2008 MERCEDES-BENZ CLS COUPE warning light

Driving systems
135
X
Briefly press the cruise control lever in the
direction of arrow 5.
Variable Speedtronic is selected. LIM indi-
cator lamp 2 in the cruise control lever
lights up.
Cruise control is automatically deactivated if,
for example:
R you depress the parking brake
R you are driving at less than
30 km/h
R ESP ®
(Y page 59) is intervening or you
deactivate ESP ®
R you move the selector lever to N while driv-
ing
If cruise control is deactivated, you will hear
a warning tone. You will see the Cruise con-
trol off message in the multi-function dis-
play for approximately five seconds.
i The last speed stored is cleared when you
switch off the engine. Distronic*
Distronic regulates the speed and automati-
cally maintains the distance to the vehicle in
front.

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 select shift range 1, 2 or 3 in
good time. 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 from overheating and
wearing too quickly. G
Risk of accident
Do not change down for additional engine
braking on a slippery road surface. This
could cause the drive wheels to lose their
grip and the vehicle could skid. G
Risk of accident
Distronic is only an aid designed to assist
driving.
The driver remains fully responsible
for the vehicle's distance from other vehi-
cles, the vehicle's speed and braking in
good time. Distronic does not react to: R
pedestrians
R stationary

obstacles on the road, e.g. sta-
tionary or parked vehicles
R oncoming and crossing traffic
Distronic may not detect narrow vehicles
driving in front, e.g. motorcycles, or vehi-
cles driving on a different line. Therefore,
always pay attention to traffic conditions
even when Distronic is activated. Other-
wise, you may fail to recognise dangers in
time, could cause an accident and injure
yourself and others.
If a slower-moving vehicle is detected in front,
Distronic causes your vehicle to brake and
maintain a preset distance to the vehicle in
front. G
Risk of accident
Distronic cannot take account of road and
traffic conditions. Deactivate, or do not
activate, Distronic in situations in which
Distronic maintains the speed or acceler-
ates

to the set speed because it has lost the
vehicle in front, in particular:
R before corners
R on filter lanes Controls
* optional
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Driving systems
138
X
Briefly pull the cruise control lever towards
you 3.
X Remove your foot from the accelerator
pedal.
Distronic is activated and adjusts the vehi-
cle's speed to the last speed stored.
Setting the specified minimum distance
for Distronic You can set the specified minimum distance
for Distronic by varying the time span
between 1.0 and 2.0 seconds. This time span
determines the distance that Distronic should
maintain from the vehicle in front, depending
on the road speed. You can read this distance
in the multi-function display.
1
To activate/deactivate the distance warn-
ing function 2
Indicator lamp
3 To adjust the set distance
To adjust the set distance
X To increase: turn thumbwheel 3 towards
¯.
Distronic then maintains a greater distance
between your vehicle and the vehicle in
front.
X To decrease: turn thumbwheel 3 towards
®.
Distronic then maintains a shorter distance
between your vehicle and the vehicle in
front.
i Make sure that you maintain the mini-
mum distance required by law to the vehi-
cle in front. Adjust the distance to the
vehicle in front if necessary.
Distance warning function This function warns you when the distance to
the vehicle in front is too small, even when
Distronic is deactivated:
R
The distance warning lamp l in the
instrument cluster lights up.
R An intermittent warning tone may sound. You must apply the brakes yourself in order
to maintain the correct distance to the vehicle
and to avoid a collision. G
Risk of accident
Pay careful attention to the traffic situation
if:
R the l distance warning lamp in the
instrument cluster lights up
R and/or an intermittent signal sounds
Brake or swerve to avoid the obstacle if
necessary.
i Distronic does not always clearly recog-
nise complex road and traffic conditions.
You may then receive a false distance warn-
ing tone or none at all.
X To activate/deactivate: press button 1.
When the function is activated, indicator
lamp 2 in the button lights up and a loud-
speaker symbol appears in the display.
When the function is deactivated, indicator
lamp 2 in the button goes out and the
loudspeaker symbol disappears from the
multi-function display. Controls
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Driving systems
139
Distronic displays in the speedometer
1
Stored speed
When Distronic is activated, one or two seg-
ments in the set speed range light up.
i For design reasons, the speed displayed
in the speedometer may differ slightly from
the speed set for Distronic. 1
Segments
If Distronic detects a vehicle in front, the seg-
ments between the speed of the vehicle in
front and the stored speed light up. The
l distance warning lamp in the instru-
ment cluster lights up if the distance to the
vehicle in front is too small. G
Risk of accident
If Distronic detects a risk of collision with
the vehicle in front:
R the l distance warning lamp in the
instrument cluster lights up
R an intermittent warning signal sounds
Brake to avoid crashing.
The intermittent warning tone ceases and the
l distance warning lamp goes out once you have re-established the required distance
to the vehicle in front.
i
Distronic brakes your vehicle at a maxi-
mum of 2 m/s 2
. This corresponds to
approximately 20% of your vehicle's maxi-
mum braking power.
Distronic menu in the on-board com-
puter You can read the current Distronic settings in
the Distronic menu. What the multi-function
display shows depends on whether Distronic
and the distance warning function are activa-
ted or deactivated.
X
Press the è orÿ button repeatedly
until one of the following two displays
appears in the multi-function display.
Distronic deactivated
When Distronic is deactivated you will see the
standard Distronic display in the multi-func-
tion display. Controls
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Driving systems
1401
Vehicle in front, if detected
2 Actual distance to the vehicle in front
3 Specified minimum distance to the vehi-
cle in front
4 Own vehicle
5 Symbol for activated distance warning
function
Distronic activated
When Distronic is activated, the stored speed
appears in the multi-function display for
approximately five seconds. With Distronic
activated, you will see the following in the
multi-function display:
1 Display for activated Distronic Deactivating Distronic
1
To deactivate Distronic
2 LIM indicator lamp
3 To switch between Distronic and variable
Speedtronic
There are several ways to deactivate Dis-
tronic:
X Briefly press the cruise control lever for-
wards 1.
or
X Brake.
or X
Briefly press the cruise control lever in the
direction of arrow 3.
Variable Speedtronic is selected. LIM indi-
cator lamp 2 in the cruise control lever
lights up.
i You will see the Distronic off message
in the multi-function display for approxi-
mately five seconds.
The last speed stored is cleared when you
switch off the engine.
i Distronic is not deactivated if you depress
the accelerator pedal. If you accelerate
briefly to overtake, Distronic adjusts the
vehicle's speed to the last speed stored
after you have finished overtaking.
Distronic is automatically deactivated if:
R you depress the parking brake
R you are driving at less than 30 km/h
R ESP ®
is intervening or you deactivate
ESP ®
R you move the selector lever to N while driv-
ing
If Distronic is deactivated, you will hear a
warning tone. You will see the Distronic
Controls
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Driving systems
146
display. Immediately depress the brake firmly
until the warning message disappears from
the multi-function display or move the selec-
tor lever to
P. This deactivates HOLD. AIRMATIC DC*
Vehicle level Your vehicle automatically adjusts its ride
height to reduce petrol consumption and
improve driving safety.
The following vehicle levels are possible:
R
Normal
R Raised
R Lowered
The "Normal" and "Raised" vehicle levels can
be set manually.
The "Lowered" vehicle level is set automati-
cally:
R at speeds above 140 km/h
R if you have selected "Sports tuning I or
II" ( Y page 147)
R if you have selected "Comfort tun-
ing" (Y page 147) and then lock the vehicle within 60 seconds of the engine being
switched off G
Risk of injury
If you have selected “Comfort tuning”, the
vehicle will be lowered if you lock it within
60 seconds of the engine being switched
off. Make sure, therefore, that nobody is in
the vicinity of the wheel housing or under
the vehicle when you lock the vehicle. Oth-
erwise, limbs could become trapped.
! If you have selected “Comfort tuning”,
the vehicle will be lowered if you lock it
within 60 seconds of the engine being
switched off. Make sure when parking that
you stop your vehicle so that it does not
make contact with the kerb as it descends.
Your vehicle could otherwise be damaged.
Setting the vehicle level manually
Select the "Normal" setting for normal road
surfaces and "Raised" for driving with snow
chains or on particularly poor road surfaces. G
Risk of injury
Make sure that nobody is in the vicinity of
the wheel housing or under the vehicle
while lowering the vehicle when it is sta- tionary. Otherwise, limbs could become
trapped.
1
To set the vehicle level
2 Indicator lamp
Setting the raised level
X Start the engine.
If indicator lamp 2 is not lit:
X Press button 1.
Indicator lamp 2 lights up. The vehicle is
adjusted to the raised level.
The Vehicle rising message appears in
the multi-function display Controls
* optional
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Driving systems
149
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 in the
roof trim at the rear.
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
3 light up.
The selector lever position determines which
warning display is active: Selector lever at Warning display
D Front area activated
R or N Rear and front areas
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.
From the:
R
sixth segment onwards, you will hear an
intermittent warning tone for approxi-
mately two seconds.
R seventh segment onwards, you will hear a
warning tone for approximately two sec-
onds. You have reached the minimum dis-
tance. Controls
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Display messages
233Display messages Possible cause/consequence Possible solution
B Top up coolant See
Owner's Manual The coolant level is too low. X
Top up the coolant, observing the warning
notes before doing so (Y page 196).
X Have the coolant system checked at a qualified
specialist workshop if the coolant needs top-
ping up more often than usual. . Dipped beam, left
or
Dipped beam, right The right-hand or left-hand dipped-beam
headlamp is faulty. X
Halogen headlamp: replace the bulb
(Y page 271).
X Bi-xenon headlamp*: visit a qualified special-
ist workshop. . AUTO lights inop-
erative The light sensor is faulty. Constant head-
lamp mode is switched on. X
Switch the lights to manual control in the on-
board computer ( Y page 125).
X Switch the lights on and off using the light
switch. . Rear left turn sig-
nal

Back-up bulb on
or
Rear right turn
signal Back-up
bulb on The rear left-hand or rear right-hand turn
signal is faulty.
This
display message will only appear if all
LEDs have failed. X
Visit a qualified specialist workshop. Practical advice
* optional
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Display messages
238 Display messages Possible cause/consequence Possible solution
H Tyre pressure
Check tyres The pressure in one or more tyres has
dropped significantly. The affected wheel
is highlighted in the tyre pressure display
of the tyre pressure monitor*. X
Stop the vehicle without making any sudden
steering
or braking manoeuvres. Pay attention
to the traffic conditions as you do so.
X Check the tyres.
X Repair or change the faulty tyre if necessary
(Y page 276).
X Check the tyre pressure and correct it if nec-
essary ( Y page 200).
The warning will disappear automatically after
you have been driving for a few minutes with
the corrected tyre pressure. I Change key batter-
ies
The batteries of the KEYLESS GO key* are
discharged. X
Change the batteries ( Y page 269).I Key not detected
The KEYLESS GO key* is not in the vehicle.
It will no longer be possible to centrally
lock

the vehicle and start the engine if the
engine is switched off. X
Stop the vehicle. Pay attention to the traffic
conditions as you do so.
X Look for the KEYLESS GO key*. I Key not detected
The KEYLESS GO * key is not detected
while

the engine is running, because there
is interference from a strong source of
radio waves. X
Stop the vehicle. Pay attention to the traffic
conditions as you do so.
X Operate the vehicle using the key in the ignition
lock if necessary. Practical advice
* optional
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