check engine light MERCEDES-BENZ SL-Class 2016 R231 Owner's Manual

Coolant (engine)Checking the level ........................ .539
Display message ............................ 255
Filling capacity ............................... 607
Important safety notes .................. 606
Temperature (on-board computer,
Mercedes-AMG vehicles) ...............2 36
Temperature gauge ........................ 223
Warning lamp ................................. 278
Cooling
see Climate control
Copy protection (CD/DVD) ...............454
Copyright ............................................. 37
Cornering light function
Display message ............................ 252
Function/notes .............................1 26
Country-specific information (nav-
igation) ............................................... 376
Crash-responsive emergency light-
ing ....................................................... 129
Cruise control
Cruise control lever ....................... 180
Deactivating ................................... 182
Display message ............................ 263
Driving system ............................... 180
Function/notes .............................1 80
Important safety notes .................. 180
Setting a speed .............................. 181
Storing and maintaining current
speed ............................................. 181
Cup holder
Center console .............................. 518
Important safety notes .................. 518
Customer Assistance Center
(CAC) ..................................................... 35
Customer Relations Department ....... 35
D
Data
see Technical data
Data carrier
MUSIC REGISTER ........................... 457
Data medium
CD/DVD ........................................ 454
MP3 ............................................... 453
Date format, setting .......................... 308
Day design, setting ........................... 308 Daytime running lamps
Display message ............................ 254
Function/notes .............................1 22
Switching on/off (on-board com-
puter) ............................................. 233
Declarations of conformity ................. 34
Delayed switch-off
Exterior lighting (on-board com-
puter) ............................................. 234
Interior lighting .............................. 234
Deleting
Call lists ......................................... 398
Destination
Assigning to an address book
entry .............................................. 364
Destination (navigation)
Displaying information ................... 352
Entering a destination by address .. 324Entering a destination using the
map ............................................... 331
Entering a point of interest ............ 336
Entering using geo-coordinates ..... 332
Entering using Mercedes-Benz
Apps .............................................. 332
Saving ............................................ 363
Selecting from the destination
memory ......................................... 330
Selecting from the list of last des-
tinations ......................................... 330
Selecting storage options .............. 364
Storing after destination entry ....... 364
Storing during route guidance ....... 364
Destination memory (navigation)
Deleting an entry ........................... 365
Entering/saving your home
address .......................................... 329
Previous destinations .................... 366
Diagnostics connection ......................34
Dialing anumber (telephone) ...........389
Digital speedometer ......................... 226
DISC button
Activating audio CD or MP3 mode .. 448
Activating Bluetooth
®Audio .......... 465
Switchi ng on the Media Interfa
ce .. 468
Switching to the MUSIC REGIS-
TER ................................................ 458
Index9

Switching the hands-free micro-
phone on/off.....................................3 90
Switching wavebands (radio) ........... 438
System settings
Bluetooth
®..................................... 310
Date ............................................... 308
Language ....................................... 310
Text reader speed .......................... 310
Time ............................................... 308
Time zone ...................................... 309
Voice Control System .................... 310
T
Tachometer ........................................ 223
Tail lamps
Display message ............................ 253
see Lights
Tank content
Fuel gauge ....................................... 41
Technical data
Capacities ...................................... 603
Information ....................................6 00
Tires/wheels ................................. 593
Vehicle data ................................... 608
TELEAID
Call priority ....................................5 25
Downloading destinations
(COMAND) ..................................... 525
Downloading routes ....................... 528
Emergency call .............................. 522
General notes ................................ 521
Geo fencing ................................... 529
Locating a stolen vehicle ...............5 27
MB info call button ........................ 524
Remote vehicle locking .................. 527
Roadside Assistance button .......... 524
Search & Send ............................... 526
Self-test ......................................... 522
Speed alert ....................................5 29
System .......................................... 522
Triggering the vehicle alarm ........... 529
Vehicle Health Check .................... 528
Vehicle remote unlocking .............. 527
Telephone
Accepting a call (multifunction
steering wheel) .............................. 230
Accepting/ending a call ................ 389 Adjusting the volume for calls ....... 298
Calling (outgoing call) .................... 389
Calling via speed dial ..................... 390
Conference connection .................. 392
Connecting a mobile phone (gen-
eral information) ............................ 383
De-authorizing a mobile phone ...... 387
Display message ............................ 268
Ending an active call ...................... 392
Entering a number ......................... 389
Entering phone numbers ................ 389
External authorization (Blue-
tooth
®) ........................................... 386
Function restrictions ...................... 382
General notes ................................ 381
Incoming call ................................. 389
Making a ca
ll ................................. 392
Menu (on-board computer) ............ 229
Number from the phone book ........ 230
Operating options .......................... 382
Overview of functions .................... 390
Reception and transmission vol-
ume ............................................... 388
Redialing ........................................ 230
Rejecting a call .............................. 389
Rejecting/accepting a waiting
call ................................................. 391
Rejecting/ending a call ................. 230
Safety notes .................................. 381
Sending DTMF tones ...................... 391
Single call ...................................... 390
Switching hands-free microphone
on/off ............................................ 390
Text messages (SMS) .................... 400
Toggling ......................................... 392
Using the telephone ....................... 389
see Bluetooth
®
Telephone basic menu
Bluetooth®interface ...................... 387
Telephone number
Entering ......................................... 389
Temperature
Coolant .......................................... 223
Coolant (on-board computer,
Mercedes-AMG vehicles) ............... 236
Engine oil (on-board computer,
Mercedes-AMG vehicles) ............... 236
24Index

For more information about children traveling
with you in the vehicle and on child restraint
systems, see "Children in the vehicle"
(
Ypage 68).
Important safety notes
GWARNING
Modifications to the restraint system may
cause it to no longer work as intended. The
restraint system may then not perform its
intended protective function and may fail in an
accident or trigger unexpectedly, for example.
This poses an increased risk of injury or even fatal injury.
Never modify parts of the restraint system.
Never tamper with the wiring, the electronic
components or their software.
If it is necessary to modify an air bag system to
accommodate a person with disabilities, con-
tact an authorized Mercedes-Benz Center for
details. USA only: for further information con-
tact our Customer Assistance Center at
1-800-FOR-MERCedes (1‑800‑367 ‑6372).
Restraint system warning lamp
The functions of the restraint system are
checked after the ignition is switched on and
at regular intervals while the engine is run-
ning. Therefore, malfunctions can be detec-
ted in good time.
The 6 restraint system warning lamp in
the instrument cluster lights up when the igni-
tion is switched on. It goes out no later than a
few seconds after the vehicle is started. The
components of the restraint system are in
operational readiness.
A malfunction has occurred if the 6
restraint system warning lamp:
Rdoes not light up after the ignition is
switched on
Rdoes not go out after a few seconds with
the engine running
Rlights up again while the engine is running
GWARNING
If restraint system is malfunctioning, restraint
system components may be triggered unin-
tentionally or might not be triggered at all in
the event of an accident with a high rate of
vehicle deceleration. This can affect the Emer- gency Tensioning Device or air bag, for exam-
ple. This poses an increased risk of injury or
even fatal injury.
Have the restraint system checked and
repaired in a qualified specialist workshop as
soon as possible.
PASSENGER AIR BAG indicator lamp
PASSENGER AIR BAG OFF indicator lamp :
and PASSENGER AIR BAG ON indicator
lamp ;are part of the Occupant Classifica-
tion System (OCS).
The indicator lamps display the status of the
front-passenger front air bag.
RPASSENGER AIR BAG ON lights up: the
front-passenger front air bag is enabled. If,
in the event of an accident, all deployment
criteria are met, the front-passenger front
air bag is deployed.
RPASSENGER AIR BAG OFF lights up: the
front-passenger front air bag is deactiva-
ted. It will then not be deployed in the event of an accident.
Occupant safety51
Safety
Z

The SmartKey centrally locks/unlocks:
Rthe doors
Rthe trunk lid
Rthe glove box
Rthe stowage compartment under the arm-
rest
Rthe stowage compartment in the rear com-
partment
Rthe fuel filler flap
The turn signals flash once when unlocking
and three times when locking.
You can also set an audible signal to confirm
that the vehicle has been locked. The audible
signal can be activated and deactivated using
the on-board computer (
Ypage 235).
When it is dark, the surround lighting also
comes on if it is activated in the on-board
computer (
Ypage 234).
KEYLESS-GO
General notes
Bear in mind that the engine can be started by
any of the vehicle occupants if there is a KEY-
LESS-GO key in the vehicle.
Locking/unlocking centrally
You can start, lock or unlock the vehicle using
KEYLESS-GO. To do this, you only need carry
the SmartKey with you. You can combine the functions of KEYLESS-GO with those of a con-
ventional SmartKey. Unlock the vehicle by
using KEYLESS-GO, for instance, and lock it
using the &button on the SmartKey.
When locking or unlocking with KEYLESS-GO,
the distance between the SmartKey and the
corresponding door handle must not be
greater than 3 ft (1 m). A check which periodically establishes a radio
connection between the vehicle and the
SmartKey determines whether a valid Smart-
Key is in the vehicle. This occurs, for example:
Rwhen the external door handles are
touched
Rwhen starting the engine
Rwhile the vehicle is in motion
XTo unlock the vehicle:
touch the inner
surface of the door handle.
XTo lock the vehicle: touch sensor sur-
face :.
XConvenience closing feature: touch
recessed sensor surface ;for an exten-
ded period.
Further information on the convenience
closing feature (
Ypage 99).
XTo unlock the trunk lid: pull the handle on
the trunk lid.
The vehicle only unlocks the trunk lid.
Deactivating and activating
If you do not intend to use a SmartKey for an
extended period of time, you can deactivate
the KEYLESS-GO function of the SmartKey.
The SmartKey will then use very little power,
thereby conserving battery power. For the
purposes of activation/deactivation, the
vehicle must not be nearby.
SmartKey83
Opening and closing
Z

ProblemPossible causes/consequences andMSolutions
The engine cannot be
started using the
SmartKey.the on-board voltage is too low.
XSwitch off non-essential consumers, e.g. seat heating or interior
lighting, and try to start the engine again.
If this does not work:
XCheck the starter battery and charge it if necessary
(
Ypage 557).
or
XJump-start the vehicle (Ypage 559).
or
XConsult a qualified specialist workshop.
The engine cannot be
started using KEYLESS-
GO. The SmartKey is in
the vehicle.The vehicle is locked.
XUnlock the vehicle and try to start the vehicle again.
There is interference from a powerful source of radio waves.
XStart your vehicle with the SmartKey in the ignition lock.
Doors
Important safety notes
GWARNING
If children are left unsupervised in the vehicle,
they could:
Ropen the doors, thus endangering other
people or road users.
Rget out and disrupt traffic.
Roperate the vehicle's equipment.
Additionally, children could set the vehicle in
motion if, for example, they:
Rrelease the parking brake.
Rshifting the automatic transmission out of
park position P
RStart the engine.
There is a risk of an accident and injury.
When leaving the vehicle, always take the
SmartKey with you and lock the vehicle. Never
leave children or animals unattended in the
vehicle. Always keep the SmartKey out of
reach of children.
Unlocking and opening doors from
the inside
!
The side windows will not open/close if
the battery is discharged or if the side win-
dows have iced up. It will then not be pos-
sible to close the door. Do not attempt to
force the door closed. You could otherwise
damage the door or the side window.
You can open a door from inside the vehicle
even if it has been locked.
If the vehicle was previously locked with the
SmartKey or with KEYLESS-GO, opening the
vehicle from the inside will activate the anti-
theft alarm system. Switch off the alarm
(
Ypage 80).
88Doors
Opening and closing

Useful information
i
This Operator's Manual describes all
models and all standard and optional equip-
ment of your vehicle available at the time of
publication of the Operator's Manual.
Country-specific differences are possible.
Please note that your vehicle may not be
equipped with all features described. This
also applies to safety-related systems and
functions.
iRead the information on qualified special-
ist workshops (
Ypage 34).
Correct driver's seat position
GWARNING
You could lose control of your vehicle if you do the following while driving:
Radjust the driver's seat, head restraint,
steering wheel or mirrors
Rfasten the seat belt
There is a risk of an accident.
Adjust the driver's seat, head restraint, steer-
ing wheel and mirror and fasten your seat belt before starting the engine.
XObserve the safety guidelines on seat
adjustment (
Ypage 109).
XMake sure that seat =is adjusted prop-
erly.
Electrical seat adjustment (
Ypage 110)
When adjusting the seat, make sure that:
Ryou are as far away from the driver's air bag
as possible
Ryou are sitting in a normal upright position
Ryou can fasten the seat belt properly
Ryou have moved the backrest to an almost
vertical position
Ryou have set the seat cushion angle so that
your thighs are gently supported
Ryou can depress the pedals properly
XCheck whether the head restraint is adjus-
ted properly.
When doing so, make sure that you have
adjusted the head restraint so that the back
of your head is supported at eye level by the
center of the head restraint.
XObserve the safety notes on steering col-
umn adjustment (
Ypage 114).
XMake sure that steering wheel :is adjus-
ted properly.
Adjusting the steering wheel electrically
(
Ypage 114)
When adjusting the steering wheel column,
make sure that:
Ryou can hold the steering wheel with your
arms slightly bent
Ryou can move your legs freely
Ryou can see all the displays in the instru-
ment cluster clearly
XObserve the safety guidelines for seat belts
(
Ypage 52).
XCheck whether you have fastened seat
belt ;properly (
Ypage 54).
108Correct driver's seat position
Seats, steering wheel and mirrors

Problems with the windshield wipers
ProblemPossible causes/consequences andMSolutions
The windshield wipers
are jammed.Leaves or snow, for example, may be obstructing the windshield
wiper movement. The wiper motor has been deactivated.
XFor safety reasons, you should remove the SmartKey from the
ignition lock.
or
XSwitch off the engine using the Start/Stop button and open the driver's door.
XRemove the cause of the obstruction.
XSwitch the windshield wipers back on.
The windshield wipers
fail completely.The windshield wiper drive is malfunctioning.
XSelect another wiper speed on the combination switch.
XHave the windshield wipers checked at a qualified specialist
workshop.
Windshield wipers133
Lights and windshield wipers
Z

iIf you are driving with the fuel filler cap
open, the 8reserve fuel warning lamp
flashes. The ;Check Engine warning
lamp may also light up. A message appears
in the multifunction display (
Ypage 258).
For further information on warning and indi- cator lamps in the instrument cluster, see
(
Ypage 278).
170Refueling
Driving and parking

!Depressing the brake pedal constantly
results in excessive and premature wear to
the brake pads.
If the brakes have been subjected to a heavy
load, do not stop the vehicle immediately, but
drive on for a short while. This allows the air-
flow to cool the brakes more quickly.
Wet roads
If you have driven for a long time in heavy rain
without braking, there may be a delayed reac-
tion from the brakes when braking for the first
time. This may also occur after the vehicle has been washed or driven through deep water.
You then have to depress the brake pedal
more firmly. Maintain a greater distance from
the vehicle in front.
After driving on a wet road or having the vehi- cle washed, brake firmly while paying atten-
tion to the traffic conditions. This will warm up
the brake discs, thereby drying them more
quickly and protecting them against corro-
sion.
Limited braking performance on salt-
treated roads
If you drive on salted roads, a layer of salt
residue may form on the brake discs and
brake pads. This can result in a significantly
longer braking distance.
RBrake occasionally to remove any possible
salt residue. Make sure that you do not
endanger other road users when doing so.
RCarefully depress the brake pedal and the
beginning and end of a journey.
RMaintain a greater distance to the vehicle
ahead.
Servicing the brakes
!If the brake warning lamp lights up in the
instrument cluster and you hear a warning
tone even though the parking brake has
been released, the brake fluid level may be too low. Observe additional warning mes-
sages in the multifunction display.
The brake fluid level may be too low due to
brake pad wear or leaking brake lines.
Have the brake system checked immedi-
ately. This work should be carried out at a
qualified specialist workshop.
!As the ESP®system operates automati-
cally, the engine and the ignition system
must be switched off (SmartKey in position
0 or 1in the ignition lock or Start/Stop
button in position 0or 1) when:
Rtesting the parking brake on a brake
dynamometer.
Ryou intend to have the vehicle towed with
the front axle raised.
Braking maneuvers triggered automatically by ESP
®may seriously damage the brake
system.
All checks and maintenance work on the
brake system must be carried out at a quali-
fied specialist workshop.
Have brake pads installed and brake fluid
replaced at a qualified specialist workshop.
If the brake system has only been subject to
moderate loads, you should test the function-
ality of your brakes at regular intervals.
Information on BAS (Brake Assist)
(
Ypage 72).
Mercedes-Benz recommends that you only
have brake pads/linings installed on your
vehicle which have been approved for
Mercedes-Benz vehicles or which correspond
to an equivalent quality standard. Brake
pads/linings which have not been approved
for Mercedes-Benz vehicles or which are not
of an equivalent quality could affect your vehi-
cle's operating safety.
Mercedes-Benz recommends that you only
use brake fluid that has been specially
approved for your vehicle by Mercedes-Benz,
or which corresponds to an equivalent quality
standard. Brake fluid which has not been
approved for Mercedes-Benz vehicles or
Driving tips177
Driving and parking
Z

body contours and posture of a person stand-
ing upright.
Pedestrian recognition is then switched on
automatically if:
RNight View Assist Plus is activated.
Ryou are driving faster than approximately
6 mph (10 km/h).
Rit is dark.
If pedestrian recognition is active, symbol ;
appears. Persons who are detected are high-
lighted by framing =. If the pedestrian rec-
ognition system has brought a pedestrian to
your attention, look through the windshield to evaluate the situation.
Animal recognition
Animals can be recognized in the following
situations:
Rdarkness
Routside built-up areas
Rbelow an outside temperature of 90 ‡
(32 †)
Nigh tView Assist Pl us can recognize larger
animals such as deer, co wsor horses using
typical characteristics.
The system does not detect:
Rsmaller animals, e.g. dogs and cats
Ranimals whose silhouette is not clearly rec-
ogniza ble
When detecte d,animals are marked with
small color frame corners. Incontrast to
pede strian recognit ion, thereisno separate
stand bysymbol inthe multifunction display.
Activating/deactivating Night View
Assist Plus
Activation conditions
You can only activate Night View Assist Plus if
all of the following cond itions are met:
Rthe ignit ionisswitched on (Ypage 151) or
the engine has been started.
Rthe light switch is intheà orL posi-
tion.
Rreverse gear has not been engaged.
Activating Night View Assist Plus
XPress button :.
The Night View Assist Plus display appears
in the COMAND display.
iThe infrared headlamps only switch onin
the dark from speeds of approximately
6 mph (10 km/h). This means that you do
not have the full visual range whilethe veh i-
cle isstationary and cannot check whether
Night View Assist Plus isworking. The infra-
red headlamps are deactivated at speeds
below 3 mph (5 km/h). The Night View
image continues to be displayed.
Automatic activation
You can use COMAND to select the Night
View Assist Automatic Activation
option. The pedestrian and animal search
function remains active even when the Night
View image is not displayed. In the dark, in
unlit surroundings and at speeds of more than
60 km/h, the Night View image is automati-
212Driving systems
Driving and parking