and pressure increase when the vehicle is in motion. Reducing the pressure of warm tyres leads to a tyre pres- sure that is too low when the tyres have cooled. If the tyre pressure is too low, it may cause the tyre to burst, especially when the