Mercedes Benz GLC Class owners manual page 390

text version of content this owner's manual page from owners manual to the vehicle Mercedes GLC, year of production 2015:

388 All about wheels and tires Example: Thesafespeedonawet,snowcoveredoricy RTreadweargrade:200 road is always lower than on dry road surfa- ces. RTraction grade: AA Youshouldpayspecialattentiontoroadcon- RTemperaturegrade:A ditions when temperatures are around freez- All passenger car tires must conform to theing point. statutory safety requirements in addition toMercedes-Benz recommends a minimum these grades. tread depth of ã in (4 mm) on all four winter iTheactualvaluesfortires are vehicle-tires. Observe the legally required minimum Ypage375).Wintertirescan specific andmaydeviatefromthevaluesintiretreaddepth( the illustration. reducethebrakingdistanceonsnow-covered surfaces in comparison with summer tires. Treadwear Thebrakingdistanceisstillmuchfurtherthan The treadwear grade is a comparative ratingonsurfaces that are not icy or covered with ate ca basedonthewearrateofthetirewhentestedsnow. Take approprire when driving. under controlled conditions on a specifiedFurther information on winter tires (M+S tires) ( U.S. government course. For example, a tireYpage376). s graded 150 would wear one and one-halfTemperature retimesaswellonthegovernmenttesttrackas tia tire graded 100. GWARNING d The relative performance of tires dependsThe temperature grade for this tire is estab- anupontheactual conditions of their use, how-lished for a tire that is properly inflated and s ever, and may depart significantly from thenot overloaded. Excessive speed, underinfla- l normduetovariations in driving habits, ser-tion,orexcessiveloading,eitherseparatelyor vice practices and differences in road char-in combination, can cause excessive heat Wheeacteristics and climate. build-up and possible tire failure. Traction ThetemperaturegradesareA(thehighest),B, GWARNING and C, representing the tire's resistance to the generation of heat and its ability to dissi- The traction grade assigned to this tire ispate heat when tested under controlled con- based on straight-ahead braking tractionditions on a specified indoor laboratory test tests, and does not include acceleration, cor-wheel.Sustainedhightemperaturecancause nering, hydroplaning, or peak traction char-the material of the tire to degenerate and acteristics. reduce tire life, and excessive temperature Avoidwheelspin.Thiscanleadtodamagecan lead to sudden tire failure. The grade C ! corresponds to a level of performance which to the drive train. all passenger car tires must meet under the Thetractiongrades–fromhighesttolowest–Federal Motor Vehicle Safety Standard No. are AA, A, B and C. Those grades represent109. Grades B and A represent higher levels the tire's ability to stop on wet pavement asof performance on the laboratory test wheel measured under controlled conditions onthan the minimum required by law. specifiedgovernmenttestsurfacesofasphalt andconcrete.AtiremarkedCmayhavepoor traction performance.

owners manual Mercedes GLC

owners manual Mercedes GLC - year of production: 2015 - Mercedes Benz GLC Class owners manual EN