2019 MERCEDES-BENZ S CLASS Owners Manual

Safety systems
Display messagesPossible causes/consequences andPPSolutions

Display messagesPossible causes/consequences andPPSolutions
(Canada only)
Turn On the Ignition toRelease the Parking Brake
I
(USA only)
$
(Canada only)
Parking Brake See Opera-tor's Manual
*Theyellow$indicator lamp is lit. The electric parking brake is malfunctioning.
Toapply:
#Switch offthe ignition and switch it back on.
#Applythe electric parking brake manually (→page190).
If it isnot possibletoapplythe electric parking brake:
#Visit aqualified specialistworkshop.
#Where necessary,also safeguardthe parkedvehicle againstrollingaway.Theyellow$andtheredI(USA only) or$(Canada only) indicator lamps are lit. The electric parkingbrake is malfunctioning.
Torelease:
#Switchoffthe ignition and switch it back on.
#Releasethe electric parking brake manually (→page190).
or
#Releasethe electric parking brake automatically (→page189).If it isstill not possibletoreleasethe electric parking brake:
#Do not continue driving under any circumstances. Consult aqualified specialistworkshop.
480Display messages andwarning/indicator lamps

Display messagesPossible causes/consequences andPPSolutions
Theyellow$indicator lamp is lit andtheredI(USA only) or$(Canada only) indicator lamp isflashing.The electric parking brake is malfunctioning.
The electric parking brake could not be applied orreleased.
#Switchoffthe ignition and switch it back on.
Toapply:
#Release andthen applythe electric parking brake manually (→page190).
Torelease:
#Apply andthenreleasethe electric parking brake manually.
Ifthe electric parking brake cannotbe applied ortheredI(USA only) or$(Canada only) indicator lampcontinuestoflash:
#Do not continue driving under any circumstances. Consult aqualified specialistworkshop.
#Where necessary,also safeguardthe parkedvehicle againstrollingaway.Theyellow$indicator lamp is on andtheredIindicator lamp (USA only) orthe$indicator lamp (Can‐ada only)flashesfor approximatelyten seconds afterthe electric parking brake has been applied orreleased. Itthenremains lit or goes out. The electric parking brake is malfunctioning.
Ifthe batterychargelevel istoo low:
#Chargethe battery.
Toapply:
Displaymessages andwarning/indicator lamps481

Display messagesPossible causes/consequences andPPSolutions
#Switch offthe ignition.The electric parking brake is applied automatically.
Ifthe electric parking brake should not be applied, e.g. whenwashingthevehicle in an automatic carwash or whenhavingthevehicletowed, leavethe ignition switched on. This does not include havingthevehicletowed withtherear axleraised.
Ifthe electric parking brake is not applied automatically:
#Switch offthe ignition and switch it back on.
#Release andthen applythe electric parking brake manually (→page190).
If it isstill not possibletoapplythe electric parking brake:
#Visit aqualified specialistworkshop.
#Where necessary,also safeguardthe parkedvehicle againstrollingaway.
Torelease:
#Ifthe conditionsfor automaticrelease are fulfilled andthe electric parking brake is notreleased automatically,releasethe electric parking brake manually (→page190).
If it isstill not possibletoreleasethe electric parking brake:
#Do not continue driving under any circumstances. Consult aqualified specialistworkshop.
482Display messages andwarning/indicator lamps

Display messagesPossible causes/consequences andPPSolutions
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(USA only)
$
(Canada only)
Please Release ParkingBrake
*TheredI(USA only) or$(Canada only) indicator lampflashes.
The electric parking brake is applied whileyou are driving:
RA conditionfor automaticrelease ofthe electric parking brake is not fulfilled (→page189).
RYou are performing emergency braking usingthe electric parking brake (→page190).
#Checkthatthe conditionsfor automaticrelease ofthe electric parking brake are fulfilled.
#Releasethe electric parking brake manually.
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Display messagesPossible causes/consequences andPPSolutions
#Havethe brake systemchecked immediately at aqualified specialistworkshop.
#Drive on carefully.
#Visit aqualified specialistworkshop immediately.
'
(USA only)
M
(Canada only)
Check Brake Fluid Level
*There is insufficient brakefluid inthe brakefluidreservoir.
&WARNINGRisk of an accident duetolow brakefluid level
Ifthe brakefluid level istoo low,the braking effect andthe brakingcharacteristics may be impaired.
#Pullover andstopthevehicle safely as soon as possible, paying attentiontoroad and traffic conditions.Do not continue driving under any circumstances.
#Consult aqualified specialistworkshop.
#Do not add brakefluid.
#Pullover andstopthevehicle safely as soon as possible, paying attentiontoroad and traffic conditions. Do notcontinue driving under any circumstances.
#Do not add brakefluid.
#Consult aqualified specialistworkshop.
Radar Sensors Dirty SeeOperator's Manual
*Theradar sensor system is malfunctioning.Possible causes are:
RDirt onthe sensors
RHeavyrain or snow
484Display messages andwarning/indicator lamps

Display messagesPossible causes/consequences andPPSolutions
RExtended country driving withoutother traffic, e.g. inthe desert
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.
#Clean all sensors (→page 409).
#Restartthe engine.
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Display messagesPossible causes/consequences andPPSolutions
#HaveABS and ESP®checked immediately at aqualified specialistworkshop.
#Carefully drive on a suitablestretch ofroad, making slightsteering movements at a speed above19mph(30 km/h).
#Ifthe display message does not disappear, consult aqualified specialistworkshop immediately. Drive carefully.
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