2019 MERCEDES-BENZ SL CLASS ECU

Modifying the programming
(SmartKey)........................................... 75
MOExtended tires.............................. 278
Mounting wheels
Lowering the vehicle ...................... 317
Mounting a new wheel ................... 316
Preparing the vehicle .....................313
Raising the vehicle ......................... 314
Removing a wheel .......................... 316
Securing the vehicle against roll-
ing away ........................................ 314
MP3
Operation ....................................... 196
see also Digital Operator's Man-
ual ..................................................243
Multifunction display
Function/notes .............................192
Permanent display ......................... 199
Multifunction steering wheel
Operating the on-board com-
puter .............................................. 191
Overview .......................................... 34
Multimedia system
Switching on and off ......................244
Music files
see also Digital Operator's Man-
ual ..................................................243
N
Navigation
Entering a destination .................... 245
Menu (on-board computer) ............ 194
see also Digital Operator's Man-
ual ..................................................243
Navigation menu
Important safety notes .................. 194
NECK-PRO head restraints
Important safety notes .................... 55
Operation ......................................... 55
Resetting triggered .......................... 55
Notes on breaking-in a new vehi-
cle....................................................... 125
O
Occupant Classification System
(OCS)
Conditions ....................................... 48
Faults ............................................... 51
Operation ......................................... 48
Self-test ...........................................50
Occupant safety
Air bags ...........................................45
Automatic measures after an
accident ........................................... 56
Belt warning ..................................... 44
Children in the vehicle ..................... 57
Important safety notes.................... 40
Introduction to the restraint sys-
tem .................................................. 40
Occupant Classification System
(OCS) ............................................... 48
PASSENGER AIR BAG indicator
lamps ............................................... 41
Pets in the vehicle........................... 59
PRE-SAFE®(anticipatory occu-
pant protection) ............................... 55
PRE-SAFE®PLUS (anticipatory
occupant protection PLUS) .............. 56
Restraint system warning lamp ........ 41
Seat belt .......................................... 41
OCS
Faults ............................................... 51
Operation ......................................... 48
Self-test ........................................... 50
Odometer........................................... 193
Oil
see Engine oil
On-board computer
AMG menu ..................................... 202
Assistance menu ........................... 197
Audio menu ................................... 195
Convenience submenu .................. 201
Display messages .......................... 205
Displaying a service message ........ 270
Factory settings submenu ............. 202
Important safety notes .................. 190
Instrument cluster submenu .......... 199
Lighting submenu .......................... 200
Menu overview .............................. 193
Message memory .......................... 205
14Index

Trunk partition
Display message ............................ 230
General notes .................................. 92
Installing .......................................... 93
Opening/closing .............................. 93
Removing ......................................... 93
Turn signals
Display message ............................ 217
Switching on/off ........................... 110
Two-way radio
Frequencies ................................... 319
Installation ..................................... 319
Transmission output (maximum) .... 319
Type identification plate
see Vehicle identification plate
U
Umbrella holder................................. 250
Unlocking
Emergency unlocking ....................... 81
From inside the vehicle (central
unlocking button) ............................. 80
Upshift indicator (on-board com-
puter, Mercedes-AMG vehicles)....... 202
USB devices
Connecting to the Media Inter-
face ...............................................248
V
Vehicle
Correct use ...................................... 28
Data acquisition ............................... 29
Display message ............................ 228
Electronics ..................................... 319
Equipment ....................................... 25
Individual settings .......................... 199
Limited Warranty .............................29
Loading .......................................... 303
Locking (in an emergency) ............... 81
Locking (SmartKey) .......................... 74
Lowering ........................................ 317
Maintenance .................................... 26
Parking for a long period ................ 149
Pulling away................................... 128
Raising ........................................... 314
REACH Regulation ........................... 28
Reporting problems ......................... 29
Securing from rolling away ............ 314
Tow-starting ................................... 288
Towing away .................................. 288
Transporting .................................. 290
Unlocking (in an emergency) ........... 81
Unlocking (SmartKey)...................... 74
Vehicle data ................................... 326
Vehicle battery
see Battery (vehicle)
Vehicle data....................................... 326
Vehicle dimensions........................... 326
Vehicle emergency locking................ 81
Vehicle identification number
see VIN
Vehicle identification plate.............. 320
Vehicle level
Active Body Control (ABC)
(except Mercedes-AMG vehicles) .. 168
Active Body Control (ABC)
(Mercedes-AMG vehicles) .............. 170
Display message ............................ 221
Vehicle tool kit.................................. 277
Video
Operating the DVD ......................... 196
see also Digital Operator's Man-
ual .................................................. 243
VIN
Seat ............................................... 321
Type plate ...................................... 320
W
Warning and indicator lamps
ABS ................................................ 236
Active Brake Assist ........................ 241
Brake Assist ................................... 241
Brakes ........................................... 235
Check Engine ................................. 239
Coolant .......................................... 239
Distance warning ........................... 241
ESP®.............................................. 236
ESP®OFF ....................................... 237
Fuel tank ........................................ 239
General notes ................................ 233
Parking brake ................................ 238
PASSENGER AIR BAG ...................... 41
Reserve fuel................................... 239
Restraint system ............................ 238
Index21

ing interference that may cause undesiredoperation of the device."
Diagnostics connection
The diagnostics connection is used for con-necting diagnostic equipment at a qualifiedspecialist workshop.
GWARNING
If you connect equipment to a diagnostics
connection in the vehicle, it may affect the
operation of vehicle systems. As a result,
the operating safety of the vehicle could be
affected. There is a risk of an accident.
Only connect equipment to a diagnostics
connection in the vehicle, which is approved
for your vehicle by Mercedes-Benz.
GWARNING
Objects in the driver's footwell may restrict
the clearance around the pedals or block a
depressed pedal. This jeopardizes the oper-
ating and road safety of the vehicle. There is
a risk of an accident.
Stow all objects securely in the vehicle so
that they do not get into the driver's foot-
well. When using floormats or carpets, make
sure that they are properly secured so that
they do not slip or obstruct the pedals. Do
not place several floormats or carpets on
top of one another.
!If the engine is switched off and equip-ment on the diagnostics connection is used,the starter battery may discharge.
Connecting equipment to the diagnostics con-nection can lead to emissions monitoringinformation being reset, for example. This maylead to the vehicle failing to meet the require-ments of the next emissions test during themain inspection.
Qualified specialist workshop
An authorized Mercedes-Benz Center is aqualified specialist workshop. It has the neces-sary specialist knowledge, tools and qualifica-tions to correctly carry out the work required
on your vehicle. This is especially the case forwork relevant to safety.
Observe the notes in the Maintenance Book-let.
Always have the following work carried out atan authorized Mercedes-Benz Center:
Rwork relevant to safety
Rservice and maintenance work
Rrepair work
Ralterations, installation work and modifica-tions
Rwork on electronic components
Correct use
If you remove any warning stickers, you or oth-ers could fail to recognize certain dangers.Leave warning stickers in position.
Observe the following information when driv-ing your vehicle:
Rthe safety notes in this manual
Rtechnical data for the vehicle
Rtraffic rules and regulations
Rlaws and safety standards pertaining tomotor vehicles
Information about the REACH decree
The REACH regulation (Regulation (EC) no.1907/2006, Article 33) lays down an informa-tion obligation for substances of very high con-cern (SVHC).
Daimler AG acts in good faith to avoid usingthese SVHCs and to allow the customer tohandle these substances safely. In accordancewith supplier information and internal productinformation from Daimler AG, SVHCs thataccount for more than 0.1 percent by weightof individual products in this vehicle areknown.
More detailed information can be found at thefollowing addresses:
Rhttp://www.daimler.com/reach(Germanversion)
Rhttp://www.daimler.com/reach/en(English version)
28Operating safety
Introduction

Problems with your vehicle
If you should experience a problem with yourvehicle, particularly one that you believe mayaffect its safe operation, we urge you to con-tact an authorized Mercedes-Benz Centerimmediately to have the problem diagnosedand rectified. If the problem is not resolved toyour satisfaction, please discuss the problemagain with an authorized Mercedes-Benz Cen-ter or, if necessary, contact us at one of thefollowing addresses.
In the USA
Mercedes-Benz USA, LLC
Customer Assistance Center
One Mercedes-Benz Drive
Sandy Springs, GA 30328
In Canada
Mercedes-Benz Canada, Inc.
Customer Relations Department
98 Vanderhoof Avenue
Toronto, Ontario M4G 4C9
Reporting safety defects
USA only:
The following text is published as required ofmanufacturers under Title 49, Code of U.S.Federal Regulations, Part 575 pursuant to the"National Traffic and Motor Vehicle Safety Actof 1966".
If you believe that your vehicle has a defectwhich could cause a crash or could causeinjury or death, you should immediately informthe National Highway Traffic Safety Adminis-tration (NHTSA) in addition to notifyingMercedes-Benz USA, LLC.
If NHTSA receives similar complaints, it mayopen an investigation, and if it finds that asafety defect exists in a group of vehicles, itmay order a recall and remedy campaign.However, NHTSA cannot become involved inindividual problems between you, your dealer,or Mercedes-Benz USA, LLC.
To contact NHTSA, you may call the VehicleSafety Hotline toll-free at1-888-327-4236(TTY: 1-800-424-9153); go tohttp://www.safercar.gov; or write to:Administrator, NHTSA, 400 Seventh Street,SW., Washington, DC 20590.
You can also obtain other information aboutmotor vehicle safety from
http://www.safercar.gov
Limited Warranty
!Observe the notes in this Operator's Man-ual regarding the correct operation of yourvehicle and possible damage to the vehicle.Damage to the vehicle which is caused byviolation of these notes is not covered bythe Mercedes-Benz implied warranty or thenew or used-vehicle warranty.
QR code for rescue card
The QR codes are secured in the fuel filler flapand on the opposite side on the B-pillar. In theevent of an accident, rescue services can usethe QR code to quickly find the appropriaterescue card for your vehicle. The current res-cue card contains the most important informa-tion about your vehicle in a compact form, e.g.the routing of the electric cables.
You can find more information at http://www.mercedes-benz.de/qr-code.
Data storage
Data storage
A wide range of electronic components in yourvehicle contain data memories.
These data memories temporarily or perma-nently store technical information about:
Rthe vehicle's operating state
Rincidents
Rmalfunctions
In general, this technical information docu-ments the state of a component, a module, asystem or the surroundings.
These include, for example:
Roperating conditions of system components.For example, fluid levels
Rthe vehicle's status messages and those ofits individual components, e.g. number ofwheel revolutions/speed, deceleration inmovement, lateral acceleration, acceleratorpedal position
Data storage29
Introduction
Z

pants coming into contact with parts of thevehicle interior or being ejected from the vehi-cle. Furthermore, the seat belt helps to keepthe vehicle occupant in the best position inrelation to the air bag.
The seat belt system comprises:
RSeat belts
REmergency Tensioning Devices and seat beltforce limiters
If the seat belt is pulled quickly or sharply bythe seat belt guide, the inertia reel locks. Thebelt strap cannot be extracted any further.
The Emergency Tensioning Device tightens theseat belt in an accident, pulling the belt closeagainst the body. However it does not pull thevehicle occupant back in the direction of thebackrest.
The Emergency Tensioning Device does notcorrect an incorrect seat position or the rout-ing of an incorrectly fastened seat belt.
When triggered, a seat belt force limiter helpsto reduce the force exerted by the seat belt onthe vehicle occupant.
The seat belt force limiters are synchronizedwith the front air bags which absorb part ofthe deceleration force. This can reduce theforce exerted on the vehicle occupants duringan accident.
!If the front-passenger seat is not occupied,do not engage the seat belt tongue in thebuckle on the front-passenger seat. Other-wise, in the event of an accident the Emer-gency Tensioning Device and the sideimpact air bag, in addition to other systems,may be triggered and have to be replaced.
Important safety notes
The use of seat belts and child restraint sys-tems is required by law in:
Rall 50 states
Rthe U.S. territories
Rthe District of Columbia
Rall Canadian provinces
Even where this is not required by law, all vehi-cle occupants should correctly fasten theirseat belts before starting the journey.
GWARNING
If the seat belt is not worn correctly, it can-
not perform its intended protective function.
An incorrectly fastened seat belt can also
cause injuries, for example, in the event of
an accident or when braking or changing
direction abruptly. This poses an increased
risk of injury or even fatal injury.
Always ensure that all vehicle occupants
have their seat belts fastened correctly and
are sitting properly.
The components of the restraint system workin conjunction with each other. They can onlydeploy their protective function if, at all times,all vehicle occupants:
Rhave fastened their seat belts correctly(Ypage 43)
Rhave the seat and head restraint adjustedproperly (Ypage 97)
GWARNING
The seat belt does not offer the intended
level of protection if you have not moved the
backrest to an almost vertical position.
When braking or in the event of an accident,
you could slide underneath the seat belt and
sustain abdomen or neck injuries, for exam-
ple. This poses an increased risk of injury or
even fatal injury.
Adjust the seat properly before beginning
your journey. Always ensure that the back-
rest is in an almost vertical position and that
the shoulder section of your seat belt is
routed across the center of your shoulder.
GWARNING
Persons less than 5 ft (1.50 m) tall cannot
wear the seat belt correctly without an addi-
tional and suitable restraint system. If the
seat belt is not worn correctly, it cannot per-
form its intended protective function. An
incorrectly fastened seat belt can also cause
injuries, for example, in the event of an acci-
dent or when braking or changing direction
abruptly. This poses an increased risk of
injury or even fatal injury.
For this reason, always secure persons
under 5 ft (1.50 m) tall in suitable additional
restraint systems.
42Occupant safety
Safety

If a child younger than twelve years old andunder 5 ft (1.50m)in height is traveling in thevehicle:
Ralways secure the child in a child restraintsystem suitable for this Mercedes-Benzvehicle. The child restraint system must beappropriate to the age, weight and size ofthe child.
Ralways observe the instructions and safetynotes on "Children in the vehicle"(Ypage 57) in addition to the childrestraint system manufacturer's installationand operating instructions
Ralways observe the instructions and safetynotes on the "Occupant Classification Sys-tem (OCS)" (Ypage 48)
GWARNING
The seat belts may not perform their inten-
ded protective function if:
Rthey are damaged, modified, extremely
dirty, bleached or dyed
Rthe seat belt buckle is damaged or
extremely dirty
Rthe Emergency Tensioning Devices, belt
anchorages or inertia reels have been
modified.
Seat belts may be damaged in an accident,
although the damage may not be visible, e.g.
due to splinters of glass. Modified or dam-
aged seat belts may tear or fail, e.g. in an
accident. Modified Emergency Tensioning
Devices could accidentally trigger or fail to
deploy when necessary. This poses an
increased risk of injury or even fatal injury.
Never modify the seat belts, Emergency Ten-
sioning Devices, belt anchorages and inertia
reels. Make sure that the seat belts are
undamaged, not worn out and clean. Follow-
ing an accident, have the seat belts checked
immediately at a qualified specialist work-
shop.
Only use seat belts that have been approvedfor your vehicle by Mercedes-Benz.
Proper use of the seat belts
Observe the safety notes on the seat belt(Ypage 42).
Every vehicle occupant must observe the fol-lowing notes to ensure a properly worn seatbelt can provide full protection. Also makesure that all vehicle occupants are alwayswearing the seat belt correctly while the vehi-cle is in motion.
When fastening the seat belt, always makesure that:
Rthe seat belt buckle tongue is inserted onlyinto the belt buckle belonging to that seat
Rthe seat belt is pulled tight across your body
Avoid wearing bulky clothing, e.g. a wintercoat.
Rthe seat belt is not twisted
Only then can the forces which occur be dis-tributed over the area of the belt.
Rthe shoulder section of the belt is routedacross the center of your shoulder
The shoulder section of the seat belt shouldnot touch your neck or be routed under yourarm or behind your back.
Rthe lap belt is taut and passes across yourlap as low down as possible
The lap belt must always be routed acrossyour hip joints and not across your abdo-men. This applies particularly to pregnantwomen. If necessary, push the lap belt downto your hip joint and pull it tight using theshoulder section of the belt.
Rthe seat belt is not routed across sharp,pointed or fragile objects
If you have such items located on or in yourclothing, e.g. pens, keys or eyeglasses,store these in a suitable place.
Ronly one person is using a seat belt
Infants and children must never travel sit-ting on the lap of a vehicle occupant. In theevent of an accident, they could be crushedbetween the vehicle occupant and seat belt.
Robjects are never secured with a seat belt ifthe seat belt is also being used by one ofthe vehicle's occupants
Also ensure that there are never objectsbetween a person and the seat, e.g. cush-ions.
Seat belts are only intended to secure andrestrain vehicle occupants. Always observe thenotes in the "Stowage options/compartments"
Occupant safety43
Safety
Z

section for securing objects, luggage or loads(Ypage 249).
Fastening seat belts
Observe the safety notes on the seat belt(Ypage 42) and the notes on correct use ofseat belts (Ypage 43).
Basic illustration
XAdjust the seat (Ypage 97).The seat backrest must be in an almostupright position.
XPull the seat belt smoothly out of seat beltguide

passenger seat belts are not fastened, a warn-ing tone sounds. A warning tone also soundswith increasing intensity for 60 seconds oruntil the driver or front passenger have fas-tened their seat belts.
If the driver or front passenger unfasten theirseat belts during the journey, the seat beltwarning is activated again.
Air bags
Introduction
The installation point of an airbag can be rec-ognized by the AIRBAG marking.
An airbag complements the correctly fastenedseat belt. It is no substitute for the seat belt.When deployed, an airbag can increase theprotection provided for the respective vehicleoccupant.
Not all airbags are deployed in an accident.The various airbags work independently ofeach other (Ypage 53).
However, no system available today can com-pletely eliminate injuries and fatalities.
It is also not possible to rule out a risk of injurycaused by an airbag due to the high speed atwhich the airbag must be deployed.
Important safety notes
GWARNING
If you do not sit in the correct seat position,
the air bag cannot protect as intended and
could even cause additional injury when
deployed. This poses an increased risk of
injury or even fatal injury.
To avoid hazardous situations, always make
sure that all of the vehicle's occupants:
Rhave fastened their seat belts correctly,
including pregnant women
Rare sitting correctly and maintain the
greatest possible distance to the air bags
Rfollow the following instructions
Always make sure that there are no objects
between the air bag and the vehicle's occu-
pants.
All vehicle occupants must observe the follow-ing notes to avoid risks posed by the airbagwhen it deploys.
RAdjust the seats properly before beginningyour journey. Always make sure that theseat is in an almost upright position. Thecenter of the head restraint must supportthe head at about eye level.
RMove the driver's and front-passenger seatsas far back as possible. The driver's seatposition must allow the vehicle to be drivensafely.
ROnly hold the steering wheel on the outside.This allows the airbag to be fully deployed.
RAlways lean against the backrest while driv-ing. Do not lean forward or lean against thedoor or side window. You may otherwise bein the deployment area of the airbags.
RAlways keep your feet in the footwell infront of the seat. Do not put your feet on thedashboard, for example. Your feet may oth-erwise be in the deployment area of the air-bag.
RFor this reason, always secure persons lessthan 5 ft (1.50 m) tall in suitable restraintsystems. Up to this height, the seat beltcannot be worn correctly.
If a child is traveling in your vehicle, alsoobserve the following notes:
RAlways secure children under twelve yearsof age and less than 5 ft (1.50 m) tall in suit-able child restraint systems.
RSecure a child to the front-passenger seatonly when the front-passenger front airbagis deactivated, and then only in a rearward-facing child restraint system. The front-passenger front airbag is deactivated whenthe PASSENGER AIR BAG OFF indicatorlamp is lit continuously (Ypage 41).
RAlways observe the instructions and safetynotes on the "Occupant Classification Sys-tem (OCS)" (Ypage 48) and on "Childrenin the vehicle" (Ypage 57) in addition tothe child restraint system manufacturer'sinstallation and operating instructions.
Objects in the vehicle interior may restrictthe airbag from functioning correctly.Toavoid risks resulting from the speed of the air-bag as it deploys, vehicle occupants mustensure the following points.
Occupant safety45
Safety
Z