2019 MERCEDES-BENZ C CLASS Owners Manual

Display messagesPossible causes/consequences andPPSolutions
Check Engine Oil Level(Add 1 quart)NOTEEngine damagecausedbydriving with insufficient engine oil
Avoid long journeyswith insufficient engine oil.
When nextrefueling, add 1quart of engine oil.
Top up engine oil (page 355).
Notes on engine oil (page 427).

Display messagesPossible causes/consequences andPPSolutions
Transmission MalfunctionStop
Pullover andstopthevehicle safely as soon as possible, paying attentiontoroad and traffic conditions.
Switchthe transmissiontoposition].
Consult aqualified specialistworkshop.
N Permanently Active Riskof Rolling Away
*Whilethevehicle isrolling or whileyou are driving,the transmission has been shiftedtoposition\\.
Depressthe brake pedaltostop and, whenthevehicle isstationary,shiftthe transmissiontoposition].
Tocontinueyour journey,shiftthe transmissiontoposition[or^.
Stop Vehicle Leave EngineRunning Wait TransmissionCooling
*The transmission isoverheating. Pullingawaymay betemporarily impaired or not possible.
Pullover andstopthevehicle safely as soon as possible, paying attentiontoroad and traffic conditions. Do notcontinue driving under any circumstances.
Leavethe enginerunning.
Wait untilthe display message disappears before pullingaway.
To Deselect P or N,Depress Brake and StartEngine
*You haveattemptedtoshiftthe transmission out of position]or\\into another transmission position.
Depressthe brake pedal.
Startthe engine.
Apply Brake to Shift from'P'
*You haveattemptedtoshiftthe transmission out of position]and into another transmission position.
Depressthe brake pedal.
Service Required Do NotShift Gears Visit Dealer
*The transmission is malfunctioning. The transmission position can no longer be shifted.
464Display messages andwarning/indicator lamps

Display messagesPossible causes/consequences andPPSolutions
Whenthe transmission is in position[, consult aqualified specialistworkshop and do notchangethe trans‐mission position.
For allother transmission positions, parkthevehicle safely.
Consult aqualified specialistworkshop or breakdown service.
Reversing Not PossibleService Required
*The transmission is malfunctioning.Reversegear can no longer be engaged.
Visit aqualified specialistworkshop.
Only Shift to 'P' when Vehi-cle is Stationary
*The transmission can only be shiftedtoposition]whenthevehicle isstationary.
Driver's Door Open &Transmission Not in P Riskof Vehicle Rolling Away
*The driver's door is not fully closed andthe transmission is in position^,\\or[.
Shiftthe transmissiontoposition]whenyou parkthevehicle.
To Engage Transmiss. Posi-tion R First Depress theBrake
*You havetriedtoswitchtotransmission position^.
Depressthe brake pedal.
Shiftthe transmissiontoposition^.
Auxiliary Battery Malfunc-tion
*The auxiliarybatteryforthe transmission is no longer beingcharged.
Visit aqualified specialistworkshop.
Untilthen, manually setthe transmissiontoposition]beforeyou switchoffthe engine.
Before leavingthevehicle, applythe electric parking brake.
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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).
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Display messagesPossible causes/consequences andPPSolutions
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Warning Tire Malfunction
*The tire pressure in one or more tires has dropped suddenly. The wheel position is displayed.
\nWARNINGRisk of an accident from driving withaflat tire
Flat tires are dangerous inthefollowingways:
RThe tires canoverheat and cause afire.
RThe drivingcharacteristics, aswell assteering and braking, may be greatly impaired.
You couldthen lose control ofthevehicle.
Do not drive with aflat tire.
Observethe notes onflat tires.
Notes onflat tires (page370).
Stopthevehicle, paying attentiontoroad and traffic conditions.
Checkthe tires.
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Check Tires
*The tire pressure in one or more tires has dropped significantly.The wheel position is displayed.
\nWARNINGRisk of an accident duetoinsufficient tire pressure
Tirepressuresthat aretoo low posethefollowing hazards:
RThe tires may burst, especially asthe load andvehicle speed increase.
Display messages andwarning/indicator lamps467

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.
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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).
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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.
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Display messagesPossible causes/consequences andPPSolutions
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Wheel Sensor(s) Missing
*The tire pressure sensor signal is missing from one or more tire(s). The pressure ofthe affected tire is not dis‐played.
Havethe defective tire pressure sensorreplaced at aqualified specialistworkshop.
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Tire Pressure Monitor Inop-erative No Wheel Sensors
*The wheels installed do not havesuitable tire pressure sensors. The tire pressure monitoring system is deactivated.
Install wheels with suitable tire pressure sensors.
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Tire Press. Monitor Inopera-tive
*The tire pressure monitoring system is defective.
\nWARNINGThereis arisk of an accident ifthe tire pressure monitoring system is malfunctioning
Ifthe tire pressure monitoring system is malfunctioning, it is not abletoissue awarning ifthere is pressure lossin one or more ofthe tires.
Underinflated tires may,forexample, impairthe driving,steering and brakingcharacteristics.
Havethe tire pressure monitoring systemchecked at aqualified specialistworkshop.
Visit aqualified specialistworkshop.
Tires Overheated*At least one tire isoverheating. The affected tires are displayed inred.Attemperatures closetothe limitvalue,thetires are displayed inyellow.
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Display messagesPossible causes/consequences andPPSolutions
Drive more slowly.
Decrease Speed*At least one tire isoverheating. The affected tires are displayed inred.Attemperatures closetothe limitvalue,thetires are displayed inyellow.
\nWARNINGRisk of an accident from driving withoverheated tires
Overheated tires may burst, particularly at high speeds.
Reduce speed sothatthe tires cool down.
Reduce speed sothatthe tires cool down.
Check Tire Pressure ThenRestart Run Flat Indicator
*Canada only:
The tire pressure losswarning systemgenerated a displaymessageand has not beenrestarted since.
Whenthe tire pressure is correct,restartthe tire pressure losswarning system (page 398).
Run Flat Indicator Inopera-tive
*Canada only:
The tire pressure losswarning system is malfunctioning.
Visit aqualified specialistworkshop.
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