2019 MERCEDES-BENZ SL CLASS steering

Display messagesPossible causes/consequences andPPSolutions
Active ParkingActive ParkingAssist CanceledAssist CanceledThe driver's door is open and the driver's seat belt has not been fas-tened.
XRepeat the parking process with the seat belt fastened and thedriver's door closed.
You have inadvertently touched the multifunction steering wheelwhile steering intervention was active.
XWhile steering intervention is active, make sure that the multi-function steering wheel is not touched unintentionally.
The vehicle has started to skid and ESP®has intervened.
XUse Active Parking Assist again later (Ypage 175).
Active ParkingActive ParkingAssist InoperativeAssist InoperativeYou have just carried out a large number of turning or parkingmaneuvers.
Active Parking Assist will become available again after approx-imately ten minutes (Ypage 175).
XPull over and stop the vehicle safely as soon as possible, payingattention to road and traffic conditions.
XSwitch off and restart the engine.
If the multifunction display still shows the display message:
XVisit a qualified specialist workshop.
Active Parking Assist is malfunctioning.
XVisit a qualified specialist workshop.
Active ParkingActive ParkingAssist FinishedAssist FinishedThe vehicle is parked. A warning tone also sounds.
The display message disappears automatically.
Active DistanceActive DistanceAssist OffAssist OffActive Distance Assist DISTRONIC was deactivated (Ypage 156).
If it was deactivated automatically, a warning tone also sounds.
Active DistanceActive DistanceAssist Now Availa‐Assist Now Availa‐bleble
Active Distance Assist DISTRONIC is operational again after havingbeen temporarily unavailable. You can now reactivate Active Dis-tance Assist DISTRONIC (Ypage 156).
224Displaymessages
On-b oard computer and displays

Display messagesPossible causes/consequences andPPSolutions
Active DistanceActive DistanceAssist CurrentlyAssist CurrentlyUnavailable SeeUnavailable SeeOperator's ManualOperator's Manual
Active Distance Assist DISTRONIC is temporarily inoperative.
Active Steering Assist is also temporarily inoperative.
Possible causes are:
Rthe radar sensor system is temporarily inoperative, e.g. due toelectromagnetic radiation emitted by nearby TV or radio stationsor other sources of electromagnetic radiation
Rthe system is outside the operating temperature range
Rthe on-board voltage is too low
A warning tone also sounds.
When the causes stated above no longer apply, the display messagedisappears.
Active Distance Assist DISTRONIC is operational again.
If the display message does not disappear:
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).
XRestart the engine.
Active DistanceActive DistanceAssist InoperativeAssist InoperativeActive Distance Assist DISTRONIC is faulty.
The following may have also failed:
RBrake Assist with cross-traffic function
RActive Brake Assist with cross-traffic function
RActive Steering Assist
A warning tone also sounds.
XVisit a qualified specialist workshop.
Act. DistanceAct. DistanceAssist SuspendedAssist SuspendedYou have depressed the accelerator pedal. Active Distance AssistDISTRONIC is no longer controlling the speed of the vehicle.
XRemove your foot from the accelerator pedal.
Distance Assist--Distance Assist--- mph- mphA condition for activating Active Distance Assist DISTRONIC has notbeen met.
XCheck the activation conditions for Active Distance AssistDISTRONIC (Ypage 156).
Display messages225
On-board computer and displays
Z

Display messagesPossible causes/consequences andPPSolutions
Active SteeringActive SteeringAssist CurrentlyAssist CurrentlyUnavailable SeeUnavailable SeeOperator's ManualOperator's Manual
Active Steering Assist is temporarily inoperative.
Possible causes are:
Rthe windshield in the camera's field of vision is dirty
Rvisibility is impaired due to heavy rain, snow or fog
Rthere have been no lane markings for an extended period
Rthe lane markings are worn away, dark or covered up, e.g. by dirtor snow
When the causes stated above no longer apply, the display messagedisappears.
Active Steering Assist is operational again.
If the display message does not disappear:
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).
XClean the windshield.
Active SteeringActive SteeringAssist InoperativeAssist InoperativeActive Steering Assist is faulty.
However, the Active Distance Assist DISTRONIC functions are stillavailable.
A warning tone also sounds.
XVisit a qualified specialist workshop.
Cruise Control OffCruise Control OffCruise control has been deactivated.
If a warning tone also sounds, cruise control has deactivated auto-matically (Ypage 154).
Cruise Control - -Cruise Control - -- mph- mphCruise control cannot be activated, since not all of the activationconditions have been met.
XCheck the activation conditions for cruise control (Ypage 154).
Cruise ControlCruise ControlInoperativeInoperativeCruise control is malfunctioning.
A warning tone also sounds.
XVisit a qualified specialist workshop.
226Displaymessages
On-b oard computer and displays

Tires
Display messagesPossible causes/consequences andPPSolutions
Please CorrectPlease CorrectTire PressureTire PressureThe tire pressure is too low in at least one of the tires, or the tirepressure difference between the wheels is too great.
XCheck the tire pressures at the next opportunity (Ypage 299).
XIf necessary, correct the tire pressure.
XRestart the tire pressure monitor (Ypage 301).
Tire Pressure SoonTire Pressure SoonThe tire pressure in one or more tires has dropped significantly. Thewheel position is shown in the multifunction display.
A warning tone also sounds.
GWARNING
Tire pressures that are too low pose the following hazards:
Rthey may burst, especially as the load and vehicle speed increase
Rthey may wear excessively and/or unevenly, which may greatlyimpair tire traction.
Rthe driving characteristics, as well as steering and braking, maybe greatly impaired
There is a risk of an accident.
XStop the vehicle without making any sudden steering or brakingmaneuvers. Pay attention to the traffic conditions as you do so.
XSecure the vehicle against rolling away (Ypage 146).
XCheck the tires and, if necessary, follow the instructions for a flattire (Ypage 278).
XCheck the tire pressure (Ypage 299).
XIf necessary, correct the tire pressure.
Warning Tire Mal‐Warning Tire Mal‐functionfunctionThe tire pressure in one or more tires has dropped suddenly. Thewheel position is shown in the multifunction display.
GWARNING
Driving with a flat tire poses a risk of the following hazards:
Ra flat tire affects the ability to steer or brake the vehicle
Ryou could lose control of the vehicle.
Rcontinued driving with a flat tire will cause excessive heat build-up and possibly a fire
There is a risk of an accident.
XStop the vehicle without making any sudden steering or brakingmaneuvers. Pay attention to the traffic conditions as you do so.
XSecure the vehicle against rolling away (Ypage 146).
XCheck the tires and, if necessary, follow the instructions for a flattire (Ypage 278).
Displaymessages227
On-b oard computer and displays
Z

Tires
Warning/indicatorlamp
QQSignal type
Possible causes/consequences andPPSolutions
wQThe yellow tire pressure monitor warning lamp (pressure loss/malfunction) islit.
The tire pressure monitor has detected a loss of pressure in at least one of thetires.
GWARNING
Tire pressures that are too low pose the following hazards:
Rthey may burst, especially as the load and vehicle speed increase
Rthey may wear excessively and/or unevenly, which may greatly impair tiretraction.
Rthe driving characteristics, as well as steering and braking, may be greatlyimpaired
There is a risk of an accident.
XStop the vehicle without making any sudden steering or braking maneuvers.Pay attention to the traffic conditions as you do so.
XSecure the vehicle against rolling away (Ypage 146).
XObserve the additional display messages in the multifunction display.
XCheck the tires and, if necessary, follow the instructions for a flat tire(Ypage 278).
XCheck the tire pressure (Ypage 299).
XIf necessary, correct the tire pressure.
wQThe yellow tire pressure monitor warning lamp (pressure loss/malfunction)flashes for approximately one minute and then remains lit.
The tire pressure monitor is faulty.
GWARNING
The system is possibly unable to recognize or register low tire pressure.
There is a risk of an accident.
XObserve the additional display messages in the multifunction display.
XVisit a qualified specialist workshop immediately.
242Warning and indicator lamps
On-board computer and displays

You can obtain further information from yourMercedes me connect manual.
iThe system has not been able to initiate aRoadside Assistance call, if:
Rthe indicator lamp for Roadside Assis-tance call buttonCis flashing continu-ously.
Rno voice connection to the Mercedes-Benz Customer Assistance Center hasbeen established.
R
This can occur if the relevant mobile phonenetwork is not available, for example.
TheCall FailedCall Failedmessage appears in themultifunction display.
XTo end a call:press thevbutton on themultifunction steering wheel.
or
XPress the corresponding button for ending aphone call on COMAND.
MB Info call button
XPress MB Info call buttonC.This initiates a call to the Mercedes-BenzCustomer Assistance Center.
The indicator lamp in MB Info call buttonCflashes while the connection is being made.The multifunction display shows theCon‐Con‐necting Callnecting Callmessage. The audio systemis muted.
If a connection can be made, theCall Con‐Call Con‐nectednectedmessage appears in the multifunctiondisplay.
If a mobile phone network and GPS receptionare available, the system transfers data to theMercedes-Benz Customer Assistance Center,for example:
RCurrent location of the vehicle
RVehicle identification number
iThe COMAND display indicates that a callis active. During the call, you can change tothe navigation menu by pressing the NAVIbutton on COMAND, for example.
Voice output is not available.
A voice connection is established between theMercedes-Benz Customer Assistance Centerand the vehicle occupants.
You receive information about operating yourvehicle, about the nearest Mercedes-Benz Ser-vice Center and about other products andservices from Mercedes-Benz.
USA only: you can find further information onthe Mercedes me connect system under "Own-ers Online" at http://www.mbusa.com.
iThe system has not been able to initiate anMB Info call, if:
Rthe indicator lamp in MB Info call but-tonCis flashing continuously.
Rno voice connection to the Mercedes-Benz Customer Assistance Center wasestablished.
This can occur if the relevant mobile phonenetwork is not available, for example.
TheCall FailedCall Failedmessage appears in themultifunction display.
XTo end a call:press thevbutton on themultifunction steering wheel.
or
XPress the corresponding button for ending aphone call on COMAND.
Call priority
When service calls are active, e.g. RoadsideAssistance or MB Info calls, an emergency callcan still be initiated. In this case, an emer-gency call will take priority and override allother active calls.
The indicator lamp of the respective buttonflashes until the call is ended.
An emergency call can only be terminated bythe Mercedes-Benz Customer Assistance Cen-ter.
258Features
Stowage and features

Maintaining the time-dependent service sched-ule:
XNote down the service due date displayed inthe multifunction display before disconnect-ing the battery.
or
XAfter reconnecting the battery, subtract thebattery disconnection periods from the ser-vice date shown on the display.
Hiding service displays
XPress thevor8button on the steer-ing wheel.
Showing service displays
XSwitch on the ignition.
XPressYoreon the steering wheelto select theServ.Serv.menu.
XPresscordto select theASSYSTASSYSTPLUSPLUSsubmenu and confirm by pressing thevbutton.The service due date appears in the multi-function display.
Information about Service
Resetting the ASSYST PLUS service
interval display
!If the ASSYST PLUS service interval dis-play has been inadvertently reset, this set-ting can be corrected at a qualified special-ist workshop.
Have service work carried out as describedin the Maintenance Booklet. This may other-wise lead to increased wear and damage tothe major assemblies or the vehicle.
A qualified specialist workshop, e.g. an author-ized Mercedes-Benz Center, will reset theASSYST PLUS service interval display after theservice work has been carried out. You canalso obtain further information on mainte-nance work, for example.
Special service requirements
The specified maintenance interval takes onlythe normal operation of the vehicle intoaccount. Service work will need to be per-formed more often if the vehicle is operatedunder arduous conditions or increased loads.
The ASSYST PLUS service interval display isonly an aid. The driver of the vehicle is respon-sible for whether service work will need to beperformed more frequently than required as aresult of the actual operating conditionsand/or loads.
Examples of arduous operating conditions:
Rregular city driving with frequent intermedi-ate stops
Rthe vehicle is primarily used to travel shortdistances
Rfrequent use in mountainous terrain or onpoor road surfaces
Rthe engine is often left idling for long peri-ods
Rparticularly dusty conditions, or if air-recir-culation mode is frequently used
In these or similar operating conditions, havethe interior filter, air filter, engine oil and oil fil-ter, for example, changed more frequently.Under arduous operating conditions, the tiresmust be checked more often. Further informa-tion can be obtained at a qualified specialistworkshop.
Driving abroad
An extensive Mercedes-Benz Service networkis also available in other countries. You canobtain further information from any authorizedMercedes-Benz Service Center.
Care
Notes on care
HEnvironmental note
Dispose of empty packaging and cleaning
cloths in an environmentally responsible
manner.
!When cleaning your car, do not use:
Rdry, coarse or hard cloths
Rabrasive cleaning agents
270Care
Maintenance and care

If a pressure loss warning messageappears in the multifunction display:
Robserve the instructions in the display mes-sages (Ypage 227)
Rcheck the tire for damage
Rif driving on, observe the following notes
The driving distance possible in run-flat modeis approximately 50 miles (80 kilometers)when the vehicle is partially laden and approx-imately 19 miles (30 kilometers) when thevehicle is fully laden.
In addition to the vehicle load, the driving dis-tance possible depends upon:
RVehicle speed
RRoad condition
ROutside temperature
The driving distance possible in run-flat modemay be reduced by extreme driving conditionsor maneuvers, or it can be increased through amoderate style of driving.
The driving distance possible in run-flat modeis counted from the moment the tire pressureloss warning appears in the multifunction dis-play.
You must not exceed a maximum designspeed of 50 mph (80 km/h).
When replacing one or all tires, please observethe following specifications for your vehicle'stires:
RSize
RType and
RThe "MOExtended" mark
If a tire has gone flat and cannot be replacedwith an MOExtended tire, a standard tire maybe used as a temporary measure. Make surethat you use the proper size and type (summeror winter tire).
Vehicles equipped with MOExtended tires arenot equipped with a TIREFIT kit at the factory.It is therefore recommended that you addition-ally equip your vehicle with a TIREFIT kit if youmount tires that do not feature run-flat charac-teristics, e.g. winter tires. A TIREFIT kit can beobtained from a qualified specialist workshop,for example.
Important safety notes
GWARNING
When you drive in emergency mode, the
handling characteristics are impaired. e.g.
when cornering, when accelerating strongly
and when braking. There is a risk of an acci-
dent.
Do not exceed the maximum specified
speed. Avoid any abrupt steering and driving
maneuvers as well as driving over obstacles
(curbs, pot holes, off-road). This applies, in
particular, to a loaded vehicle.
Stop driving in emergency mode if you
notice:
Rbanging noise
Rvehicle vibration
Rsmoke which smells like rubber
Rcontinuous ESP®intervention
Rcracks in the tire side walls
After driving in emergency mode, have the
rims checked by a qualified specialist work-
shop with regard to their further use. The
defective tire must be replaced in every
case.
TIREFIT kit
Important safety notes
TIREFIT is a tire sealant.
You can use TIREFIT to seal punctures of up to0.16 in (4 mm), particularly those in the tiretread. You can use TIREFIT at outside tempera-tures down to