check engine light MERCEDES-BENZ SLK-Class 2016 R172 Owner's Manual

Authorizedworkshop
see Qualified specialist workshop
AUT O lights
Dis play message ............................ 227
see Lights
Aut oma tic car wash (care) ...............282
Automatic engine start (ECO start/
stop function) ....................................1 45
Automatic engine switch-off (ECO
start/stop function) .......................... 144
Automatic headlamp mode .............. 108
Automatic transmission
Accelerator pedal position ............. 151
Automatic drive program ...............1 53
Changing gear ............................... 151
Display message ............................ 236
Driving tips ....................................1 51
Emergency running mode .............. 157
Engaging the park position ............ 149
Kickdown ....................................... 152
Manual drive program .................... 153
Manual drive program (vehicles
with Sports package AMG) ............ 155
Oil temperature (on-board com-
puter, Mercedes-AMG vehicles) ..... 208
Overview ........................................ 148
Problem (malfunction) ................... 157
Program selector button ................ 152
Pulling away ................................... 142
Releasing the parking lock man-
ually ............................................... 157
Selector lever ................................ 148
Starting the engine ........................ 142
Steering wheel paddle shifters ...... 152
Transmission position display ........ 149
Transmission positions .................. 151
Automatic transmission emer-
gency mode ....................................... 157
B
Backup lamp
Changing bulbs .............................. 117
BAS (Brake Assist System) ................. 62
Battery (SmartKey)
Checking .......................................... 75
Important safety notes .................... 75
Replacing ......................................... 75 Battery (vehicle)
Charging ........................................ 298
Display message ............................ 228
Important safety notes .................. 296
Jump starting ................................. 299
Overview ........................................ 296
Belt
see Seat belts
Blind Spot Assist
Activating/deactivating ................. 203
Display message ............................ 231
Notes/function .............................. 188
Brake Assist
see BAS (Brake Assist System)
Brake fluid
Display message ............................ 218
Notes ............................................. 350
Brake force distribution
see EBD (electronic brake force
distribution)
Brake lamps
Display message ............................ 225
Brakes
ABS .................................................. 61
Adaptive Brake Assist ...................... 64
BAS .................................................. 62
Brake fluid (notes) ......................... 350
Display message ............................ 212
EBD .................................................. 69
High-performance brake system .... 167
Important safety notes .................. 165
Maintenance .................................. 166
Parking brake ................................ 161
Riding tips ...................................... 165
Warning lamp ................................. 243
Breakdown
Where will I find...? ........................ 290
see Flat tire
see Towing away
Brightness control (instrument
cluster lighting) ................................... 31
Bulbs
see Replacing bulbs
Index5

CockpitOverview .......................................... 30
see Instrument cluster
Collapsible spare wheel
Inflating ........................................ .340
see Emergency spare wheel
COLLISION PREVENTION ASSIST
PLUS
Activating/deactivating ................. 203
Display message ............................ 219
Operation/notes .............................. 62
COMAND display
Cleaning ......................................... 286
Combination switch .......................... 110
Compass
Calibrating ..................................... 273
Calling up ....................................... 272
Setting ...........................................2 72
Consumption statistics (on-board
computer) .......................................... 197
Convenience closing feature .............. 85
Convenience opening feature
see Side windows
Coolant (engine)
Checking the level ......................... 279
Display message ............................ 227
Filling capacity ............................... 351
Important safety notes .................. 350
Temperature (on-board computer,
Mercedes-AMG vehicles) ...............2 08
Temperature gauge ........................ 195
Warning lamp ................................. 249
Cooling
see Climate control
Copyright ............................................. 28
Cornering light function
Display message ............................ 224
Function/notes .............................1 11
Crash-responsive emergency light-
ing ....................................................... 114
Cruise control
Cruise control lever ....................... 169
Deactivating ................................... 170
Display message ............................ 233
Driving system ............................... 168
Function/notes .............................1 68
Important safety notes .................. 168 Setting a speed ............................
.. 169
Stori
ng and maintaining current
speed ............................................. 169
Cup holder
Center console .............................. 257
Important safety notes .................. 256
Customer Assistance Center
(CAC) ..................................................... 26
Customer Relations Department ....... 26
D
Dashboard
see Instrument cluster
Data
see Technical data
Daytime running lamps
Display message ............................ 226
Function/notes .............................1 08
Switching on/off (on-board com-
puter) ............................................. 205
Declarations of conformity ................. 25
Delayed switch-off
Exterior lighting (on-board com-
puter) ............................................. 205
Interior lighting .............................. 206
Diagnostics connection ......................25
Digital speedomete r........................ .198
Display messages
ASSYST PLUS ................................ 280
Calling up (on-board computer) ..... 211
Driving systems .............................2 30
Engine ............................................ 227
General notes ................................ 211
Hiding (on-board computer) ........... 211
KEYLESS-GO .................................. 240
Lights ............................................. 224
Safety systems .............................. 212
SmartKey ....................................... 240
Tires ............................................... 234
Vehicle ...........................................2 36
Distance recorder .............................1 97
Distance warning (warning lamp) .... 251
Distance warning function
Function/notes ................................ 63
DISTRONIC PLUS
Cruise control lever ....................... 172
Deactivating ................................... 176
Index7

EBD (electronic brake force distri-
bution)Display message ............................ 214
Function/notes ................................ 69
ECO display
Function/notes ............................ .164
On-board computer ....................... 198
ECO start/stop function
Automatic engine start .................. 145
Automatic engine switch-off .......... 144
Deactivating/activating ................. 145
General information ....................... 143
Important safety notes .................. 143
Introduction ................................... 143
Electronic Stability Program
see ESP
®(Electronic Stability Program)
Emergency
Automatic measures after an acci-
dent ................................................. 57
Emergency release
Driver's door ....................................8 0
Trunk ............................................... 82
Vehicle ............................................. 80
Emergency spare wheel
General notes ................................ 339
Important safety notes .................. 339
Removing ....................................... 340
Stowing .......................................... 340
Technical data ...............................3 42
Emergency Tensioning Devices
Activation ......................................... 54
Emissions control
Service and warranty information .... 22
Engine
Check Engine warning lamp ........... 249
Display message ............................ 227
ECO start/stop function ................ 143
Engine number ............................... 346
Irregular running ............................ 147
Jump-starting ................................. 299
Starting problems .......................... 147
Starting the engine with the
Sma

rtKey ....................................... 142
Starting with KEYLESS-GO ............. 142
Switching off .................................. 161
Tow-starting (vehicle) ..................... 303
Engine electronics
Notes ............................................. 344 Problem (malfunction) ................... 147
Engine oil
Adding ...........................................2 78
Additives ........................................ 349
Checking the oil level ..................... 277
Checking the oil level using the
dipstick .......................................... 277
Display message ............................ 229
Filling capacity ............................... 349
Notes about oil grades ................... 349
Notes on oil level/consumption .... 277
Temperature (on-board computer,
Mercedes-AMG vehicles) ...............2 08
Viscosity ........................................ 349
ESP
®(Electronic Stability Pro-
gram)
AMG menu (on-board computer) ... 208
Characteristics ................................. 66
Deactivating/activating (except
Mercedes‑ AMG vehicles) ................. 66
Deactivating/activating
(Mercedes‑AMG vehicles) ................ 67
Display message ............................ 212
Function/notes ................................ 65
General notes .................................. 65
Important safety information ........... 66
Warning lamp ................................. 245
ETS/4ETS (Electronic Traction Sys-
tem) ...................................................... 66
Exhaust check ................................... 164
Exhaust pipe (cleaning instruc-
tions) ..................................................2 85
Exterior lighting
Setting options .............................. 108
see Lights
Exterior mirrors
Adjusting ....................................... 103
Dipping (automatic) ....................... 104
Folding in when locking (on-board
computer) ...................................... 207
Folding in/out (automatically) ....... 104
Folding in/out (electrically) ........... 104
Out of position (troublesho oting) ... 104
Sto

ring settings (memory func-
tion) ............................................... 106
Storing the parking position .......... 105
Eyeglasses compartment ................. 255
Index9

Opening/closing (front) ...................83
Overview .......................................... 83
Problem (malfunction) ..................... 86
Resetting ......................................... 85
Reversing feature ............................. 83
SmartKey
Changing the battery ....................... 75
Changing the programming .............7 4
Checking the battery ...................... .75
Convenience opening feature .......... 84
Dis play message ............................ 240
Door central locking/unlocking ...... .72
Important safety notes .................... 72
Loss .................................................7 7
Mechanical key ................................ 74
Opening/closing the roof ................8 8
Overview .......................................... 72
Positions (ignition lock) ................. 139
Problem (malfunction) ..................... 77
Starting the engine ........................ 142
Snow chains ...................................... 311
Sockets
Center console .............................. 259
General notes ................................ 259
Under the armrest .........................2 59
Spare wheel
Stowing .......................................... 340
Special seat belt retractor .................. 58
Specialist workshop ............................ 25
Speed, controlling
see Cruise control
Speedometer
Digital ............................................ 198
In the Instrument cluster ................. 31
Segments ...................................... 194
Selecting the display unit ...............2 04
SPORT handling mode
Deactivating/activa ting
(Mercedes-AMG vehicl
es) ................ 67
Warning lamp ................................. 246
Standing lamps
Display message ............................ 226
Switching on/off ........................... 110
Start/stop function
see ECO start/stop function
Starting (engine) ................................ 141
Steering (display message) .............. 238Steering wheel
Adjusting (electrically) ................... 101
Adjusting (manually) ...................... 101
Button overview ............................... 33
Buttons (on-board computer) ......... 195
Cleaning ......................................... 286
Important safety notes .................. 100
Paddle shifters ............................... 152
Storing settings (memory func-
tion) ............................................... 106
Steering wheel paddle shifters ........ 152
Stopwatch (RACETIMER) ................... 208
Stowage areas ................................... 254
Stowage compartments
Armrest (under) ............................. 255
Center console .............................. 255
Cup holders ................................... 256
Door ............................................... 255
Eyeglasses compartment ............... 255
Glove box ....................................... 254
Important safety information ......... 254
Rear wall ........................................ 255
Stowage net ................................... 256
Stowage net ....................................... 256
Summer tires ..................................... 310
Sun visor ............................................ 257
Surround lighting (on-board com-
puter) .................................................. 205
Switching air-recirculation mode
on/off ................................................. 133
T
Tachometer ........................................ 195
Tail lamps
Display message ............................ 225
see Lights
Tank content
Fuel gauge ....................................... 31
Technical data
Capacities ...................................... 347
Emergency spare wheel ................. 342
Information .................................... 344
Tires/wheels ................................. 335
Vehicle data ................................... 352
TELEAID
Call priority .................................... 263
16Index

systems, see "Children in the vehicle"
(
Ypage 57).
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 safety41
Safety
Z

The SmartKey centrally locks/unlocks:
Rthe doors
Rthe trunk lid
Rthe stowage compartment in the center
console
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 206).
When it is dark, the surround lighting also
comes on if it is activated in the on-board
computer (
Ypage 205).
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 85).
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.
XTo deactivate: press the&button on
the SmartKey twice in rapid succession.
The battery check lamp (
Ypage 75) of the
SmartKey flashes twice briefly and lights up
once, then KEYLESS-GO is deactivated.
XTo activate: press any button on the
SmartKey or insert the SmartKey into the
ignition lock.
KEYLESS-GO and all of its associated fea-
tures are available again.
SmartKey73
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 298).
or
XJump-start the vehicle (Ypage 299).
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 69).
78Doors
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 25).
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 97).
XMake sure that seat =is adjusted prop-
erly.
Manual seat adjustment (
Ypage 98)
Electrical seat adjustment (
Ypage 98)
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 100).
XMake sure that steering wheel :is adjus-
ted properly.
Adjusting the steering wheel man-
ually(
Ypage 101)
Adjusting the steering wheel electrically
(
Ypage 101)
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 42).
XCheck whether you have fastened seat
belt ;properly (
Ypage 44).
96Correct driver's seat position
Seats, steering wheel and mirrors

The interior lighting automatically switches
on if you:
Runlock the vehicle
Ropen a door
Rremove the SmartKey from the ignition lock
The interior light is activated for a short while
when the SmartKey is removed from the igni-
tion lock. You can activate this delayed
switch-off using the on-board computer
(
Ypage 206).
Manual interior lighting control
XTo switch the interior lighting on/off:
press the cbutton.
XTo switch the reading lamps on/off:
press the pbutton.
Crash-responsive emergency lighting
The interior lighting is activated automatically
if the vehicle is involved in an accident.
XTo switch off the crash-responsive
emergency lighting: press the hazard
warning lamp button.
or
XLock and then unlock the vehicle using the SmartKey.
Replacing bulbs
Important safety notes
Xenon bulbs
GDANGER
Xenon bulbs carry a high voltage. You can get an electric shock if you remove the cover of
the Xenon bulb and touch the electrical con-
tacts. There is a risk of fatal injury.
Never touch the parts or the electrical con-
tacts of the Xenon bulb. Always have work on
the Xenon bulbs carried out at a qualified spe-
cialist workshop.
If your vehicle is equipped with Xenon bulbs,
you can recognize this by the following: the
cone of light from the Xenon bulbs moves
from the top to the bottom and back again
when you start the engine. For this to be
observed, the lights must be switched on
before starting the engine.
Bulbs and lamps are an important aspect of
vehicle safety. You must therefore make sure
that these function correctly at all times.
Have the headlamp setting checked regularly.
Other bulbs
GWARNING
Bulbs, lamps and connectors can get very hot
when operating. If you change a bulb, you
could burn yourself on these components.
There is a risk of injury.
Allow these components to cool down before
changing a bulb.
Do not use a bulb that has been dropped or if
its glass tube has been scratched.
The bulb may explode if:
Ryou touch it
Rit is hot
Ryou drop it
Ryou scratch it
Only operate bulbs in enclosed lamps
designed for that purpose. Only install spare
bulbs of the same type and the specified volt- age.
Marks on the glass tube reduce the service
life of the bulbs. Do not touch the glass tube
with your bare hands. If necessary, clean the
glass tube when cold with alcohol or spirit and
rub it off with a lint-free cloth.
Protect bulbs from moisture during opera-
tion. Do not allow bulbs to come into contact
with liquids.
There are bulbs other than the Xenon bulbs
that you cannot replace. Replace only the
bulbs listed (
Ypage 115). Have the bulbs that
you cannot replace yourself changed at a
qualified specialist workshop.
114Replacing bulbs
Lights and windshield wipers

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.
The windshield washer
fluid from the spray
nozzles no longer hits
the center of the wind-
shield.The spray nozzles are misaligned.
XHave the spray nozzles adjusted at a qualified specialist work-
shop.
120Windshield wipers
Lights and windshield wipers