2015 MERCEDES-BENZ SLK-CLASS ROADSTER instrument cluster

Always pay careful attention to the traffic sit-uation and be ready to brake.
In the event of snowfall or heavy rain, the rec-
ognition can be impaired.
Recognition by the radar sensor system is
also impaired in the event of:
R there is dirt on the sensors or anything else
covering the sensors
R there is interference by other radar sources
R there are strong radar reflections, for
example in parking garages
R a narrow vehicle traveling in front, e.g. a
motorbike
R a vehicle traveling in front on a different line
relative to the center of your vehicle
Following damage to the front end of the vehi-
cle, have the configuration and operation of
the radar sensors checked at a qualified spe-
cialist workshop. This also applies to colli-
sions at low speeds where there is no visible
damage to the front of the vehicle.
Function
X To activate/deactivate: activate or deac-
tivate PRE-SAFE ®
Brake in the on-board
computer ( Ypage 203).
When PRE-SAFE ®
Brake is deactivated, the
assistance graphic shows the æsymbol
in the multifunction display.
Starting at a speed of around 4 mph (7 km/h),
this function warns you if you rapidly
approach a vehicle in front. An intermittent
warning tone will then sound and the ·
distance warning lamp will light up in the
instrument cluster.
X Brake immediately to defuse the situation.
or
X Take evasive action provided it is safe to do
so.
PRE-SAFE ®
Brake can also brake the vehicle
automatically under the following conditions:
R the driver and front-passenger have their
seat belts fastened and
R the vehicle speed is between approx-
imately 4 mph (7 km/h) and 124 mph
(200 km/h)
At speeds of up to approximately 40 mph
(70 km/h) PRE-SAFE ®
Brake can also detect
stationary objects. Examples of stationary
objects are stopped or parked vehicles.
iIf there is an increased risk of collision,
preventive passenger protection measures
(PRE-SAFE ®
) are activated.
If the risk of collision with the vehicle in front
remains and you do not brake, take evasive
action or accelerate significantly, the vehicle
may perform automatic emergency braking,
up to the point of full brake application. Auto-
matic emergency braking is not performed
until immediately prior to an imminent acci-
dent.
You can prevent the intervention of the PRE- SAFE ®
Brake at any time by:
R depressing the accelerator pedal further.
R activating kickdown.
R releasing the brake pedal.
The braking action of PRE-SAFE ®
Brake is
ended automatically if:
R you maneuver to avoid the obstacle.
R there is no longer any danger of a collision.
R there is no longer an obstacle detected in
front of your vehicle.
Protection against theft
Immobilizer
XTo activate with the SmartKey: remove
the SmartKey from the ignition lock.
X To activate with KEYLESS-GO: switch the
ignition off and open the driver's door.
X To deactivate: switch on the ignition.
The immobilizer prevents your vehicle from
being started without the correct SmartKey.
68Protection against theft
Safety

Useful information
iThis 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).
Exterior lighting
General notes
For reasons of safety, Mercedes-Benz recom-
mends that you drive with the lights switchedon even during the daytime. In some coun-
tries, operation of the headlamps varies due
to legal requirements and self-imposed obli-
gations.
Setting the exterior lighting
Setting options
Exterior lighting can be set using: R the light switch
R the combination switch ( Ypage 110)
R the on-board computer ( Ypage 205)
Light switch
Operation
1 WLeft-hand standing lamps
2XRight-hand standing lamps
3 TParking lamps, license plate and
instrument cluster lighting
4ÃAutomatic headlamp mode, control-
led by the light sensor
5 LLow-beam/high-beam headlamps
BRRear fog lamp
CNFog lamp (only vehicles with front
fog lamps)
If you hear a warning tone when you leave the
vehicle, the lights may still be switched on. X Turn the light switch to Ã.
The exterior lighting (except the parking/
standing lamps) switches off automatically ifyou:
R remove the SmartKey from the ignition lock
R open the driver's door with the SmartKey in
position 0.
Automatic headlamp mode
GWARNING
When the light switch is set to Ã, the low-
beam headlamps may not be switched on
automatically if there is fog, snow or other
causes of poor visibility due to the weather
conditions such as spray. There is a risk of an
accident.
In such situations, turn the light switch to L .
108Exterior lighting
Lights and windshield wipers

XPress the Nbutton.
The green Nindicator lamp in the instru-
ment cluster lights up.
X To switch off the front fog lamps: press
the N button.
The green Nindicator lamp in the instru-
ment cluster goes out.
Only vehicles with front fog lamps have the
fog lamps function.
Rear fog lamp
The rear fog lamp improves visibility of your
vehicle for the traffic behind in the event of
thick fog. Please take note of the country-
specific regulations for the use of rear foglamps. X To switch on the rear fog lamps: turn the
SmartKey in the ignition lock to position 2
or start the engine.
X Turn the light switch to Lorà .
X Press the Rbutton.
The yellow Rindicator lamp in the
instrument cluster lights up.
X To switch off the rear fog lamp: press the
R button.
The yellow Rindicator lamp in the
instrument cluster goes out.
Parking lamps
!If the battery has been excessively dis-
charged, the parking lamps or standing
lamps are automatically switched off to
enable the next engine start. Always park
your vehicle safely and sufficiently lit
according to legal standards. Avoid the
continuous use of the Tparking lamps
for several hours. If possible, switch on theX right or the Wleft standing lamp.
X To switch on: turn the light switch to T.
The green Tindicator lamp in the instru-
ment cluster lights up.
Standing lamps
Switching on the standing lamps ensures the corresponding side of the vehicle is illumina- ted. X
To switch on the standing lamps: the
SmartKey is not in the ignition lock or it is in position 0.
X Turn the light switch to W(left-hand side
of the vehicle) or X(right-hand side of
the vehicle).
Combination switch
Turn signal
:High-beam headlamps
;Turn signal, right
=High-beam flasher
?Turn signal, left
X To indicate briefly: press the combination
switch briefly to the pressure point in the
direction of arrow ;or? .
The corresponding turn signal flashes three
times.
X To indicate: press the combination switch
beyond the pressure point in the direction
of arrow ;or? .
High-beam headlamps
X
To switch on the high-beam headlamps:
turn the SmartKey in the ignition lock to position 2or start the engine.
X Turn the light switch to Lorà .
X Press the combination switch beyond the
pressure point in the direction of arrow :.
In the Ãposition, the high-beam head-
lamps are only switched on when it is dark
and the engine is running.
110Exterior lighting
Lights and windshield wipers

TheK indicator lamp in the instrument
cluster lights up when the high-beam head-
lamps are switched on.
X To switch off the high-beam head-
lamps: move the combination switch back
to its normal position. The K indicator lamp in the instrument
cluster goes out.
Vehicles with Adaptive Highbeam Assist:
when Adaptive Highbeam Assist is active, it
controls activation of the high-beam head-
lamps ( Ypage 112).
High-beam flasher
X
To switch on: turn the SmartKey in the
ignition lock to position 1or 2or start the
engine.
X Pull the combination switch in the direction
of arrow =.
Hazard warning lamps
X
To switch on the hazard warning lamps:
press button :.
All turn signals flash. If you now switch on a turn signal using the combination switch,
only the turn signal lamp on the corre-
sponding side of the vehicle will flash.
X To switch off the hazard warning lamps:
press button :. The hazard warning lamps automatically
switch on if:
R an air bag is deployed or
R the vehicle decelerates rapidly from a
speed of above 45 mph (70 km/h) and
comes to a standstill
The hazard warning lamps switch off auto-
matically if the vehicle reaches a speed of
above 6 mph (10 km/ h)again after a full
brake application.
iThe hazard warning lamps still operate if
the ignition is switched off.
Cornering light function
The cornering light function improves the illu-
mination of the road over a wide angle in the direction you are turning, enabling better vis-
ibility in tight bends, for example. The corner- ing light function can only be activated when
the low-beam headlamps are switched on.
Active: R if you are driving at speeds below 25 mph
(40 km/h) and switch on the turn signal or
turn the steering wheel
R if you are driving at speeds between
25 mph (40 km/h) and 45 mph (70 km/h)
and turn the steering wheel
The cornering lamp may remain lit for a short
time, but is automatically switched off after
no more than three minutes.
Exterior lighting111
Lights and windshield wipers
Z

Switching Adaptive Highbeam Assist on/off
XTo switch on: turn the light switch to Ã.
X Press the combination switch beyond the
pressure point in the direction of arrow :.
The _ indicator lamp in the multifunc-
tion display lights up when it is dark and the light sensor activates the low-beam head-lamps.
If you are driving at speeds above approx-
imately 16 mph (25 km/h):
The headlamp range is set automatically
depending on the distance between the
vehicle and other road users.
If you are driving at speeds above approx-
imately 19 mph (30 km/h) and no other
road users have been detected:
The high-beam headlamps are switched on
automatically. The Kindicator lamp in
the instrument cluster also lights up.
If you are driving at speeds below approx-
imately 16 mph (25 km/h) or other road
users have been detected or the roads are adequately lit:
The high-beam headlamps are switched off
automatically. The Kindicator lamp in
the instrument cluster goes out. The _
indicator lamp in the multifunction display
remains lit.
X To switch off: move the combination
switch back to its normal position or move
the light switch to another position.The _ indicator lamp in the multifunc-
tion display goes out.
Headlamps fogged up on the inside
Certain climatic and physical conditions may
cause moisture to form in the headlamp. This moisture does not affect the functionality of
the headlamp.
Interior lighting
Overview of interior lighting
Overhead control panel :
p Switches the left-hand reading lamp
on/off
;| Switches the automatic interior
lighting control on/off
=p Switches the right-hand reading
lamp on/off
?c Switches the interior lighting on/off
Interior lighting control
General notes
In order to prevent the vehicle's battery from discharging, the interior lighting functions are
automatically deactivated after some time
unless the SmartKey is in position 2in the
ignition lock.
The color and brightness of the ambient light-
ing may be set using the on-board computer ( Y page 205).
Automatic interior lighting control
X
To activate/deactivate: press the|
button.
When the automatic interior lighting con-
trol is activated, the button is flush with the overhead control panel.
Interior lighting113
Lights and windshield wipers
Z

Key for the vehicle. The ignition is not
switched on. The engine cannot be started.
KEYLESS-GO
General notes
Vehicles with KEYLESS-GO are equipped with
a SmartKey featuring an integrated KEYLESS- GO start function and a detachable Start/
Stop button.
The Start/Stop button must be inserted in the
ignition lock and the SmartKey must be in the
vehicle.
When you insert the Start/Stop button into
the ignition lock, the system needs approx-
imately two seconds recognition time. You
can then use the Start/Stop button.
Pressing the Start/Stop button several times
in succession corresponds to the different
key positions in the ignition lock. This is only
the case if you are not depressing the brake
pedal.
If you depress the brake pedal and press the
Start/Stop button, the engine starts immedi-
ately.
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,
when starting the engine.
To start the vehicle without actively using the
SmartKey:
R the Start/Stop button must be inserted in
the ignition lock.
R the SmartKey must be in the vehicle.
R the vehicle must not be locked with the
SmartKey or KEYLESS-GO ( Ypage 73).
Do not keep the SmartKey:
R with electronic devices, e.g. a mobile
phone or another SmartKey.
R with metallic objects, e.g. coins or metalfoil.
R inside metallic objects, e.g. a metal case.
This can impair the functionality of the KEY-
LESS-GO key.
iThe engine can be turned off while the
vehicle is in motion by pressing and holding the Start/Stop button for approximately
three seconds. This function operates inde-
pendently of the ECO start/stop automatic
engine switch-off function.
Key positions with KEYLESS-GO
:Start/Stop button
;Ignition lock
As soon as the ignition is switched on, all the
indicator lamps in the instrument cluster light up. Further information on situations where
an indicator lamp either fails to go out after
starting the engine or lights up while driving( Y page 246).
If Start/Stop button :has not yet been
pressed, this corresponds to the SmartKey
being removed from the ignition.
X To switch on the power supply: press
Start/Stop button :once.
The power supply is switched on. You can
now activate the windshield wipers, for
example.
iIf you then open the driver's door when in
this position, the power supply is deactiva-
ted.
X To switch on the ignition: press Start/
Stop button :twice.
The ignition is switched on.
iThe ignition is switched off when:
R the driver's door is opened and
R you press Start/Stop button :once
when in this position
140Driving
Driving and parking

Problems with the engine
ProblemPossible causes/consequences andMSolutions
The engine does not start.The HOLD function or DISTRONIC PLUS is activated.
X Deactivate the HOLD function ( Ypage 180) or DISTRONIC
PLUS ( Ypage 171).
X Try to start the engine again.
The engine does not
start. The starter motor
can be heard.R
There is a malfunction in the engine electronics.
R There is a malfunction in the fuel supply.
X Turn the SmartKey back to position 0in the ignition lock before
attempting to start the engine again.
or
X Press the Start/Stop button repeatedly until all indicator lamps
in the instrument cluster go out.
X Try to start the engine again ( Ypage 141). Avoid excessively
long and frequent attempts to start the engine as these will drain
the battery.
If the engine does not start after several attempts: X Consult a qualified specialist workshop.
The engine does not
start. You cannot hear
the starter motor.The on-board voltage is too low because the battery is too weak or
discharged.
X Jump-start the vehicle ( Ypage 303).
If the engine does not start despite attempts to jump-start it:
X Consult a qualified specialist workshop.
The starter motor was exposed to a thermal load that was too high.
X Allow the starter motor to cool down for approximately two minutes.
X Try to start the engine again.
If the engine still does not start:
X Consult a qualified specialist workshop.
The engine is not run-
ning smoothly and ismisfiring.There is a malfunction in the engine electronics or in a mechanical
component of the engine management system.
X Only depress the accelerator pedal slightly.
Otherwise, non-combusted fuel may get into the catalytic con-
verter and damage it.
X Have the cause rectified immediately at a qualified specialistworkshop.
Driving149
Driving and parking
Z

iThe ECO start/stop function is not avail-
able when reverse gear is engaged.
Further information on the ECO start/stop function ( Ypage 144).
Shift recommendation
X
Shift gear according to gearshift recom- mendation :when shown in the multi-
function display of the instrument cluster.
The gearshift recommendations assist you in adopting an economical driving style. The rec- ommended gear is shown in the multifunction
display.
Automatic transmission
Important safety notes
GWARNING
If the engine speed is above the idling speed
and you engage transmission position Dor R,
the vehicle could pull away suddenly. There is a risk of an accident.
When engaging transmission position Dor R,
always firmly depress the brake pedal and do not simultaneously accelerate.
GWARNING
The automatic transmission switches to neu-
tral position Nwhen 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 position P. Prevent the parked vehi-
cle from rolling away by applying the parkingbrake.
Selector lever
Overview of transmission positions
Selector lever j
Park position with selector lever lock
kReverse gear
iNeutral
hDrive
Transmission position and drive pro-
gram display
:Transmission position display
;Drive program display
The current position of the selector lever is
shown by the indicators next to the selectorlever.
The indicators light up when the SmartKey is inserted into the ignition lock. The indicators go out when the SmartKey is removed from
the ignition lock.
Automatic transmission151
Driving and parking
Z