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Active Brake Assist Func-tions Currently Limited SeeOperator's Manual
*Vehicles withthe Driving AssistancePackage:Active Brake Assistwith cross-traffic function, EvasiveSteering
Assist or PRE‑SAFE®PLUS aretemporarily unavailable or only partiallyavailable.
Vehicles withoutthe Driving Assistance package:Active Brake Assististemporarily unavailable.
The ambient conditions are outsidethe system limits (→page170).
Drive on.As soon asthe ambient conditions are withinthe system limits,the system will becomeavailable again.
Ifthe display message does not disappear,stopthevehicle while paying attentiontoroad and traffic conditionsandrestartthe engine.
u
SRS Malfunction ServiceRequired
*Therestraint system isfaulty (→page 32).
\nWARNINGRisk of injuryorfatal injury duetoa malfunction intherestraint system
Iftherestraint system is malfunctioning,restraint system components may be triggered unintentionally ormight not be triggered at all intheevent of an accident. This may affectthe EmergencyTensioning Device orairbag,forexample.
Havetherestraint systemchecked andrepaired immediately at aqualified specialistworkshop.
Detection of arestraint system malfunction:
RThe urestraint systemwarning lamp does not light up whenthe ignition is switched on.
RThe urestraint systemwarning lamp lights up continuously orrepeatedly during a journey. Visit aqualified specialistworkshop immediately.
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Active Lane Keeping AssistCamera View RestrictedSee Operator's Manual
*Vehicles withoutActiveSteering Assist:the camera view isrestricted.
Possible causes are:
Rdirt onthe windshield inthe camera'sfield of vision
Rheavyrain, snow orfog
Driving systems and driving safety systems may be malfunctioning ortemporarily unavailable.
Oncethe cause ofthe problem is no longer present, driving systems and driving safety systems will beavailableagain.
Ifthe display message does not disappear:
Pullover andstopthevehicle safely as soon as possible, paying attentiontoroad and traffic conditions.
Cleanthe windshield.
Active Parking Assist andPARKTRONIC InoperativeSee Operator's Manual
*ActiveParking Assist andParking AssistPARKTRONIC are malfunctioning.
Stopthevehicle, paying attentiontoroad and traffic conditions, andrestartthe engine.
Ifthe display message continuestobe displayed, consult aqualified specialistworkshop.
Active Blind Spot AssistCurrently Unavailable SeeOperator's Manual
*Active Blind Spot Assististemporarily unavailable.
The system limits havebeenreached (→page212).
Drive on.Oncethe cause ofthe problem is no longer present,the system will beavailable again.
Ifthe display message does not disappear,stopthevehicle while paying attentiontoroad and traffic conditionsandrestartthe engine.
450Display messages andwarning/indicator lamps
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Engine
Display messagesPossible causes/consequences and P PSolutions
=
See Operator's Manual
*The battery is not beingcharged.
NOTEPossible engine damage ifyou continue driving
Do not continue driving under any circumstances.
Consult aqualified specialistworkshop.
Pullover andstopthevehicle safely and switch offthe engine, paying attentiontoroad and traffic conditions.
Consult aqualified specialistworkshop.
Check Coolant Level SeeOperator's Manual
*The coolant level istoo low.
NOTEEngine damageduetoinsufficient coolant
Avoid long journeyswith insufficient coolant.
Add coolant (→page 353).
=
*The batterychargelevel istoo low.
Pullover andstopthevehicle safely as soon as possible, paying attentiontoroad and traffic conditions. Do notcontinue driving under any circumstances.
Leavethe enginerunning.
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Stop Vehicle Leave EngineRunning
Wait untilthe display message disappears before pullingaway.
=
12 V Battery See Opera-tor's Manual
*The engine is off andthe batterychargelevel istoo low.
Switch off electrical consumersthat are notrequired.
Leavethe enginerunningfor afew minutes, or drivefor a longer distance.The battery willcharge.Ifthe message appears whilethe engine isrunning,this indicates an on-board electrical system malfunction.
Visit aqualified specialistworkshop.
=
Stop Vehicle See Opera-tor's Manual
*The battery is no longer beingcharged andthe batterychargelevel istoo low.
NOTEPossible engine damage ifyou continue driving
Do not continue driving under any circumstances.
Consult aqualified specialistworkshop.
Pullover andstopthevehicle safely as soon as possible, paying attentiontoroad and traffic conditions. Do notcontinue driving under any circumstances.
Switch offthe engine.
Consult aqualified specialistworkshop.
Cannot Start Engine SeeOperator's Manual
*Thechargelevel ofthe 48 V battery istoo low.You can no longerstartthe engine.
Switch off electrical consumersthat are notrequired.
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Connect a suitablecharger approvedbyMercedes-Benz with sufficientchargeoutputtothe jump-startconnec‐tion point ofthe12V battery (→page374).The 48 V batteryischarged viathevoltage converter inthevehicle.
Engine Can Now Be Started*The 48 V battery has beencharged automatically viathevoltage converter.
Startthe engine and drivethevehiclefor a whiletochargethe12V battery andthe 48 V battery.
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Display messagesPossible causes/consequences and P PSolutions
Avoiding high loads onthe engine, drivetothe nearestqualified specialistworkshop. In doing so, ensurethatthe coolanttemperature displayremains belowthered marking.
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Display messagesPossible causes/consequences and P PSolutions
Consult aqualified specialistworkshop immediately and havethe engine oil siphoned off.
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Transmission
Display messagesPossible causes/consequences and P PSolutions
Transmission MalfunctionStop
*The transmission is malfunctioning. The transmission shiftstoposition \\automatically.
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.
*You haveattemptedtoshiftthe transmission out of position ]and into another transmission position.
458Display messages andwarning/indicator lamps
