2019 MERCEDES-BENZ SL CLASS warning

As a result, Active Distance Assist
DISTRONIC may neither give warnings nor
intervene in such situations. There is a risk
of an accident.
Always pay careful attention to the traffic
situation and be ready to brake.
GWARNING
Distance keeping assistant cannot always
clearly identify other road users and com-
plex traffic situations.
In such cases, distance keeping assistant
can:
Raccelerate or brake the vehicle unexpect-
edly
Rintervene unexpectedly
There is a risk of an accident.
Continue to drive carefully and be ready to
brake, especially if distance keeping assis-
tant warns you.
GWARNING
Active Distance Assist DISTRONIC brakes
your vehicle with up to 50% of the maximum
possible deceleration. If this deceleration is
not sufficient, Active Distance Assist
DISTRONIC alerts you with a visual and
acoustic warning. There is a risk of an acci-
dent.
Adjust your speed in these cases and main-
tain sufficient distance.
Apply the brakes yourself and/or take eva-
sive action.
!When Active Distance Assist DISTRONICor the HOLD function is activated, the vehi-cle brakes automatically in certain situa-tions.
To avoid damage to the vehicle, deactivateActive Distance Assist DISTRONIC and theHOLD function in the following or similar sit-uations:
Rwhen towing the vehicle
Rin the car wash
Active Distance Assist DISTRONIC can neitherreduce the risk of an accident if you fail to
adapt your driving style, nor override the lawsof physics. Active Distance Assist DISTRONICcannot take into account road, weather or traf-fic conditions. Active Distance AssistDISTRONIC is only an aid. You are responsiblefor the distance to the vehicle in front, forvehicle speed, for braking in good time and forstaying in your lane.
Do not use Active Distance Assist DISTRONIC:
RIn road and traffic conditions which do notallow you to maintain a constant speed, e.g.in heavy traffic or on winding roads
Ron slippery road surfaces. Braking or accel-erating could cause the drive wheels to losetraction and the vehicle could then skid
RIn poor visibility, e.g. due to fog, heavy rainor snow
Active Distance Assist DISTRONIC may notdetect narrow vehicles driving in front, e.g.motorcycles, or vehicles driving in a staggeredformation.
In particular, the detection of obstacles can beimpaired if:
RThere is dirt on the sensors or anything elsecovering the sensors
RThere is snow or heavy rain
RThere is interference by other radar sources
RThere are strong radar reflections, for exam-ple in parking garages
If Active Distance Assist DISTRONIC no longerdetects a vehicle in front, Distance PilotDISTRONIC may unexpectedly accelerate tothe speed stored.
This speed may:
RBe too high if you are driving in a turninglane or an exit lane
RBe so high when driving in the right-handlane that you overtake vehicles in the left-hand lane
RBe so high in the left lane that you passvehicles driving on the right
If there is a change of drivers, advise the newdriver of the speed stored.
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The support provided by the system can beimpaired if:
Rthere is poor visibility, e.g. due to insuffi-cient illumination of the road, or due tosnow, rain, fog or heavy spray
Rthere is glare, e.g. from oncoming traffic,the sun or reflection from other vehicles(e.g. if the road surface is wet)
Rthe windshield is dirty, fogged up, damagedor covered, for instance by a sticker, in thevicinity of the camera
Rthere are no lane markings, or severalunclear lane markings are present, e.g.around construction sites
Rthe lane markings are worn away, dark orcovered up, e.g. by dirt or snow
Rthe distance to the vehicle in front is tooshort and thus the lane markings cannot bedetected
Rthe lane markings change quickly, e.g. lanesbranch off, cross one another or merge
Rthe road is narrow and winding
Rthere are highly variable shade conditionson the roadway
The system is switched to passive and no lon-ger assists you by performing steering inter-ventions if:
Ryou actively change lanes
Ryou switch on the turn signal
Ryou take your hands off the steering wheelor do not steer for a prolonged period oftime
iAfter you have finished changing lanes,Active Steering Assist is automatically activeonce more.
Active Steering Assist cannot provide assis-tance:
Ron very sharp corners
Rwhen a loss of tire pressure or a defectivetire has been detected and displayed
Observe the important safety notes on ActiveDistance Assist DISTRONIC (Ypage 156).
The steering interventions are carried out witha limited steering moment. The systemrequires the driver to keep his hands on thesteering wheel and to steer himself.
If you do not steer yourself or if you take yourhands off the steering wheel for a prolongedperiod of time, the system will first alert youwith a visual warning. A steering wheel symbol
appears in the multifunction display. If youhave still not started to steer and have nottaken hold of the steering wheel after five sec-onds at the latest, a warning tone also soundsto remind you to take control of the vehicle.Active Steering Assist is then switched to pas-sive. Active Distance Assist DISTRONICremains active.
Activating Active Steering Assist
XSelect the Active Distance AssistDISTRONIC with Active Steering Assist func-tion using the on-board computer(Ypage 198).TheActive Steering Assist OnActive Steering Assist Onmes-sage appears in the multifunction display.Active Steering Assist is activated.
Information in the multifunction display
If Active Steering Assist is activated but notready for a steering intervention, steeringwheel symbolCappears in gray. If the sys-tem provides you with support by means ofsteering interventions, symbolCis shown ingreen.
Deactivating Active Steering Assist
XDeactivate the Active Distance AssistDISTRONIC with Active Steering Assist func-tion using the on-board computer(Ypage 198).TheActive Steering Assist OffActive Steering Assist Offmes-sage appears in the multifunction display.Active Steering Assist is deactivated.
When Active Distance Assist DISTRONIC isdeactivated or not available, Active SteeringAssist is deactivated automatically.
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HOLD function
General notes
The HOLD function can assist the driver in thefollowing situations:
RWhen pulling away, especially on steepslopes
RWhen maneuvering on steep slopes
RWhen waiting in traffic
The vehicle is kept stationary without thedriver having to depress the brake pedal.
The braking effect is canceled and the HOLDfunction deactivated when you depress theaccelerator pedal to pull away.
Important safety notes
GWARNING
If the vehicle is only braked using the HOLD
function, the vehicle may roll away in the fol-
lowing situations when you leave the vehi-
cle:
Rif there is a malfunction in the system or
in the voltage supply
Rif the HOLD function is deactivated by
depressing the accelerator pedal or brake
pedal, e.g. by a vehicle occupant
There is a risk of an accident.
Always deactivate the HOLD function and
secure the vehicle against rolling away
before you leave it.
!When Active Distance Assist DISTRONICor the HOLD function is activated, the vehi-cle brakes automatically in certain situa-tions.
To avoid damage to the vehicle, deactivateActive Distance Assist DISTRONIC and theHOLD function in the following or similar sit-uations:
Rwhen towing the vehicle
Rin the car wash
Deactivating the HOLD function (Ypage 165).
Activation conditions
You can activate the HOLD function if all of thefollowing conditions are fulfilled:
Rthe vehicle is stationary.
Rthe engine is running or if it has been auto-matically switched off by the ECO start/stop function.
Rthe driver's door is closed or your seat beltis fastened.
Rthe electric parking brake is released.
Rthe transmission is in position[,^or\\.
RActive Distance Assist DISTRONIC is deacti-vated
Activating the HOLD function
XMake sure that the activation conditions aremet.
XDepress the brake pedal.
XQuickly depress the brake pedal furtheruntilCappears in the multifunction dis-play.The HOLD function is activated. You canrelease the brake pedal.
iIf depressing the brake pedal the first timedoes not activate the HOLD function, waitbriefly and then try again.
Deactivating the HOLD function
The HOLD function is deactivated automati-cally if:
Ryou depress the accelerator and the trans-mission is in position[or^.
Rthe transmission is in position].
Ryou depress the brake pedal again with acertain amount of pressure untilHOLDHOLDdisap-pears from the multifunction display.
Ryou secure the vehicle using the electricparking brake.
Ryou activate Active Distance AssistDISTRONIC.
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iAfter a time, the electric parking brakesecures the vehicle and relieves the servicebrake.
When the HOLD function is activated, thetransmission is shifted automatically to posi-tion]if:
Rthe driver's seat belt is not fastened and thedriver's door is open.
Rthe engine is switched off, unless it is auto-matically switched off by the ECO start/stop function.
The electric parking brake secures the vehicleautomatically if the HOLD function is activatedwhen the vehicle is stationary and:
Ra system malfunction occurs
Rthe power supply is not sufficient
If a malfunction in the electric parking brakeoccurs, the transmission may also be shiftedinto position]automatically.
RACE START
Important safety notes
iRACE START must not be used on normalroads. RACE START must only be activatedand used on dedicated road circuits, outsideof public road use.
iRACE START is only available forMercedes‑AMG vehicles.
RACE START enables optimal accelerationfrom a standing start. For this, a suitably high-grip road surface is required and the vehicleand tires must be in good working order.
GWARNING
If you use RACE START, individual tires may
start to spin and the vehicle could skid.
Depending on the selected ESP®mode,
there is an increased risk of skidding and
having an accident. Make sure that no per-
sons, animals or obstacles are within range
of the vehicle.
iObserve the safety notes on driving safetysystems (Ypage 60).
Be sure to read the safety notes and infor-
mation on ESP®(Ypage 65).
Activation conditions
You can activate RACE START if:
Rthe doors are closed.
Rthe engine is running and it has reached anoperating temperature of approximately160 ‡ (71 †). This is the case when the oiltemperature gage in the multifunction dis-play is shown in white.
Rthe engine is running and the engine andtransmission are at operating temperature.This is the case when the oil temperaturegage in the multifunction display is shown inwhite (Ypage 202).
RESP®is functioning correctly (Ypage 66)
Rthe drive programS,S+orRaceis selected(Ypage 133)
Rthe steering wheel is in the straight-aheadposition
Rthe vehicle is stationary and the brake pedalis depressed (left foot)
Rthe transmission is in position[
Activating RACE START
iWhen manual mode (Ypage 141) is active,the transmission automatically shifts up inthe RACE START drive program. This func-tion supports maximum acceleration withRACE START. After going through an accel-erating process once from a stationary posi-tion, this function is automatically deactiva-ted.
XDepress the brake pedal with your left footand keep it depressed.
XPull and hold both steering wheel paddleshifters.
XTheRACE START Confirm: Paddle UPRACE START Confirm: Paddle UPCancel: Paddle DOWNCancel: Paddle DOWNmessage appears inthe multifunction display.
XRelease both steering wheel paddle shifters.
iIf the activation conditions are no longerfulfilled, RACE START is canceled. TheRACE START CanceledRACE START Canceledmessage appears inthe multifunction display.
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try roads or, ideally, when driving on closedrace circuits.
XPress DYNAMIC SELECT buttonCrepeat-edly until theSport Plusdrive program isselected.
Activating the driving dynamics dis-
play
Using the driving dynamics display in the mul-timedia system display, you can see the driveprogram you selected as well as additionalinformation on the vehicle's operating state.
XSwitch on the multimedia system. Furtherinformation can be found in the Digital Oper-ator's Manual.
XPress buttonC.The driving dynamics display appears in themultimedia system display.
The following information on the vehicle'soperating status is displayed in the drivingdynamics display:
RDrive program selected (Ypage 132)
RAccelerator pedal position shown in %
RBrake pedal position shown in %
RSteering angle
RDamping setting selected
RG-FORCE cross displaying longitudinal andlateral acceleration (only available inSportorSport Plusdrive programs)
Active Body Control ABC (except
Mercedes-AMG vehicles)
Setting the vehicle level
General notes
The vehicle level can be set using theDYNAMIC SELECT button (Ypage 132) or thelevel button. The setting always correspondsto the last selected function.
In order to reduce fuel consumption andimprove the driving dynamics, the vehicle islowered as its speed increases. In theSportandSport Plusdrive programs, it is loweredby up to 0.5 in (13 mm) compared to the nor-mal vehicle level. In theComfortandCURVEdrive programs, it is lowered by up to 0.2 in(5 mm) compared to the normal vehicle level.As the speed is reduced, the vehicle is raisedup to the set vehicle height.
Select the normal level for normal road surfa-ces and the raised level for driving with snowchains or on particularly poor road surfaces.
Important safety notes
GWARNING
The vehicle is lowered slightly in the follow-
ing situations:
Rthe SPORT suspension setting is selected
at the normal vehicle level
Rthe engine is switched off
Persons in the vicinity of the wheel arch or
the underbody may thus become trapped.
There is a risk of injury.
Make sure that nobody is in the vicinity of
the wheel arch or the underbody when you
switch off the engine.
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Important safety notes
The vehicle is slightly lowered when the engineis switched off.
GWARNING
When the vehicle is being lowered, people
could become trapped if their limbs are
between the vehicle body and the wheels or
underneath the vehicle. There is a risk of
injury.
Make sure no one is underneath the vehicle
or in the immediate vicinity of the wheel
arches when the vehicle is being lowered.
Setting raised level
XMake sure that the engine is running or thatit has been switched off by the ECO start/stop function.
XMake sure that a speed of 75 mph(120 km/h) is not exceeded.
XIf symbolDDis not shown:pressYoreon the steering wheel to select theDriveAssistDriveAssistmenu.
XPress thecordbutton to selectVehicle levelVehicle level.
XPress thevbutton.The following message appears:CVehi‐Vehi‐cle level Press 'OK' to Raisecle level Press 'OK' to Raise.
XPress thevbutton.If the engine has been switched off by theECO start/stop function, it is now restarted.
SymbolDappears. The vehicle height isadjusted to raised level.
Setting the normal level
XMake sure that the engine is running or thatit has been switched off by the ECO start/stop function.
XIf symbolDDis shown:pressYoreon the steering wheel to select theDriveAssistDriveAssistmenu.
XPress thecordbutton to selectVehicle levelVehicle level.
XPress thevbutton.The following message appears:CVehi‐Vehi‐cle level Press 'OK' to Lowercle level Press 'OK' to Lower.
XPress thevbutton.IconDis faded out. The vehicle is adjustedto normal level
The "Raised level" setting is canceled if you:
Rare driving faster than approximately75 mph (120 km/h).
Rdrive for approximately three minutes at aspeed over 50 mph (80 km/h).
Ror switch to the drive program while thevehicle is in motion.
Suspension tuning
General notes
The electro-hydraulically controlled suspensionfeatures improved driving dynamics, drivingsafety and ride comfort. You can also choosebetween a particularly sporty or a comfortabletuning.
The suspension is continuously tuned to eachwheel individually and depends on:
Rthe road surface condition, e.g. bumps
Rthe vehicle load
Rthe drive program selected
Your selection remains saved even if youremove the key from the ignition lock.
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Rear sensors
CenterApprox. 48 in (approx.120 cm)
CornersApprox. 32 in (approx.80 cm)
Minimum distance
CenterApprox. 8 in (approx.20 cm)
CornersApprox. 6 in (approx.15 cm)
If there is an obstacle within this range, therelevant warning displays light up and a warn-ing tone sounds. If the distance falls below theminimum, the distance may no longer beshown.
Warning displays
Warning display for the front area
CSegments on the left-hand side of the vehi-cle
DSegments on the right-hand side of thevehicle

Problems with Parking Assist PARKTRONIC
ProblemPossible causes/consequences andPPSolutions
Only the red segmentsin the Parking AssistPARKTRONIC warningdisplays are lit. You alsohear a warning tone forapproximately two sec-onds.
Parking AssistPARKTRONIC is deacti-vated after approx-imately five secondsand the indicator lampin the Parking AssistPARKTRONIC buttonlights up.
Parking Assist PARKTRONIC has malfunctioned and has been deac-tivated.
XIf problems persist, have Parking Assist PARKTRONIC checked ata qualified specialist workshop.
Only the red segmentsin the Parking AssistPARKTRONIC warningdisplays are lit. ParkingAssist PARKTRONIC isdeactivated afterapproximately five sec-onds.
The Parking Assist PARKTRONIC sensors are dirty or there is inter-ference.
XClean the Parking Assist PARKTRONIC sensors (Ypage 275).
XSwitch the ignition back on.
The problem may be caused by an external source of radio or ultra-sound waves.
XCheck to see if Parking Assist PARKTRONIC works at a differentlocation.
Active Parking Assist
General notes
Active Parking Assist is an electronic parkingaid with ultrasound. It measures the road onboth sides of the vehicle. A parking symbolindicates a suitable parking space. Activesteering intervention can assist you duringparking and when exiting a parking space. Youcan also still use Parking Assist PARKTRONIC(Ypage 172).
Important safety notes
Active Parking Assist is merely an aid. It is nota replacement for your attention to your imme-diate surroundings. You are always responsi-ble for safe maneuvering, parking and exiting aparking space. Make sure that no persons, ani-mals or objects are in the path of your vehicle.
When Parking Assist PARKTRONIC is deactiva-ted, Active Parking Assist is also unavailable.
GWARNING
While parking or pulling out of a parking
space, the vehicle swings out and can drive
onto areas of the oncoming lane. This could
cause you to collide with other road users or
objects. There is a risk of an accident.
Pay attention to other road users or objects.
Stop the vehicle if necessary or cancel the
Active Parking Assist parking procedure.
GWARNING
While parking or pulling out of a parking
space, the vehicle swings out and can drive
onto areas of the oncoming lane. This could
cause you to collide with other road users or
objects. There is a risk of an accident.
Pay attention to other road users or objects.
Stop the vehicle if necessary or cancel the
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