2019 MERCEDES-BENZ C CLASS traction control

and one-half times aswell onthe governmenttesttrack as a tire graded100.
Therelative performance of tires depends uponthe actual conditions oftheir use, however,andmay depart significantly fromthe norm duetovariations in driving habits, service practices anddifferences inroadcharacteristics and climateconditions.
Tractiongrade
\nDANGERRisk of accident duetoinade‐quate traction
The tractiongrade assignedtothis tire isbased onstraight-ahead braking tractiontests, and does not include either accelera‐tion, cornering,hydroplaning or peak tractioncharacteristics.
Always adaptyour drivingstyle anddrive at a speedtosuitthe prevailingtraffic andweather conditions.
NOTEDamagetothe drivetrain fromwheelspin
Avoid wheelspin.
The traction grades – from highesttolowest –are AA,A,B and C. Those gradesrepresentthetire's abilitytostop onwet pavement as meas‐ured under controlled conditions on specifiedgovernmenttestsurfaces made of asphalt andconcrete.
Temperaturegrade
\nWARNINGRisk of accident from tireoverheating and tirefailure
Thetemperature gradeforthis tire is estab‐lishedfor a tirethat is properly inflated andnotoverloaded. Excessive speed, underinfla‐tion, orexcessive loading, either separatelyor in combination, can causeexcessive heatbuild-up and possible tirefailure.
Observetherecommended tire pres‐sures andregularlycheckthe tire pres‐
sure of all tires includingthe sparewheel.
Adjustthe tire pressure as necessary.
Thetemperature grades are A (the highest), Band C. Theyrepresentthe tire'sresistancetothegeneration of heat and its abilitytodissipateheat whentested under controlled conditions ona specified indoor laboratorytestwheel. Sus‐tained hightemperature can causethe materialofthe tiretodegenerate andreduce tire life, andexcessivetemperature can leadtosudden tirefailure. Grade C correspondstoa level of per‐formance which all passenger car tires mustmeet undertherequirements ofthe US Depart‐ment ofTransportation.
DOT,TireIdentificationNumber (TIN)
US tireregulationsstipulatethateverytire man‐ufacturer orretreader mustimprint a TIN in oronthe sidewall of each tire produced.
404Wheels and tires

Tires
Display messagesPossible causes/consequences andPPSolutions
Check Tire Pressure Soon*Canada only:
The tire pressure losswarning system has detected a significant loss in pressure.
\nWARNINGRisk of an accident duetoinsufficient tire pressure
Tirepressuresthat aretoo low posethefollowing hazards:
RThe tires may burst, especially asthe load andvehicle speed increase.
RThe tires maywearexcessively and/or unevenly,which may greatly impair tire traction.
RThe drivingcharacteristics, aswell assteering and braking, may be greatly impaired.
You couldthen lose control ofthevehicle.
Observetherecommended tire pressure.
Adjustthe tire pressure if necessary.
Stopthevehicle, paying attentiontoroad and traffic conditions.
Checkthe tire pressure (page 392) andthe tires.
Whenthe tire pressure is correct,restartthe tire pressure losswarning system (page 398).
466Display messages andwarning/indicator lamps

Display messagesPossible causes/consequences andPPSolutions
RThe tires maywearexcessively and/or unevenly, which may greatly impair tire traction.
RThe drivingcharacteristics, aswell assteering and braking, may be greatly impaired.
You couldthen lose control ofthevehicle.
Observetherecommended tire pressure.
Adjustthe tire pressure if necessary.
Stopthevehicle, paying attentiontoroad and traffic conditions.
Checkthe tire pressure (page 392) andthe tires.
w
Please Correct Tire Pres-sure
*The tire pressure istoo low in at least one ofthe tires, orthe tire pressure difference betweenthe wheels istoogreat.
Checkthe tire pressure and add air, if necessary.
Whenthe tire pressure is correct,restartthe tire pressure monitoring system (page 397).
w
Tire Press. Monitor Cur-rently Unavailable
*There is interference from a powerfulradio signal source. As aresult, no signals fromthe tire pressure sensor arereceived. The tire pressure monitoring system istemporarily unavailable.
Drive on.The tire pressure monitoring systemrestarts automatically as soon asthe cause has beenrectified.
468Display messages andwarning/indicator lamps

Tires
Warning/indicator lampPossible causes/consequences andPPSolutions
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Tirepressure monitoringsystemwarning lamp lightsup
Theyellow tire pressure monitoring systemwarning lamp (pressure loss/malfunction) is lit.
The tire pressure monitoring system has detected tire pressure loss in at least one ofthe tires.
\nWARNINGRisk of an accident duetoinsufficient tire pressure
Tirepressuresthat aretoo low posethefollowing hazards:
RThe tires may burst, especially asthe load andvehicle speed increase.
RThe tires maywearexcessively and/or unevenly,which may greatly impair tire traction.
RThe drivingcharacteristics, aswell assteering and braking, may be greatly impaired.
You couldthen lose control ofthevehicle.
Observetherecommended tire pressure.
Adjustthe tire pressure if necessary.
Stopthevehicle, paying attentiontoroad and traffic conditions.
Checkthe tire pressure andthe tires.
w
Theyellow tire pressure monitoring systemwarning lamp (pressure loss/malfunction)flashesfor approximatelyoneminute andthenremains lit.
The tire pressuremonitoring system is defective.
490Display messages andwarning/indicator lamps

Flat tire ................................................370Installing ..............................................419Load index ........................................... 406Load-bearing capacity ......................... 406Maximum tire load .............................. 405Maximum tire pressure ....................... 406MOExtended tires ................................370Noise ...................................................390Notes on installing ...............................411Overview of tire labeling ......................403Removing .............................................41 8Replacing ......................................411,41 5Restartingthe tire pressure losswarning system ................................... 398Restartingthe tire pressure monitor‐ing system ...........................................397Rotating ...............................................414Selection ..............................................411Snowchains ........................................ 391Speedrating ........................................ 406Storing .................................................414Temperature grade .............................. 403Tireand Loading Information placard.............................................................399Tirepressure (notes) ........................... 392
Tirepressure losswarning system(function) ............................................. 398Tirepressure monitoring system(function) ............................................. 395Tirepressuretable .............................. 393TireQuality Grading ............................. 403Tiresize designation ............................406TIREFIT kit ............................................371Tractiongrade .....................................403Treadwear grade .................................403Unusual handlingcharacteristics ........ 390
ToolseeVehicletool kit
TopTether.................................................. 56
Total distance.......................................... 232Displaying ............................................ 232
Touch Control.......................................... 255On-board computer ............................. 228Operating ............................................ 255Settingthe sensitivity .......................... 256
Touchpad.................................................. 256Activating/deactivating haptic oper‐ationfeedback .................................... 258Operating ............................................ 256
Readingthe handwritingrecognitionaloud ................................................... 257Selecting astation and track ...............258Settingthe sensitivity .......................... 257Switching on/off ................................. 256
Tow-bar system.......................................225
Tow-starting............................................. 386
Towingaway............................................ 382
TowingeyeInstalling .............................................. 385Storage location ..................................385
Towing methods...................................... 381
TrackSelecting (audio mode) ....................... 333
Tractiongrade......................................... 403
Traffic information.................................. 293Displayingthe traffic map ...................294Displaying traffic incidents .................. 295Extending a LiveTraffic Informationsubscription ......................................... 294Issuing hazardwarnings ...................... 295LiveTraffic Information ........................ 294Overview ............................................. 293
Index525