2008 MERCEDES-BENZ SLK ROADSTER Owners Manual

Driving sys
tems 11
0 G
Risk of accident
Do not change down for additional engine
braking on a slippery road surface. Thi s
could cause the drive wheels to lose thei r
grip and the vehicle could skid.
Use cruise control only if road and traffic con-
ditions make it appropriate to maintain a
steady speed for a prolonged period. You can
store any road speed above 30 km/h. G
Risk of accident
Cruise control cannot take account of roa d
and traffic conditions.
Always pay attention to traffic condition s
even when cruise control is activated.
Cruise control is only an aid designed to
assist driving. You are responsible for the
vehicle's speed and for braking in good
time. G
Risk of accident
Do not use cruise control :
R in road and traffic conditions which do
not allow you to maintain a constant
speed (e.g. heavy traffic or windin g roads). You could otherwise cause an
accident.
R on slippery roads. Braking or accelerat-
ing could cause the drive wheels to lose
traction and the vehicle could then skid.
R when there is poor visibility, e.g. due to
fog, heavy rain or snow
Cruise control lever You can operate cruise control and variable
Speedtronic with the cruise control lever
.
The LIM indicator lamp on the cruise control
lever indicates which system you have selec-
ted:
R LIM indicator lamp off:
cruise control is selected
R LIM indicator lamp lit:
variable Speedtronic is selected 1
To store the current speed or a higher
speed
2 LIM indicator lamp
3 To resume the last speed stored
4 To store the current speed or a lower
speed
5 To switch between cruise control and var-
iable Speedtronic
6 To deactivate cruise control
Selecting cruise control X
Check whether LIM indicator lamp 2is off .
If it is off, cruise control is already selected.
If it is not, press the cruise control lever in
the direction of arrow 5.
LIM indicator lamp 2in the cruise control
lever goes out. Cruise control is selected. Controls
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Driving sys
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1 G
Risk of injury
Cruise control brakes automatically in
order to avoid exceeding the set speed. As
it does so, the brake pedal is depressed. Do
not place your foot under the brake pedal
as it could become trapped .
Storing and maintaining the current
speed You can store the current speed if you are
driving faster than 30 km/h.
X Accelerate the vehicle to the desired
speed.
X Briefly press the cruise control lever up
1 or down 4.
X Remove your foot from the accelerato r
pedal.
Cruise control is activated. The vehicle
automatically maintains the stored speed.
i Cruise control may be unable to maintai n
the stored speed on uphill gradients. Th e
stored speed is resumed when the gradient
evens out. Cruise control maintains the
stored speed on downhill gradients by
automatically applying the brakes.
Vehicles with manual transmission: When selecting another gear, press the
accelerator pedal slightly to increase the
smoothness of the gear change.
When you depress the clutch pedal and
change to another gear, the engine speed
can increase slightly as long as no gear is
selected.
R
Always drive at adequate but not exces-
sive engine speeds .
R Change gear in good time.
R If possible, do not change down several
gears at a time.
Resuming the last speed stored G
Risk of accident
Only select a stored speed if you know what
that speed is and whether it is suitable for
the current situation. Otherwise, sudden
acceleration or braking could endanger yo u
or others.
X Briefly pull the cruise control lever towards
you 3.
X Remove your foot from the accelerato r
pedal.
Cruise control is activated and adjusts the
vehicle's speed to the last speed stored. Setting a speed X
Press the cruise control lever up 1for a
higher speed or down 4for a lower speed.
X Keep the cruise control lever pressed until
the desired speed is reached .
X Release the cruise control lever.
The new speed is stored.
i Cruise control is not deactivated if you
depress the accelerator pedal. For exam-
ple, if you accelerate briefly to overtake ,
cruise control adjusts the vehicle's speed
to the last speed stored after you have fin-
ished overtaking.
i Deceleration of the vehicle by means of
the cruise control lever is assisted by auto-
matic application of the brakes .
Vehicles with automatic transmission*:
On long downhill gradients, the automatic
transmission shifts down as a further meas-
ure. Controls
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Driving sys
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2
Making fine adjustments in 1 km/h
increments X
Briefly press the cruise control lever up
1 for a higher speed or down 4for a
lower speed.
The last speed stored is increased or
reduced.
Deactivating cruise control There are several ways to deactivate cruise
control:
X
Briefly press the cruise control lever for-
wards 6.
or
X Brake .
or
X Briefly press the cruise control lever in the
direction of arrow 5.
Variable Speedtronic is selected. LIM indi-
cator lamp 2in the cruise control lever
lights up.
Cruise control is automatically deactivated if,
for example:
R you apply the handbrake
R you are driving at less than 30 km/h R
ESP ®
is intervening or you deactivat e
ESP ®
R you depress the clutch pedal for more than
seven seconds on vehicles with a manual
transmissio n
R you move the selector lever to Nin vehicles
with automatic transmission* while drivin g
i The last speed stored is cleared when you
switch off the engine. Speedtronic
Speedtronic brakes automatically so that you
do not exceed the set speed. On long and
steep downhill gradients, especially if the
vehicle is laden, you must shift to a lower gear
in good time or select shift range 1,2 or 3in
vehicles with automatic transmission*. In this
way you will make use of the braking effect of
the engine, which relieves the load on the
brake system and prevents the brakes fro m
overheating and wearing too quickly. If you
need additional braking, depress the brake
pedal repeatedly rather than continuously. G
Risk of accident
Never depress the brake pedal continu -
ously while the vehicle is in motion, e.g.
never cause the brakes to rub by applying
constant slight pedal pressure. This causes
the brake system to overheat, increases
the braking distance and can lead to the
brakes failing completely. G
Risk of accident
Do not change down for additional engine
braking on a slippery road surface. Thi s
could cause the drive wheels to lose thei r
grip and the vehicle could skid.
You can set a variable or permanent limit
speed:
R Variable for speed limits, e.g. in built-up
areas (Y page 113 )
R Permanent for long-term speed restric-
tions, e.g. for driving on winter tyres
( Y page 114 ) G
Risk of accident
Speedtronic is only an aid designed to
assist driving. You are responsible for the
vehicle's speed and for braking in goo d
time. Controls
* optional
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B
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Driving sys
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3
i
The speed indicated in the speedometer
may differ slightly from the limit speed
stored.
Variable Speedtronic You can operate cruise control and variable
Speedtronic with the cruise control lever.
The LIM indicator lamp on the cruise control
lever indicates which system you have selec-
ted:
R
LIM indicator lamp off:
cruise control is selected
R LIM indicator lamp lit:
variable Speedtronic is selected
You can use the cruise control lever to limit
the speed to any speed above 30 km/h whil e
the engine is running . 1
To store the current speed or a higher
speed
2 LIM indicator lamp
3 To resume the last stored speed or to
make fine adjustments in 1 km/h incre-
ments
4 To store the current speed or a lower
speed
5 To switch between cruise control and var-
iable Speedtronic
6 To deactivate variable Speedtronic
Selecting variable Speedtronic X
Check whether LIM indicator lamp 2is on.
If it is on, variable Speedtronic is already
selected. If it is not, press the cruise control lever in
the direction of arrow
5.
LIM indicator lamp 2in the cruise control
lever lights up. Variable Speedtronic is
selected. G
Risk of accident
If there is a change of drivers, advise the
new driver of the limit speed stored.
Only use Speedtronic if you will not have to
accelerate suddenly to a speed above that
stored as the limit speed. You could other-
wise cause an accident.
You can only exceed the limit speed store d
if you deactivate variable Speedtronic :
R using the cruise control leve r
R by depressing the accelerator pedal
beyond the pressure point (kickdown)
It is not possible to deactivate variable
Speedtronic by braking. G
Risk of injury
Variable Speedtronic brakes automaticall y
in order to avoid exceeding the set speed.
As it does so, the brake pedal is depressed.
Do not place your foot under the brak e
pedal as it could become trapped. Controls
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Driving sys
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4
Storing the current speed You can use the cruise control lever to limit
the speed to any speed above 30 km/hw
hile
the engine is running.
X Briefly press the cruise control lever up
1 or down 4.
The current speed is stored. You will see
the stored speed in the multi-function dis-
play.
Resuming the last speed stored X
Briefly pull the cruise control lever towards
you 3.
Adjustment in 10 km/h increment sX
Briefly press the cruise control lever up
1 for a higher speed or down 4for a
lower speed.
or
X Keep the cruise control lever pressed until
the desired speed is set. Press the cruise
control lever, up 1for a higher speed or
down 4for a lower speed. Making fine adjustments in 1 km/h
increments X
For a higher speed: briefly pull the cruise
control lever towards you 3.
or
X Keep the cruise control lever pulled
towards you 3until the desired speed is
set .
Deactivating variable Speedtronic There are several ways to deactivate variable
Speedtronic:
X
Briefly press the cruise control lever for-
wards 6.
or
X Briefly press the cruise control lever in the
direction of arrow 5.
LIM indicator lamp 2in the cruise control
lever goes out. Variable Speedtronic is
deactivated.
Cruise control is selected.
Variable Speedtronic is deactivated automat-
ically when you depress the accelerator pedal
beyond the pressure point (kickdown), but
only if your current speed does not differ by more than 20 km/h from the stored speed.
You will hear a warning tone if this is the case. G
Risk of accident
It is not possible to deactivate variabl e
Speedtronic by braking.
i The last speed stored is cleared when you
switch off the engine.
Permanent Speedtronic You can use the on-board computer to limit
the speed permanently to a value between
160 km/h (e.g. for driving with winter tyres)
and the maximum speed.
Shortly before the stored speed is reached, it
is shown in the multi-function display .
You cannot exceed the stored limit speed,
even if you depress the accelerator pedal
beyond the pressure point (kickdown).
Setting permanent Speedtronic
X Press the èor· button to select the
Settings menu(Y page 101).
X Press the jbutton to call up the selec-
tion of submenus. Controls
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Driving sys
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5
X
Press the æorç button to select the
Vehicl esubmenu.
X Press the jbutton to select Speed
limit (winter tyres) .X
Press the æorç button to select the
desired setting.
The following settings can be selected:
R Off
Permanent Speedtronic is deactivated.
R A limit speed between 240 km/hand
160 km/h by increments of 10 km/h
X To select a different display, press the
j ,è orÿ button . Parktronic*
G
Risk of acciden
t
Parktronic is only an aid and may not detect
all obstacles. It does not relieve you of the
responsibility to pay attention.
You are always responsible for safety and
must continue to pay attention to your
immediate surroundings when parking and
manoeuvring. You could otherwise endan-
ger yourself and others. G
Risk of injury
Make sure that no persons or animals ar e
in the manoeuvring range. Otherwise, they
could be injured.
Parktronic is an electronic parking aid. It indi-
cates visually and audibly the distance
between your vehicle and an object.
Parktronic is automatically activated when
you switch on the ignition and release the
handbrake.
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 front bumper
and four sensors in the rear bumper. 1
Sensors in the front bumpe r
Range of the sensors The sensors must be free of dirt, ice and
slush, otherwise they may not function cor-
rectly. Clean the sensors regularly, taking
care not to scratch or damage them
. Side vie
w Controls
* optional
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5

Driving sys
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6 Top view
Front sensors
Centre Approximately 100 cm
Corners Approximately 60 cm
Rear sensors
Centre Approximately 120 cm
Corners Approximately 80 cm
!
Pay particular attention to objects above
or below the sensors when parking, such
as flower pots or trailer towbars. Parktronic
does not detect such objects when they are in the immediate vicinity of the vehicle. You
could damage the vehicle or the objects.
Ultrasonic sources such as an automatic
car wash, a lorry's compressed-air brakes
or a pneumatic drill could cause Parktronic
to malfunction.
Minimum distance Centre Approximately 20 cm
Corners Approximately 15 cm
If there is an obstacle within this range, all
warning displays light up and a tone sounds.
If the distance falls below the minimum clear-
ance, it may no longer be shown.
Warning displays
The warning displays show the distance
between the sensors and the obstacle. The
warning display for the front area is located
on the dashboard above the centre air vents.
The warning display for the rear area is loca-
ted between the roll-over bars. Front area warning display
1
Left-hand side of the vehicle
2 Right-hand side of the vehicle
3 Indicator segments
The warning display for each side of the vehi -
cle is divided into five yellow and two red
segments. Parktronic is operational if yellow
indicator segments 3light up.
The gear lever or selector lever position *
determines which warning display is active: Controls
* optional
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Driving sys
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7
Manual transmission: Gear lever in Warning display
Forwards gear
or
Neutral Front area activated
Reverse gear Rear and front areas
activated
Automatic transmission*:
Selector lever at Warning display
D Front area activate
d R
or N Rear and front area
s
activated P No areas activated
One or more segments light up as the vehicle
approaches an obstacle, depending on the
vehicle's distance from the obstacle.
R
Front area: from the sixth segmen t
onwards, you will hear an intermittent
warning tone; from the seventh segment
onwards, you will hear a continuous warn -ing tone for a maximum of two seconds
.
You have reached the minimum distance.
R Rear area: from the first segment onwards,
you will hear an intermittent warning tone.
The interval gets shorter after each seg -
ment. From the seventh segment you will
hear a continuous warning tone. You have
reached the minimum distance. The per-
manent warning tone immediately stops
when you disengage the reverse gear in
vehicles with manual transmission or set
the automatic transmission* to transmis-
sion range Dor P.
Deactivating/activating Parktronic 1
To deactivate/activate Parktronic
2 Indicator lamp If indicator lamp
2is on, Parktronic is deac-
tivated.
i Parktronic is automatically activated
when you turn the key to position 2in the
ignition lock . Cont
rols
* optional
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