engine MERCEDES-BENZ SL CLASS 2019 Workshop Manual

With the SmartKey:if you then open the driv-er's door or the front-passenger door orremove the SmartKey from the ignition, theautomatic transmission shifts to]automati-cally.
With KEYLESS-GO:if you then open the driv-er's or front-passenger door, the automatictransmission shifts to]automatically.
If you want the automatic transmission toremain in neutral\\, e.g. when having thevehicle cleaned in an automatic car wash witha towing system:
XVehicles with KEYLESS-GO:remove theStart/Stop button from the ignition lock.
XInsert the SmartKey into the ignition lock.
XAll vehicles:switch the ignition on.
XDepress the brake pedal and keep itdepressed.
XShift to neutral\\.
XRelease the brake pedal.
XRelease the electric parking brake.
XSwitch off the ignition and leave the Smart-Key in the ignition lock.
Engaging drive position D
XWhen the vehicle is stationary, depress thebrake pedal.
XPush the selector lever back past the firstpoint of resistance.
Transmission positions
EPark position
This prevents the vehicle from roll-ing away when stopped.
Only shift the transmission intopositionE(Ypage 134) whenthe vehicle is stationary. The park-ing lock should not be used as abrake when parking. Always applythe electronic parking brake in addi-tion to the parking lock in order tosecure the vehicle.
If the SmartKey is removed from theignition lock, the transmission islocked.
The automatic transmission shiftstoEautomatically:
Rwhen the SmartKey is removedfrom the ignition lock
Rwhen the engine is switched offwith the transmission in positionFor:and one of thedoors is opened
In the event of a malfunction of thevehicle's electronics, the transmis-sion may lock in positionE.Have the vehicle electronicschecked immediately at a qualifiedspecialist workshop.
FReverse gear
Only shift the transmission intopositionFwhen the vehicle isstationary.
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DNeutral
Do not shift the transmission toDwhile driving. The automatictransmission could otherwise bedamaged.
No power is transmitted from theengine to the drive wheels.
Releasing the brake pedal will allowyou to move the vehicle freely, e.g.to push it or tow it.
If ESP®is deactivated or faulty: shiftthe transmission to positionDifthe vehicle is in danger of skidding,e.g. on icy roads.
!Coasting in neutral\\maycause damage to the drive train.
:Drive
The automatic transmissionchanges gear automatically. Allforward gears are available.
Driving tips
Changing gear
The automatic transmission shifts through theindividual gears automatically when it is intransmission position[. This automatic gearshifting behavior is determined by:
Rthe selected drive program
Rthe position of the accelerator pedal
Rthe road speed
Accelerator pedal position
Your style of driving influences how the auto-matic transmission shifts gear:
Rlittle throttle: early upshifts
Rmore throttle: late upshifts
Kickdown
Use kickdown for maximum acceleration.
XDepress the accelerator pedal beyond thepressure point.The automatic transmission shifts to a lowergear depending on the engine speed.
XEase off the accelerator pedal once thedesired speed is reached.The automatic transmission shifts back up.
Drive programs
All vehicles (except Mercedes-AMG
vehicles)
Drive program C (Comfort)
Drive programCis characterized by the follow-ing:
Rthe vehicle pulls away more gently inforward and reverse gears, unless the accel-erator pedal is depressed fully.
Rlow fuel consumption resulting from theautomatic transmission shifting up sooner.The vehicle is driven in the low engine speedrange and the wheels are less likely to spin.
Rthe suspension exhibits comfortable damp-ing settings.
Rthe steering exhibits comfortable steeringcharacteristics.
RESP®provides the optimum compromisebetween traction and stability. Further infor-
mation about ESP®(Ypage 66).
iSelect this drive program for difficult roadconditions, e. g. snow and ice or wet roadsurfaces.
Drive program S (Sport)
Drive programSis characterized by the follow-ing:
Rthe vehicle exhibits sporty driving character-istics.
Rthe vehicle pulls away in first gear.
Rthe automatic transmission shifts up later.The fuel consumption possibly being higheras a result of the later automatic transmis-sion shift points.
Rthe suspension exhibits firm damping set-tings.
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Rthe steering exhibits sporty steering charac-teristics.
RESP®provides the optimum compromisebetween traction and stability. Further infor-
mation about ESP®(Ypage 66).
Drive program S+ (Sport Plus)
Drive programS+is characterized by the fol-lowing:
Rthe vehicle exhibits particularly sporty driv-ing characteristics.
Rthe vehicle pulls away in first gear.
Rthe automatic transmission shifts up later.The fuel consumption possibly being higheras a result of the later automatic transmis-sion shift points.
Rthe suspension exhibits particularly firmdamping settings (vehicles with adaptivedamping system).
Rthe suspension exhibits firm damping set-tings (vehicles with Active Body Control).
Rthe steering exhibits sporty steering charac-teristics.
RESP®emphasizes the vehicle's own over-steering and understeering characteristics.This enables a more active driving style. Thisdrive program requires increased driver
interaction. Further information about ESP®
(Ypage 66).
iOnly select this drive program if the roadconditions are good, e.g. the road is dry andthe route ahead is clearly visible.
Drive program I (Individual)
In drive programIthe following properties ofthe drive program can be selected:
Rthe drive (engine and transmission manage-ment)
Rthe suspension
Rthe steering
Rthe control thresholds of ESP®
Information about configuring drive programIwith the multimedia system can be found inthe Digital Operator's Manual.
Vehicles with adaptive damping system:
drive program E (Economy)
Drive programEis characterized by the follow-ing:
Rthe vehicle exhibits comfortable, economicalhandling characteristics.
Rthe vehicle pulls away more gently inforward and reverse gears, unless the accel-erator pedal is depressed fully.
Roptimal fuel consumption resulting from theautomatic transmission shifting up sooner.The vehicle is driven in the low engine speedrange and the wheels are less likely to spin.
Rthe suspension exhibits comfortable damp-ing settings.
Rthe steering exhibits comfortable steeringcharacteristics.
Rduring deceleration, the engine is discon-nected from the drive train. The vehicle useskinetic energy and consumes less fuel(coasting mode).
RESP®provides the optimum compromisebetween traction and stability. Further infor-
mation about ESP®(Ypage 66).
Vehicles with Active Body Control:
CURVE drive program
TheCURVEdrive program is characterized bythe following:
Rincreased driving comfort on bends.
Rthe vehicle tilts actively into the bend. Fur-ther information on the curve tilting function(Ypage 169).
Rthe vehicle exhibits comfortable, economicalhandling characteristics.
Rthe vehicle pulls away more gently inforward and reverse gears, unless the accel-erator pedal is depressed fully.
Rcomfortable suspension setting.
Rthe steering exhibits comfortable steeringcharacteristics.
Roptimal fuel consumption resulting from theautomatic transmission shifting up sooner.
Rthe automatic transmission shifting upsooner. This results in the vehicle beingdriven at lower engine speeds and thewheels being less likely to spin.
Rduring deceleration, the engine is discon-nected from the drive train. The vehicle uses
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kinetic energy and consumes less fuel(coasting mode).
RESP®provides the optimum compromisebetween traction and stability. Further infor-
mation about ESP®(Ypage 66).
Mercedes-AMG vehicles
RACE drive program
iThe RACE drive program may not be usedon normal roads. RACE must only be activa-ted and used on dedicated race circuits, noton public roads.
TheRACEdrive program is characterized bythe following:
Rthe vehicle exhibits driving characteristicssuitable for the racetrack.
Rall vehicle systems are set for maximumsportiness.
Rthe gearshift recommendation gives youinformation for slowly warming up the driveassemblies and for adopting a fuel-efficientdriving style (Ypage 141). You can followthe gearshift recommendations at all timesand shift gear accordingly using the steeringwheel paddle shifters. On the basis of thegearshift recommendation, using the steer-ing wheel paddle shifters, you can optimizethe drive train and engine operating mode atany time.
Rif you have selected a gear manually, thiswill be maintained until the vehicle speedincreases or decreases dramatically.
Rthe vehicle pulls away in first gear.
Rthe automatic transmission shifts up later.The fuel consumption possibly being higheras a result of the later automatic transmis-sion shift points.
Rthe suspension exhibits particularly firmdamping settings.
Rgliding mode is not available.
Rthe ECO start/stop function is not available.
RESP®switches to SPORT handling mode.ThetSPORT handling mode warninglamp in the instrument cluster lights up. TheSPORT Handling ModeSPORT Handling Modemessage appears inthe multifunction display. Observe theimportant safety notes for the SPORT han-dling mode (Ypage 68).
RESP®only improves driving stability to alimited degree. The engine's torque is only
restricted to a limited degree and the drivewheels can spin. Further information about
ESP®(Ypage 68).
Drive program S+ (Sport Plus)
Drive programS+is characterized by the fol-lowing:
Rthe vehicle exhibits particularly sporty driv-ing characteristics.
Rthe vehicle pulls away in first gear.
Rthe automatic transmission shifts up later.The fuel consumption possibly being higheras a result of the later automatic transmis-sion shift points.
Rthe suspension exhibits particularly firmdamping settings.
Rgliding mode is not available.
Rthe ECO start/stop function is not available.
RESP®provides the optimum compromisebetween traction and stability. Further infor-
mation about ESP®(Ypage 66).
Drive program S (Sport)
Drive programSis characterized by the follow-ing:
Rthe vehicle exhibits sporty driving character-istics.
Rthe vehicle pulls away in first gear.
Rthe automatic transmission shifts up later.The fuel consumption possibly being higheras a result of the later automatic transmis-sion shift points.
Rthe suspension exhibits particularly firmdamping settings.
Rgliding mode is not available.
Rthe ECO start/stop function is not available.
RESP®provides the optimum compromisebetween traction and stability. Further infor-
mation about ESP®(Ypage 66).
Drive program C (Comfort)
Drive programCis characterized by the follow-ing:
Rthe vehicle delivers comfortable, economicalhandling characteristics.
Rthe vehicle pulls away more gently inforward and reverse gears, unless the accel-erator pedal is depressed fully.
Rthe vehicle has improved driving stability,for example on slippery road surfaces.
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Roptimal fuel consumption resulting from theautomatic transmission shifting up sooner.The vehicle is driven in the low engine speedrange and the wheels are less likely to spin.
Rgliding mode is available.
Rthe ECO start/stop function is available.
RESP®provides the optimum compromisebetween traction and stability. Further infor-
mation about ESP®(Ypage 66).
Drive program I (Individual)
In drive programIthe following properties ofthe drive program can be selected:
Rthe drive (engine management)
Rthe transmission management
RESP®
Rthe suspension
Information about configuring drive programIwith the multimedia system can be found inthe Digital Operator's Manual.
iTo permanently select the gears in driveprogramIusing the steering wheel paddleshifters, select theM(manual) setting forthe transmission.
Manual gear shifting
General notes
You can change gear yourself using the steer-ing wheel paddle shifters. The transmissionmust be in position[to do this.
Depending on which steering wheel paddleshifter is pulled, the automatic transmissionimmediately shifts into the next gear down orup, if permitted.
To use manual shifting, you have two options:
Rtemporary setting
Rpermanent setting
If you activate manual gearshifting, the multi-function display will show the current gearinstead of transmission position[.
If manual gearshifting is deactivated, the gearswill be selected automatically.
Temporary setting
XTo activate:shift the selector lever to[.
XPull steering wheel paddle shifterCorD.
The temporary setting is active for a certainamount of time. Under certain conditions, theminimum amount of time is extended, e.g. inthe case of lateral acceleration, during overrunmode or when driving on steep terrain.
XTo deactivate:pull steering wheel paddleshifterDand hold it in place.
or
XUse the lever to switch the transmissionposition.
or
XAll vehicles (except Mercedes-AMG vehi-cles):use the DYNAMIC SELECT button tochange the drive program.
XMercedes-AMG vehicles:use theDYNAMIC SELECT controller to change thedrive program.
Permanent setting
All vehicles (except Mercedes-AMG vehi-
cles)
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XTo activate:shift the selector lever to[.
XPress buttonC.
XTo deactivate:press buttonC.
Mercedes-AMG vehicles
XTo activate:shift the selector lever to[.
XPress buttonC.
XTo deactivate:press buttonC.
or
XIf position D (automatic transmission) isselected for the transmission in drive pro-gramI: shift to drive programIwith theDYNAMIC SELECT controller.
Shifting gears
All vehicles (except Mercedes-AMG vehi-
cles)
XTo shift up:pull steering wheel paddleshifterD.The automatic transmission shifts up to thenext gear.
If the maximum engine speed in the cur-rently engaged gear is reached and you con-tinue to accelerate, the automatic transmis-
sion automatically shifts up in order to pre-vent engine damage.
XTo shift down:pull steering wheel paddleshifterC.The automatic transmission shifts down tothe next gear.
Automatic down shifting occurs when coast-ing.
If the engine were to exceed the maximumengine speed when shifting down, the auto-matic transmission protects against enginedamage by not shifting down.
Mercedes-AMG vehicles
!If manual gearshifting is permanently acti-vated, the automatic transmission does notshift up automatically even when the enginelimiting speed for the current gear isreached. When the engine limiting speed isreached, the fuel supply is cut to preventthe engine from overrevving. Always makesure that the engine speed does not reachthe red area of the tachometer. There is oth-erwise a risk of engine damage.
XTo shift up:pull steering wheel paddleshifterD.The automatic transmission shifts up to thenext gear.
XTo shift down:pull steering wheel paddleshifterC.The automatic transmission shifts down tothe next gear.
Automatic down shifting occurs when coast-ing.
If the engine were to exceed the maximumengine speed when shifting down, the auto-matic transmission protects against enginedamage by not shifting down.
142Automatic transmission
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Shift recommendation
All vehicles (except Mercedes-AMG vehi-
cles)
The gearshift recommendations assist you inadopting an economical driving style. The rec-ommended gear is shown in the multifunctiondisplay.
XShift to recommended gearDaccording togearshift recommendationCwhen shownin the multifunction display of the instru-ment cluster.
Mercedes-AMG vehicles
The gearshift recommendations assist you inadopting an economical driving style. The rec-ommended gear is shown in the multifunctiondisplay.
XShift to recommended gearDaccording togearshift recommendationCwhen shownin the multifunction display of the instru-ment cluster.
Upshifting (Mercedes-AMG vehicles)
!If manual gearshifting is permanently acti-vated, the automatic transmission does not
shift up automatically even when the enginelimiting speed for the current gear isreached. When the engine limiting speed isreached, the fuel supply is cut to preventthe engine from overrevving. Always makesure that the engine speed does not reachthe red area of the tachometer. There is oth-erwise a risk of engine damage.
CGear indicator
DUpshift indicator
Before the engine speed reaches the red area,an upshift indicator will be shown in the multi-function display.
XWhen theUPUPmessage appears in the multi-function display, pull on the right-handsteering wheel paddle shifter.
Kickdown
XFor maximum acceleration, depress theaccelerator pedal beyond the pressurepoint.The automatic transmission shifts to a lowergear depending on the engine speed.
XShift back up once the desired speed isreached.
During kickdown, you cannot shift gears usingthe steering wheel paddle shifters.
If you apply full throttle, the automatic trans-mission shifts up to the next gear when themaximum engine speed is reached. This pre-vents the engine from overrevving.
Mercedes-AMG vehicles:kickdown is onlypossible in the temporary setting.
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Problems with the transmission
ProblemPossible causes/consequences andPPSolutions
The transmission hasproblems shifting gear.The transmission is losing oil.
XHave the transmission checked at a qualified specialist workshopimmediately.
The acceleration abilityis deteriorating.
The transmission nolonger changes gear.
The transmission is in emergency mode.
All vehicles (except Mercedes-AMG vehicles):it is only partlypossible to engage the gears, or the transmission is in position\\.
Mercedes-AMG vehicles:it is only possible to shift intosecondgear and reverse gear.
XStop the vehicle.
XShift the transmission to position].
XSwitch off the engine.
XWait at least ten seconds before restarting the engine.
XShift the transmission to position[or^.Mercedes-AMG vehicles:if[is selected, the transmissionshifts tosecondgear if^is selected, the transmission shiftsinto reverse gear.
XHave the transmission checked at a qualified specialist workshopimmediately.
Refueling
Important safety notes
GWARNING
Fuel is highly flammable. Risk of fire and
explosion by improper handling of fuel.
You must avoid fire, open flames, smoking
and creating sparks. Switch off the ignition
before refueling and, if present, switch off
the auxiliary heating.
GWARNING
Fuels are toxic and harmful to health. There
is a risk of injury.
You must avoid fuels coming into contact
with skin, eyes and clothes or being swal-
lowed.
Do not inhale the fuel vapors. Keep children
away from fuels.
Keep doors and windows closed during the
refueling process.
If you or others come into contact with fuel,
observe the following points:
RImmediately rinse the fuel off your skin
with soap and water.
RIf you get fuel into your eyes, immediately
rinse your eyes throughly with clean
water. Seek medical attention immedi-
ately.
RSeek medical attention immediately if fuel
has been swallowed. Do not induce vomit-
ing.
RImmediately change out of clothing which
has come into contact with fuel.
GWARNING
Electrostatic charging can lead to the crea-
tion of sparks and ignite fuel vapor. There is
a risk of fire and explosion.
Touch the metallic body of the vehicle
before you open the fuel filler cap or handle
the pump nozzle. Any possible electrostatic
charge present will in this way be depleted.
144Refueling
Driving and parking

Do not get into the vehicle again during the
refueling process. Otherwise, electrostatic
charge could build up again.
Do not get into the vehicle again during therefueling process. Otherwise, electrostaticcharge could build up again.
!Do not use diesel to refuel vehicles with agasoline engine. Do not switch on the igni-tion if you accidentally refuel with the wrongfuel. Otherwise, the fuel will enter the fuelsystem. Even small amounts of the wrongfuel could result in damage to the fuel sys-tem and the engine. Notify a qualified spe-cialist workshop and have the fuel tank andfuel lines drained completely.
!Overfilling the fuel tank could damage thefuel system.
!Take care not to spill any fuel on paintedsurfaces. You could otherwise damage thepaintwork.
!Use a filter when adding fuel from a fuelcan. The fuel lines and/or the fuel injectionsystem could otherwise be blocked by parti-cles from the fuel can.
If you overfill the fuel tank, fuel could sprayout when the fuel pump nozzle is removed.
For further information on fuel and fuel quality(Ypage 322).
Refueling
General information
The fuel filler flap is unlocked or locked auto-matically when you unlock or lock the vehiclewith the SmartKey or using KEYLESS-GO.
The position of the fuel filler cap is displayed

Never leave children unsupervised in the
vehicle.
!Always secure the vehicle correctly againstrolling away. Otherwise, the vehicle or itsdrivetrain could be damaged.
To ensure that the vehicle is secured againstrolling away unintentionally:
Rthe electric parking brake must be applied.
Rthe transmission must be in position].
Rthe SmartKey must be removed from theignition lock.
Rthe front wheels must be turned towards thecurb on steep uphill or downhill gradients.
Switching off the engine
GWARNING
The automatic transmission switches to neu-
tral positionNwhen you switch off the
engine. The vehicle may roll away. There is a
risk of an accident.
After switching off the engine, always switch
to parking positionP. Prevent the parked
vehicle from rolling away by applying the
parking brake.
XApply the electric parking brake.
XShift the transmission to position](Ypage 136).
XWith the SmartKey :turn the SmartKey toposition