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Display messagesPossible causes/consequences and P PSolutions
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).
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*The batterychargelevel istoo low.
Pullover andstopthevehicle safely as soon as possible, paying attentiontoroad and traffic conditions. Do notcontinue driving under any circumstances.
Leavethe enginerunning.
Display messages andwarning/indicator lamps451
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Display messagesPossible causes/consequences and P PSolutions
Stop Vehicle Leave EngineRunning
Wait untilthe display message disappears before pullingaway.
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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.
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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.
452Display messages andwarning/indicator lamps
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Display messagesPossible causes/consequences and P PSolutions
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
48 V Battery See Opera-tor's Manual
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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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Display messagesPossible causes/consequences and P PSolutions
Pullover andstopthevehicle safely as soon as possible, paying attentiontoroad and traffic conditions. Do notcontinue driving under any circumstances.
Consult aqualified specialistworkshop.
