2012 MERCEDES-BENZ SLK ROADSTER ESP

Otherwise, you may fail to recognise dangers
in time, cause an accident and injure yourself
and others.
The radar sensor system is automatically
deactivated near radio telescope facilities
(Y page 312).
If you want DISTRONIC PLUS to assist you,
the radar sensor system must be activated
(Y page 194) and operational.
If there is no vehicle in front, DISTRONIC
PLUS operates in the same way as cruise
control in the speed range between
30 km/h and 200 km/h. If avehicle is driving
in front of you, DISTRONIC operates in the
speed range between 0km/h and
200 km/h.
Do not use DISTRONIC PLUS on roads with
steep gradients. G
WARNING
DISTRONIC PLUS brakes yourv ehicle up to a
maximum of 4 m/s 2
depending on its speed.
This corresponds to approximately 40% of
your vehicle's maximum braking power. You
must also apply the brakes yourself if this
braking power is not sufficient.
If DISTRONIC PLUS detects a risk of collision
with avehicle in front, an intermittent warning
tone sounds. In addition, the ·distance
warning lamp in the instrument cluster lights
up. Brake to avoid a collision.
Cruise control lever With the cruise control lever, you can operate
DISTRONIC PLUS and variable SPEED-
TRONIC.
The LIM indicator lamp on the cruise control
lever indicates which system you have selec-
ted:
R LIM indicator lamp off: DISTRONIC PLUS
is selected.
R LIM indicator lamp on: variable SPEED-
TRONIC is selected. :
To store the curren tspeed or a higher
speed
; To set the specified minimum distance
= LIM indicator lamp
? To store the curren tspeed or call up the
last stored speed
A To store the curren tspeed or a lower
speed
B To switch between DISTRONIC PLUS and
variable SPEEDTRONIC
C To deactivate DISTRONIC PLUS
Selecting DISTRONIC PLUS X
Check whether LIM indicator lamp =is off.
If it is off, DISTRONIC PLUS is already selec-
ted.
If it is not, press the cruise control lever in
the direction of arrow B.
LIM indicator lamp =in the cruise control
lever goes out. DISTRONIC PLUS is selec-
ted.
Activating DISTRONIC PLUS, storing
and maintaining the current speed Important safety notes
G
WARNING
The vehicle can be braked when DISTRONIC
PLUS is activated. For this reason, deactivate
DISTRONIC PLUS if the vehicle is to be set in
motion by other means (e.g. in a car wash or
by towing). Driving systems
157Driving and parking Z

To activate DISTRONIC PLUS, the following
conditions must be fulfilled:
R
for vehicles not equipped with a navigation
system, the Becker ®
MAP PILOT must be
connected. See the separate Audio 20
operating instructions.
R the engine must be running. It may take up
to two minutes of driving before DIS-
TRONIC PLUS is ready for use.
R the electric parking brake must be
released.
R ESP ®
must be switched on, but not inter-
vening.
R the transmission must be in position D.
R the bonnet must be closed.
R the driver's door must be closed when you
shift from Pto Dor your seat belt must be
fastened.
R the frontp assenger door must be closed.
R the vehicle must no tbe skidding.
Activating while driving
When driving at speeds below 30 km/h, you
can only activate DISTRONIC PLUS if the vehi-
cle in fron thas been detected and is shown
in the multifunction display. If the vehicle in
fron tis no longer detected and displayed,
DISTRONIC PLUS switches off and you will
hear a tone.
X Briefly pull the cruise control lever towards
you ?or press it up :or down A.
DISTRONIC PLUS is selected.
X Keep the cruise control lever pressed
up : or down Auntil the desired speed
is set.
X Remove your foot from the accelerator
pedal.
Your vehicle adapts its speed to that of the
vehicle in front, but only up to the desired
stored speed.
i If you do not fully release the accelerator
pedal, the DISTRONIC PLUS inactive message appears in the multifunction dis-
play.T
he set distance to a slower-moving vehicle in front will then not be maintained.
You will be driving at the speed you deter-
mine by the position of the accelerator
pedal.
Activating when driving towards asta-
tionary vehicle
If the vehicle in front of you is stationary, you
can only activate DISTRONIC PLU Sonce your
vehicle is stationary as well.
X Briefly pull the cruise control lever towards
you ?or press it up :or down A.
DISTRONIC PLU Sis selected.
i DISTRONIC PLUS can only be activated at
under 30 km/h if a vehicle in front has been
detected. Therefore, the DISTRONIC PLUS
distance display in the instrument cluster
should be activated (Y page 189).
X Keep the cruise control lever pressed
up : or down Auntil the desired speed
is set.
i You can use the cruise control lever to set
the stored speed and the control on the
cruise control lever to set the specified
minimum distance (Y page 161).
Pulling away
X If the vehicle in front pulls away: remove
your foot from the brake pedal.
X Briefly pull the cruise control lever towards
you ?.
or
X Accelerate briefly.
Your vehicle pulls away and adapts its
speed to that of the vehicle in front.
Driving
If there is no vehicle in front, DISTRONIC
PLUS operates in the same way as cruise
control.
If DISTRONIC PLUS detects that the vehicle
in front has slowed down, it brakes your vehi-
cle. In this way, the distance you have selec-
ted is maintained. 158
Driving systemsDriving and parking

If DISTRONIC PLUS detects that the vehicle
in front is driving faster, it accelerates your
vehicle, but only up to the speed you have
stored. G
WARNING
If you depress the brake, DISTRONIC PLUS is
deactivated unless yourv ehicle is stationary.
DISTRONIC PLUS then no longer brakes your
vehicle. In such cases, control the distance
from vehicles travelling in fron twith the brake
alone. You could otherwise cause an accident
and thereby injure yourself and others. The
drive rremains fully responsible for the vehi-
cle's distance from other vehicles, the speed
being driven and for braking in good time.
Changing lanes
If you change to the overtaking lane, DIS-
TRONIC PLUS supports you if:
R you are driving faster than 60 km/h.
R DISTRONIC PLUS is maintaining the dis-
tance to a vehicle in front.
R you switch on the respective turn signals.
R DISTRONIC PLUS does not detec tadanger
of collision.
If these conditions are met, your vehicle is
accelerated. Acceleration will be interrupted
if changing lanes takes too long or if the dis-
tance between your vehicle and the vehicle in
fron tbecomes too small.
i When changing lanes, DISTRONIC PLUS
monitors the left lane on left-hand drive
vehicles and the right lane on right-hand
drive vehicles. G
WARNING
DISTRONIC PLUS is only an aid designed to
assist driving.
It is not a substitute for attentive driving. The
driver remains fully responsible for the vehi-
cle's distance from other vehicles, the vehi-
cle's speed and for braking in good time.
Always pay attention to traffic conditions and
your surroundings. Otherwise, you may fail to recognise dangers in time, cause an accident
and injure yourself and others.
Vehicles with COMAND Online
i The following function is not operational
in all countries.
DISTRONIC PLUS uses additional information
from your navigation system so that it can
adapt to certain traffic situations. This is the
case if, while following a vehicle, DISTRONIC
PLUS is active and you:
R approach or drive around a roundabout
R approach a T junction
R turn off at a motorway exit
Even if the vehicle in front leaves the detec-
tion range, DISTRONIC PLUS temporarily
maintains the curren tdriving speed and does
not accelerate. This is based on the current
map data in the navigation system. Example
:roundabout
The current speed is maintained:
R approximately 10 seconds before the
roundabout/T junction and approximately
1.5 seconds when driving on a roundabout
R approximately 12 seconds before reaching
a motorway exit and approximately
4s econds after the motorway exit
Afterwards, the vehicle accelerates back to
the set speed you specified.
Stopping G
WARNING
Never get out of the vehicle when DISTRONIC
PLUS is activated. Driving systems
159Driving and parking
Z

Deactivating DISTRONIC PLUS
There are several ways to deactivate DIS-
TRONIC PLUS:
X Briefly press the cruise control lever for-
wards :.
or
X Brake, unless the vehicle is stationary.
or
X Briefly press the cruise control lever in the
direction of arrow =.
Variable SPEEDTRONIC is selected. LIM
indicator lamp ;in the cruise contro llever
lights up.
When you deactivate DISTRONIC PLUS, the
DISTRONIC PLUS off message is shown in
the multifunction display for approximately
five seconds.
i The last speed stored remains stored until
you switch off the engine.
DISTRONIC PLUS is automatically deactiva-
ted if:
R you engage the electric parking brake or if
the vehicle is automatically secured with
the electric parking brake.
R you are driving slower than 25 km/h and
there is no vehicle in front, or if the vehicle
in front is no longer detected.
R ESP ®
intervenes or if you deactivate ESP ®
.
R the transmission is in the P,Ror Nposition.
R the vehicle is near a radio telescope facility
(Y page 312). R
you switch off the radar sensor system
(Y page 194).
R you pull the cruise control lever towards
you in order to pull away and the front-
passenger door is open.
R the vehicle has skidded.
If DISTRONIC PLUS is deactivated, you will
hear a warning tone. The DISTRONIC PLUS off message is shown in the multifunction
display for approximately five seconds.
Tips for driving with DISTRONIC PLUS General notes
The following contains descriptions of certain
road and traffic conditions in which you must
be particularly attentive. In such situations,
brake if necessary. DISTRONIC PLUS is then
deactivated.
Cornering, going into and coming out of a
bend
The ability of DISTRONIC PLUS to detec
tvehi-
cles when cornering is limited. Your vehicle
may brake unexpectedly or late. Driving systems
163Driving and parking Z

stored even if you remove the key from the
ignition lock.
Sports tuning
The firmer setting of the suspension tuning in
sports mode ensures even better contact
with the road. Select this mode if you want to
experience direct contact with the road sur-
face, when employing a sporty driving style,
e.g. on winding country roads.
X If indicator lamp : is not lit:
press but-
ton ;.
Indicator lamp :lights up. You have selec-
ted the suspension for a sporty driving
style.
Comfort tuning Select comfort mode if you prefer a more
comfortable style of driving.
X
If indicator lamp : is lit:
press but-
ton ;.
Indicator lamp :goes out. You have selec-
ted the suspension for a comfortable driv-
ing style. HOLD function
General notes The HOLD function can assist the driver in the
following situations:
R
when pulling away, especially on steep
slopes
R when manoeuvring on steep slopes
R when waiting in traffic
The vehicle is kept stationary without the
driver having to depress the brake pedal.
The braking effect is cancelled and the HOLD
function is deactivated when you depress the
accelerator pedal to pull away.
Activation conditions You can activate the HOLD function if:
R
the vehicle is stationary.
R the engine is running or if it has been auto-
matically switched off by the ECO start/
stop function.
R the driver's door is closed or if your seat
belt is fastened.
R the electric parking brake is released.
R the bonnet is closed.
R the selector lever is in position D,Ror Non
vehicles with automatic transmission.
R DISTRONIC PLUS is deactivated.
Activating the HOLD function X
Make sure that the activation conditions
are met.
X Depress the brake pedal.
X Quickly depress the brake pedal further
until ë appears in the multifunction dis-
play.
The HOLD function is activated. You can
release the brake pedal.
i If depressing the brake pedal the first
time does not activate the HOLD function,
wait briefly and then try again. Driving systems
165Driving and parking Z

The vehicle is not locked until the HOLD func-
tion is deactivated.
i If the engine has been switched off, it
cannot be started again until the HOLD
function has been deactivated. PARKTRONIC
Important safety notes G
WARNING
PARKTRONIC is only an aid and may not
detect all obstacles. It is not a substitute for
attentive driving.
You are always responsible for safety and
must continue to pay attention to your imme-
diate surroundings when parking and
manoeuvring. You could otherwise endanger
yourself and others. G
WARNING
Make sure that no persons or animals are in
the manoeuvring range. Otherwise, they
could be injured.
PARKTRONIC is an electronic parking aid with
ultrasonic sensors. It indicates visually and
audibly the distance between your vehicle
and an object.
PARKTRONIC is activated automatically if
you:
R switch on the ignition
R shift to position D,Ror Non vehicles with
automatic transmission
R release the electric parking brake
PARKTRONIC is deactivated at speeds above
18 km/h. It is reactivated at lower speeds.
PARKTRONIC monitors the area around your
vehicle using six sensors in the frontb umper
and four sensors in the rear bumper. :
Example: sensors in the front bumper,
left-hand side
Range of the sensors General notes
The sensors must be free of dirt, ice and
slush
.Otherwise, they may not functio ncor-
rectly. Clean the sensors regularly, taking
care not to scratch or damage them
(Y page 257). Side view
Top view Driving systems
167Driving and parking Z

Problems with PARKTRONIC
Problem Possible causes/consequences and
M Solutions
Only the red segments
in the PARKTRONIC
warning displays are lit.
You also hear a warning
tone for approximately
two seconds.
PARKTRONIC is deacti-
vated after approx-
imately 20 seconds,
and the indicator lamp
in the PARKTRONIC
button lights up. PARKTRONIC has malfunctioned and has switched off.
X
If problems persist, have PARKTRONIC checked at a qualified
specialist workshop. Only the red segments
in the PARKTRONIC
warning displays are lit.
PARKTRONIC is deacti-
vated after approx-
imately 20 seconds. The PARKTRONIC sensors are dirty or there is interference.
X
Cleant he PARKTRONIC sensors (Y page 257).
X Switch the ignition back on. The problem may be caused by an external source of radio or
ultrasound waves.
X
See if PARKTRONIC functions in a different location. Parking Guidance
Important safety notes Parking Guidance is an electronic parking aid
with ultrasound. Ultrasound is used to meas-
ure the road on both sides of the vehicle. A
suitable parking space is indicated by the
parking symbol. You receive steering instruc-
tions when parking. You may also use PARK-
TRONIC (Y
page 167). G
WARNING
Parking Guidance is merely an aid and may
recommend parking spaces that are not suit-
able for parking. For example, these might be
spaces where parking is prohibited, drive-
ways, unsuitable surfaces, etc.
Parking Guidance measures the parking
space as you drive past it. Any later changes
to the parking space are not taken into
account. For instance, this may be the case when the vehicle parked in front of or behind
the space changes its position or when an
obstacle is moved into the parking space.
Parking Guidance does not relieve you of the
responsibility for paying attention. If you rely
solely on Parking Guidance, you could cause
an accident and injure yourself and others.
You are always responsible for safety and
must continue to pay attention to your imme-
diate surroundings when parking and
manoeuvring. G
WARNING
Objects located above the height range of
Parking Guidance will not be detected when
the parking space is measured. These are not
taken into account when the parking proce-
dure is calculated, e.g. overhanging loads, tail
sections or loading ramps of goods vehicles.
In some circumstances, Parking Guidance 170
Driving systemsDriving and parking

Parking Guidance will only detect parking
spaces:
R
that are parallel to the direction of travel
R that are at least 1.5 m wide
R that are at least 1.3 m longer than your
vehicle
Ap arking space is displayed while you are
driving past it, and until you are approx-
imately 15 m away from it.
Parking G
WARNING
PARKTRONIC and Parking Guidance are
merely parking aids and may no tdetec tall
obstacles. They do not relieve you of the
responsibility of paying attention.
You are always responsible for safety and
must continue to pay attention to your imme-
diate surroundings when parking and
manoeuvring. You could otherwise endanger
yourself and others.
X Stop the vehicle when the parking space
symbol shows the desired parking space in
the instrument cluster.
X Vehicles with manual transmission :shift to
reverse gear.
Vehicles with automatic transmission: shift
into position R.
The following message appears in the mul-
tifunction display: Check vehicle sur‐ roundings Confirm with OK .
X Press the abutton on the multifunction
steering wheel to confirm.
The multifunction display switches to Park-
ing Guidance.
Depending on your distance from the park-
ing space, the Please reverse message
appears in the multifunction display. X
If necessary, reverse towards the parking
space. This is indicated by an arrow point-
ing backwards.
Continue reversing until you hear a tone.
Stop –the parking position has been
reached. The arrow is white.
The Please steer to the left or
Please steer to the right message
appears in the multifunction display. X
While the vehicle is stationary, turn the
steering wheel in the specified direction
until the arrow is white and a warning tone
sounds.
X To reverse into the parking space: main-
tain the steering wheel angle and reverse
carefully.
X Stop as soon as you hear a warning tone,
The vehicle has reached the position in
which you need to countersteer.
The Please steer to the left or
Please steer to the right message
appears in the multifunction display.
X Countersteering: while the vehicle is sta-
tionary, turn the steering wheel in the 172
Driving systemsDriving and parking