MERCEDES-BENZ C CLASS 2019 Owners Manual

Display messagesPossible causes/consequences andPPSolutions
Blind Spot Assist CurrentlyUnavailable See Operator'sManual
*Blind Spot Assist istemporarily unavailable.
The system limits havebeenreached (page219).
Drive on.Oncethe cause ofthe problem is no longer present,the system will beavailable again.
or
Ifthe display message does not disappear,stopthevehicle while paying attentiontoroad and traffic conditionsandrestartthe engine.
If necessary,cleantherear bumper. Ifthe bumper isextremelydirty,the sensors inthe bumper may be mal‐functioning.
Active Steering Assist Inop-erative
*ActiveSteering Assist is malfunctioning.Active Distance AssistDISTRONICremainsavailable.
Visit aqualified specialistworkshop.

Display messagesPossible causes/consequences andPPSolutions
Blind Spot Assist Inopera-tive
Visit aqualified specialistworkshop.
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 (page219).
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.
Active Steering Assist Cur-rently Unavailable SeeOperator's Manual
*ActiveSteering Assist istemporarily unavailable.
The ambient conditions are outsidethe system limits (page189).
Drive on.As soon asthe ambient conditions are withinthe system limits,the system will becomeavailable again.
If necessary,cleanthe windshield inthe camera'sfield of vision.
Checkthe tire pressure if necessary.
450Display messages andwarning/indicator lamps

Display messagesPossible causes/consequences andPPSolutions

Display messagesPossible causes/consequences andPPSolutions

Display messagesPossible causes/consequences andPPSolutions
Active Lane Keeping AssistInoperative
Consult aqualified specialistworkshop.
Malfunction Drive at Max.50 mph
*AIRMATIC is functioning onlytoa limitedextent. Thevehicle's handlingcharacteristics may be affected.
NOTEThe tires ofthe front axle orthe frontfenderscould be damagedbylargesteering movements
Avoid largesteering movements while driving and listenfor scraping sounds.
Ifyou hear scraping sounds, pullover andstopthevehicle safely, paying attentiontoroad and traffic con‐ditions, and set a highervehicle level if possible.
Drive in a manner appropriateforthe current level, but do notexceed 50mph (80 km/h).
Visit aqualified specialistworkshop.DYNAMICBODYCONTROL is malfunctioning. Thevehicle's handlingcharacteristics may be affected.
Do not drive at speeds greaterthan 50mph (80 km/h).
Visit aqualified specialistworkshop.
Blind Spot Assist Not Avail-able When Towing a TrailerSee Operator's Manual
*Whenyou establishthe electrical connectiontothe trailer, Blind Spot Assist is unavailable.
Pressthe left-handTouch Control and acknowledgethe display message.

Display messagesPossible causes/consequences andPPSolutions
Stop Vehicle Vehicle TooLow
Pullover andstopthevehicle, paying attentiontoroad and traffic conditions.Thevehicle israisedtothe selectedvehicle level.
Wait untilthe display message disappears before pullingaway.
Ifthe display message does not disappear and awarningtone also sounds, AIRMATIC is malfunctioning:
Do not drivefasterthan 50mph (80 km/h) and consult aqualified specialistworkshop immediately.
NOTEThe tires ofthe front axle orthe frontfenderscould be damagedbylargesteering movements
Avoid largesteering movements while driving and listenfor scraping sounds.
Ifyou hear scraping sounds, pullover andstopthevehicle safely, paying attentiontoroad and traffic con‐ditions, and set a highervehicle level if possible.
Set a highervehicle level (page198).Depending onthe malfunction,thevehicle israised.
¢
Lowering
*Thevehicle level may be loweredforthefollowingreasons:
Ryou haveselected a different drive program.
Ryou haveexceeded a critical speed.
Ryou havechangedthevehicle levelbypressing a button.
454Display messages andwarning/indicator lamps

Display messagesPossible causes/consequences andPPSolutions

Display messagesPossible causes/consequences andPPSolutions
Active Distance Assist Cur-rently Unavailable SeeOperator's Manual
*Active Distance AssistDISTRONIC istemporarily unavailable.
The ambient conditions are outsidethe system limits (page183).
Drive on.As soon asthe ambient conditions are withinthe system limits,the system will becomeavailable again.
Active Distance Assist Inop-erative
*Active Distance AssistDISTRONIC is malfunctioning.
Other driving systems and driving safety systems may also malfunction.
Visit aqualified specialistworkshop.
Active Distance Assist NowAvailable
*Active Distance AssistDISTRONIC is operational again and can be activated (page185).

Display messagesPossible causes/consequences andPPSolutions
Active Lane Keeping AssistCamera View RestrictedSee Operator's Manual
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.
Engine
Display messagesPossible causes/consequences andPPSolutions
=
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.
Display messages andwarning/indicator lamps457

Display messagesPossible causes/consequences andPPSolutions
Pullover andstopthevehicle safely and switch offthe engine, paying attentiontoroad and traffic conditions.
Consult aqualified specialistworkshop.
=
Stop Vehicle Leave EngineRunning
*The batterychargelevel istoo low.
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.
Check Coolant Level SeeOperator's Manual
*The coolant level istoo low.
NOTEEngine damageduetoinsufficient coolant
Avoid long journeyswith insufficient coolant.
Add coolant (page 357).
=
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.
458Display messages andwarning/indicator lamps