228WINDSCREENWIPERSBLADESPeriodically clean the rubber partwith suitable products. We recom-mend TUTELA PROFESSIONALSC 35.Change the blades if the rubber edgeis warped or worn out. You should inany case change them approximatelyonce a year.Travelling with wornwiper blades is dangerousbecause it reduces visibil-ity in bad weather.RUBBER TUBINGFollow the Service Schedule to theletter as concerns braking, powersteering and fuel line rubber tubing.Ozone, high temperatures and longabsence of fluid in the system can infact cause the hardening and crack-ing of the pipes with possible loss offluid. A careful check is therefore es-sential.In any case, if the tyres have beenfitted for more than six years theyshould be examined by an expert whocan judge whether they are still fit foruse. Remember to check the sparetyre particularly carefully too.If a replacement is necessary, alwaysuse new tyres and avoid using onesthe origin of which you are not certainabout.The car fits tubeless tyres. Under nocircumstances use an inner tube withthese tyres.If you replace a tyre it is a good ideato change the inflation valve, too.To ensure the front and rear tyres allwear evenly, you are advised tochange the tyres over every 10-15thousand kilometres keeping them onthe same side of the car so as not toreverse the direction of rotation.Do not change the tyresover in criss-cross fashionby moving a tyre from theleft hand side of the car to the rightand vice versa.Some simple steps can reduce po-tential damage to the blades:– If the temperature falls to belowzero, make sure the rubber blade isnot frozen to the windscreen. If neces-sary, free it with a de-icing compound.