2008 MERCEDES-BENZ CLS COUPE lights

Troubleshooting
245Problem Possible cause/consequence Suggested solutions
v
The yellow ESP ®
warning
lamp flashes while the
vehicle is in motion. G
Risk of accident
ESP ®
or traction control has
intervened because at least one
wheel has started to spin.
Cruise control or Distronic* is
deactivated. X
Only depress the accelerator pedal as far as necessary when pull-
ing away.
X Release the accelerator pedal while you are driving.
X Adapt your driving style to suit the road and weather conditions.
X Do not deactivate ESP ®
. Exceptions: (Y page 59).3
The red brake system
warning lamp comes on
while you are driving. You
will also hear a warning
tone. You are driving with the parking
brake applied. X
Release the parking brake.
The warning lamp goes out and the warning tone ceases. 3
The red brake system
warning lamp comes on
while the engine is run-
ning. You will also hear a
warning tone. G
Risk of accident
There is insufficient brake fluid in
the fluid reservoir. X
Do not continue driving under any circumstances.
X Consult a qualified specialist workshop immediately.
X Observe the additional messages in the multi-function display
(Y page 219).
X Under no circumstances should you top up the brake fluid. This will
not rectify the fault. l
The red distance warning
lamp* lights up while the
vehicle is in motion. G
Risk of accident
The distance to the vehicle in
front is too short for the speed
selected. X
Increase the distance. Practical advice
* optional
219_AKB; 2; 4, en-GB
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2007-11-13T09:28:36+01:00 - Seite 245 Z

Troubleshooting
246 Problem Possible cause/consequence Suggested solutions
l
The red distance warning
lamp* lights up while the
vehicle is in motion. You
will also hear a warning
tone. G
Risk of accident
You are approaching a vehicle in
front at too great a speed or Dis-
tronic*
has detected a stationary
obstacle in your line of travel. X
Be prepared to brake immediately.
X Pay careful attention to the traffic situation. You may have to brake
or take evasive action. D
The red coolant warning
lamp comes on while the
engine is running. There is insufficient coolant in the
expansion tank.
The coolant is too hot and the
engine is no longer being cooled
sufficiently. X
Stop the vehicle as soon as possible. Pay attention to the traffic
conditions as you do so.
X Allow the engine and coolant to cool.
X Check the coolant level. Observe the warning notes
(Y page 196). Top up the coolant if necessary.
X Have the coolant system checked at a qualified specialist work-
shop if the coolant needs topping up more often than usual. D
The red coolant warning
lamp comes on while the
engine is running. If the coolant level is correct, the
radiator fan may be faulty.
The coolant is too hot and the
engine is no longer being cooled
sufficiently. X
If the coolant temperature is less than 120†, you can continue
driving to the nearest qualified specialist workshop.
X In doing so, avoid heavy loads on the engine (e.g. driving in moun-
tainous terrain) and stop-and-go driving. Practical advice
* optional
219_AKB; 2; 4, en-GB
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2007-11-13T09:28:36+01:00 - Seite 246

Troubleshooting
249Problem Possible cause/consequence Suggested solutions
<
The red seat belt warning
lamp lights up for 6 sec-
onds after the engine
starts up 28
. The seat belt warning lamp
reminds the driver and front
passenger to fasten their seat
belts. X
Fasten your seat belt ( Y page 88).<
After the engine starts you
will
hear a warning tone for
up to 6 seconds 28
. G
Risk of injury
The driver's seat belt is not fas-
tened. X
Fasten your seat belt ( Y page 88).
The warning tone ceases. <
The red seat belt warning
lamp lights up after start-
ing the engine, as soon as
the driver's door or the
front-passenger door is
closed. G
Risk of injury
The driver or front passenger has
not fastened their seat belt. X
Fasten your seat belt ( Y page 88).
The warning lamp goes out. G
Risk of injury
There are objects on the front-
passenger seat. X
Remove the objects from the front-passenger seat and stow them
safely.
The warning lamp goes out. 28
Only for certain countries. Practical advice
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Troubleshooting
251Warning tones
Problem Possible cause/consequence Suggested solutions
The anti-theft alarm system* is
suddenly triggered. You have opened the vehicle
using
the emergency key element
without deactivating the anti-
theft alarm system* first. X
Switch off the alarm (Y page 61). You hear a warning tone. A message appears in the multi-
function display. X
See the explanations for the display message ( Y page 219).You hear a warning tone. You are driving with the parking
brake applied. X
Release the parking brake. You hear a warning tone. You have opened the driver's
door and forgotten to switch off
the lights. X
Turn the light switch to M or U.You hear a warning tone.
G
Risk of injury
The driver or front passenger has
not fastened their seat belt. X
Fasten your seat belt ( Y page 88).You hear a continuous tone. You have switched off the engine
and opened the bonnet or the
driver's

door with Hold activated. X
Deactivate HOLD (Y page 145). Practical advice
* optional
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Troubleshooting
258 Parktronic*
Problem Possible cause/consequence Suggested solutions
Only the red segments in the
Parktronic
warning display are lit.
You also hear a warning tone for
approximately two seconds.
Parktronic is deactivated after
approximately 20 seconds and
the indicator lamp in the Park-
tronic button lights up. Parktronic has malfunctioned
and has switched itself off. X
If problems persist, have Parktronic checked at a qualified spe-
cialist workshop. Only the red segments in the
Parktronic

warning display are lit.
Parktronic is deactivated after
approximately 20 seconds. The Parktronic sensors are dirty
or there is interference. X
Clean the Parktronic sensors ( Y page 214).
X Switch the ignition back on. Only the red segments in the
Parktronic

warning display are lit.
Parktronic is deactivated after
approximately 20 seconds. The problem may be caused by an
external source of radio or ultra-
sound waves. X
See if Parktronic functions in a different location. Practical advice
* optional
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Changing the batteries
270 Key or KEYLESS GO key*
Checking the batteries X
Press the j or k button.
The batteries are in order if the battery
charge indicator lamp lights up briefly.
Changing the batteries You require two CR 2025 3V cell batteries.
X
Remove the emergency key element from
the key (Y page 266). 1
Emergency key element
2 Battery tray X
Insert emergency key element 1 into the
opening in the key and push in the direction
of the arrow.
Battery tray 2 is released.
X Pull battery tray 2 out of the key. 1
Batteries
X Remove old batteries 1 from the battery
tray.
X Insert the new batteries beneath the con-
tact spring with the positive terminal facing
upwards. Use a lint-free cloth to do so.
X Push the battery tray back into the key
housing until the battery tray engages.
X Check the function of all key buttons on the
vehicle. Auxiliary heating* remote control
One 6V pin battery, type 2CR11108 is
required. 1
Battery
2 Battery cover
X Prise apart the side arms of battery cover
2 and slide off battery cover 2.
X Remove old battery 1.
X Insert the new battery. Observe the polarity
signs on the back of the remote control
when doing so.
X Slide battery cover 2 back onto the
remote control.
X Use the remote control to check the vehi-
cle's auxiliary heating functions. Practical advice
* optional
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Changing the bulbs
272
Front bulbs Bulb Type
1 Additional turn
signal lamp
LEDs
29 2 Turn signal lamp PY 21 W
3 Dipped-beam
headlamp
H7 55 W
30
or
D1S 35 W* 31 4 Main-beam
headlamp H7 55 W
Side lamp/park-
ing lamp W 5 W
5 Front foglamp
H11 55 W
29 Rear bulbs
Bulb Type
6 Third brake
lamp
LED
29 7 Rear foglamp
HiP
29 Side lamp/park-
ing lamp
HiP
29 Reversing lamp
HiP
29 Brake lamp
HiP
29
or
LED* 29 Turn signal lamp
HiP
29 8 Licence plate
lighting C 5 W Before changing bulbs
You can replace the following bulbs:
R
Dipped-beam headlamps (vehicles with
halogen headlamps)
R Main-beam headlamps
R Side lamp and parking lamp
R Turn signal lamp (front)
R Licence plate lighting
Observe the following points:
R Use only the bulb types specified here.
R To prevent a short-circuit, switch off the
lights before changing a bulb.
R Only
hold bulbs with a clean, lint-free cloth.
R Do not work with wet or greasy fingers.
R If the new bulb still does not light up, con-
sult a qualified specialist workshop, e.g. a
Mercedes-Benz Service Centre.
i Have the headlamp setting checked reg-
ularly at a qualified specialist workshop,
e.g. a Mercedes-Benz Service Centre.
29 These bulbs must be replaced at a qualified specialist workshop, e.g. a Mercedes-Benz Service Centre.
30 Vehicles with halogen headlamps
31 Vehicles with bi-xenon headlamps*: always have these bulbs changed at a qualified specialist workshop, e.g. a Mercedes-Benz Service Centre. Practical advice
* optional
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2007-11-13T09:28:36+01:00 - Seite 272

Changing the bulbs
273Changing the front bulbsHalogen or bi-xenon* headlamps
1
Bulb holder for turn signal
2 Housing cover for dipped-beam headlamp
(halogen/bi-xenon headlamps)
3 Housing cover for main-beam headlamp/
side lamp
Halogen headlamps
4Bulb holder for main-beam headlamp
5 Bulb holder for side lamp
6 Bulb holder for dipped-beam headlamp
Replacing dipped-beam headlamps
(vehicles with halogen headlamps)
X Switch off the lights.
X Open the bonnet.
X Turn housing cover 2 anti-clockwise and
remove it.
X Turn bulb holder 6 anti-clockwise until it
is released.
X Pull out bulb holder 6
X Change the bulb. X
Insert bulb holder 6 into the headlamp
and turn it clockwise until it engages.
X Place housing cover 2 back on and turn it
clockwise until it engages.
Replacing the bulbs in the main-beam
headlamps
X Switch off the lights.
X Open the bonnet.
X Turn housing cover 3 anti-clockwise and
remove it.
X Turn bulb holder 4 anti-clockwise and
remove it together with the bulb.
X Pull the bulb out of bulb holder 4.
X Insert the new bulb into bulb holder 4.
X Insert bulb holder 4 into the headlamp
and turn it clockwise until it engages.
X Place housing cover 3 back on and turn it
clockwise until it engages.
Changing the bulbs in the side lamps
and parking lamps
X Switch off the lights.
X Open the bonnet.
Practical advice
* optional
219_AKB; 2; 4, en-GB
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Z