overheating MERCEDES-BENZ SLK ROADSTER 2008 Owners Manual

Driving sys
tems 10
9
X
Press the jork button to call up
the phone book.
X Press the jork button to select the
desired name. To scroll through the tele-
phone book faster, press and hold the
j ork button for longer than 1 sec-
ond.
X Press the sbutton to start dialling.
The DIALLING message appears in the
multi-function display.
The number dialled is stored in the redial
memory.
When there is a connection, the call dura-
tion appears in the multi-function display.
The name also appears, provided it is
stored in the phone book, otherwise the
dialled number is still displayed.
or
X If you do not wish to make a call, press the
t button.
Redialling The on-board computer stores the last phone
numbers which were dialled. X
Press the sbutton to call up the most
recently dialled number in the redial mem-
ory.
X Press the jork button to select the
desired name or number.
X Press the sbutton to start dialling. Driving system
s
Your vehicle's driving systems are described
on the following pages:
R Cruise control and Speedtronic, which you
can use to control the speed of the vehicl e
R Parktronic*, which assists you in parking
and manoeuvrin g
The ABS, BAS and ESP ®
driving safety sys-
tems are described in the "Driving safety sys-
tems" section (Y page 50). Cruise control
Cruise control maintains a constant road
speed for you. It brakes automatically in order
to avoid exceeding 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. Controls
* optional
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Driving sys
tems 11
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
tips 16
2
X
Vehicles with manual transmission: engage
neutral.
X Vehicles with automatic transmission*:
shift the selector lever to N.
X Try to bring the vehicle under control using
corrective steering. Driving tips
Rolling with the engine switched off
G
Risk of accident
Never switch the engine off while the vehi-
cle is in motion.
There is no power assistance for the steer-
ing and the service brake when the engine
is not running.
You will require considerably more effort to
steer and brake and you could therefore
lose control of the vehicle and cause an
accident. Brakin
g 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. G
Risk of accident
Make sure that other road users are not
endangered by your braking. Downhill gradients On long and steep downhill gradients, espe-
cially if the vehicle is laden, you must shift to
a lower gear in good time or, on vehicles with
automatic transmission*, select shift rang e
1 ,2 or 3.
i This also applies if you have activated
cruise control or Speedtronic.
This uses the braking effect of the engine and
you will not have to brake to such an exten t
to maintain the same speed. This relieves the
load on the brake system and prevents the
brakes from overheating and wearing too
quickly. If you need additional braking ,
depress the brake pedal repeatedly rather
than continuously.
Heavy and light loads 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. 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 Operation
* optional
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