2019 MERCEDES-BENZ SL CLASS Owners Manual

Display messagesPossible causes/consequences andPPSolutions
Front-passengerFront-passengerAir Bag DisabledAir Bag DisabledSee Operator's Man‐See Operator's Man‐ualual
The front-passenger front air bag and front-passenger knee air bagare disabled during the journey, although:
Ran adult
or
Ra person of the corresponding stature is on the front-passengerseat
If additional forces are applied to the seat, the system may interpretthe occupant's weight as lower than it actually is.
GWARNING
The front-passenger front air bag and front-passenger knee air bagmay not be triggered in the event of an accident.
There is an increased risk of injury.
XPull over and stop the vehicle safely as soon as possible, payingattention to road and traffic conditions.
XSecure the vehicle against rolling away (Ypage 146).
XSwitch the ignition off.
XHave the occupant on the front-passenger seat get out of thevehicle.
XKeep the seat unoccupied, close the front-passenger door andswitch on the ignition.
XObserve the PASSENGER AIR BAG indicator lamps in the centerconsole and the multifunction display and check the following:
Seat unoccupied and ignition switched on:
Ra self-diagnosis is carried out. The PASSENGER AIR BAG OFFand PASSENGER AIR BAG ON indicator lamps must light upsimultaneously for approximately six seconds.
Rthe PASSENGER AIR BAG OFF indicator lamp must then lightup and remain lit after the self-diagnosis. If the indicator lampis on, OCS has disabled the front-passenger front air bag andfront-passenger knee bag (Ypage 48)
RtheFront-passenger Air Bag Enabled See Operator'sFront-passenger Air Bag Enabled See Operator'sManualManualorFront-passenger Air Bag Disabled See Oper‐Front-passenger Air Bag Disabled See Oper‐ator's Manualator's Manualdisplay messages must not appear in the mul-tifunction display
XWait for a period of at least 60 seconds until the necessary sys-tem checks have been completed.
XMake sure that the display messages do not appear in the multi-function display.
If these conditions are fulfilled, the front-passenger seat can beoccupied again. Whether the PASSENGER AIR BAG OFF or ON indi-cator lamp remains lit or goes out depends on how OCS classifiesthe occupant.
If the conditions are not fulfilled, the system is not operating cor-rectly.
XVisit a qualified specialist workshop immediately.
Observe the additional information on OCS (Ypage 48).
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On-b oard computer and displays
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Display messagesPossible causes/consequences andPPSolutions
Front-passengerFront-passengerAir Bag EnabledAir Bag EnabledSee Operator's Man‐See Operator's Man‐ualual
The front-passenger front air bag and front-passenger knee air bagare enabled during the journey, although:
Ra child, a small adult or an object weighing less than the system'sweight threshold is located on the front-passenger seat
or
Rthe front-passenger seat is unoccupied
The system may detect objects or forces applying additional weighton the seat.
GWARNING
The front-passenger front air bag and the front-passenger knee bagmay be deployed unintentionally.
There is an increased risk of injury.
XPull over and stop the vehicle safely as soon as possible, payingattention to road and traffic conditions.
XSecure the vehicle against rolling away (Ypage 146).
XSwitch the ignition off.
XOpen the front-passenger door.
XRemove the child and the child restraint system from the front-passenger seat.
XMake sure that there are no objects on the seat adding to theweight.The system might otherwise detect the additional weight andinterpret the seat occupant's weight as greater than it actually is.
XKeep the seat unoccupied, close the front-passenger door andswitch on the ignition.
XObserve the PASSENGER AIR BAG indicator lamps in the centerconsole and the multifunction display and check the following:
Seat unoccupied and ignition switched on:
Ra self-diagnosis is carried out. The PASSENGER AIR BAG OFFand PASSENGER AIR BAG ON indicator lamps must light upsimultaneously for approximately six seconds.
Rthe PASSENGER AIR BAG OFF indicator lamp must then lightup and remain lit after the self-diagnosis. If the indicator lampis on, OCS (Occupant Classification System) has disabled thefront-passenger front air bag and front-passenger knee air bag(Ypage 48)
RtheFront-passenger Air Bag Enabled See Operator'sFront-passenger Air Bag Enabled See Operator'sManualManualorFront-passenger Air Bag Disabled See Oper‐Front-passenger Air Bag Disabled See Oper‐ator's Manualator's Manualdisplay messages must not appear in the mul-tifunction display
XWait for a period of at least 60 seconds until the necessary sys-tem checks have been completed.
XMake sure that the display messages do not appear in the multi-function display.
If these conditions are fulfilled, the front-passenger seat can beoccupied again. Whether the PASSENGER AIR BAG OFF or ON indi-
216Displaymessages
On-b oard computer and displays

Display messagesPossible causes/consequences andPPSolutions
cator lamp remains lit or goes out depends on how OCS classifiesthe occupant.
If the conditions are not fulfilled, the system is not operating cor-rectly.
XVisit a qualified specialist workshop immediately.
Observe the additional information on OCS (Ypage 48).
Lights
Display messagesPossible causes/consequences andPPSolutions
I
Check Left LowCheck Left LowBeamBeam(Example)
The corresponding bulb is faulty.
XVisit a qualified specialist workshop.
or
XCheck whether you are permitted to replace the bulb yourself(Ypage 113).
LED light sources: the display message for the corresponding lamponly appears when all the LEDs in the lamp have failed.
I
Active HeadlampsActive HeadlampsInoperativeInoperative
The active light function is faulty.
XVisit a qualified specialist workshop.
I
Malfunction SeeMalfunction SeeOperator's ManualOperator's Manual
The exterior lighting is malfunctioning.
XVisit a qualified specialist workshop.
I
Auto Lamp FunctionAuto Lamp FunctionInoperativeInoperative
The light sensor is defective.
XVisit a qualified specialist workshop.
I
Switch Off LightsSwitch Off Lights
The lights are still switched on when you leave the vehicle. A warn-ing tone also sounds.
XTurn the light switch to positionX.
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On-b oard computer and displays
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Display messagesPossible causes/consequences andPPSolutions
Adaptive HighbeamAdaptive HighbeamAssist CurrentlyAssist CurrentlyUnavailable SeeUnavailable SeeOperator's ManualOperator's Manual
Adaptive Highbeam Assist is deactivated and temporarily inopera-tive.
Possible causes are:
RThe windshield in the camera's field of vision is dirty.
RVisibility is impaired due to heavy rain, snow or fog.
XClean the windshield.
If the system detects that the camera is fully operational again, theAdaptive Highbeam Assist Now AvailableAdaptive Highbeam Assist Now Availablemessage is dis-played.
Adaptive Highbeam Assist is operational again.
Adaptive HighbeamAdaptive HighbeamAssist InoperativeAssist InoperativeAdaptive Highbeam Assist is faulty.
XVisit a qualified specialist workshop.
Engine
Display messagesPossible causes/consequences andPPSolutions

Display messagesPossible causes/consequences andPPSolutions

Display messagesPossible causes/consequences andPPSolutions
=
Stop Vehicle SeeStop Vehicle SeeOperator's ManualOperator's Manual
The battery is no longer being charged and the condition of chargeis too low.
A warning tone also sounds.
XPull over and stop the vehicle safely and switch off the engine,paying attention to road and traffic conditions.
XSecure the vehicle against rolling away (Ypage 146).
XObserve the instructions in the=See Operator's ManualSee Operator's Manualdisplay message.
XConsult a qualified specialist workshop.

Display messagesPossible causes/consequences andPPSolutions

Display messagesPossible causes/consequences andPPSolutions
Active Body Control (ABC) is malfunctioning.
The multifunction display continuously shows the display message.
GWARNING
The suspension settings are thus affected.
There is a risk of an accident.
XDo not drive at speeds above 50 mph (80 km/h).
XMake only slight steering movements. Otherwise, the front fenderor the tires could be damaged if the steering movement is toolarge.
XListen for scraping sounds.
XVisit a qualified specialist workshop immediately.