2008 MERCEDES-BENZ CLS COUPE open bonnet

Display messages
223Display messages Possible cause/consequence Possible solution
P Selector lever in
park position You have switched off the engine with the
KEYLESS
GO button* and opened the driv-
er's door.
or
With HOLD activated, you have either:
R opened the driver’s door and released
the seat belt or
R switched off the engine or
R opened the bonnet
The horn may also sound at regular inter-
vals. The horn becomes louder if you
attempt to lock the vehicle.
The engine cannot be started. X
Move the selector lever to P.
The engine can be started again. P Selector lever in
park position You have tried to switch off the engine
with the KEYLESS GO button*

while the
selector lever is in position R or D. X
Move the selector lever to P. Please shift to P or N You have attempted to start the engine
while the selector lever is not in position
P or N. X
Move the selector lever to P or N. PRE-SAFE inoperative See
Owner's Manual
PRE-SAFE
®
has failed. All other occupant
safety
systems, e.g. airbags, remain avail-
able. X
Visit a qualified specialist workshop. Practical advice
* optional
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Display messages
228 Symbol messages
G
Risk of accident and injury
Always have maintenance work carried out at a qualified specialist workshop which has the necessary specialist knowledge and tools to
carry out the work required.
Mercedes-Benz recommends that you use a Mercedes-Benz Service Centre for this purpose.
In
particular, work relevant to safety or on safety-related systems must be carried out at a qualified specialist workshop. If this work is not
carried out correctly, the operating safety of your vehicle could be compromised. There is a risk of accident and injury. Display messages Possible cause/consequence Possible solution
# The battery is not being charged. Possible
causes:
R
faulty alternator
R torn poly-V-belt
R malfunction in the electronics X
Stop immediately and safely when traffic con-
ditions allow and check the poly-V-belt.
X If it has torn: do not drive on. Contact the
nearest qualified specialist workshop.
X If it is not damaged:
have the vehicle checked
as soon as possible at a qualified specialist
workshop. Ê The boot lid is open. X
Close the boot lid. Y G
Risk of accident
Vehicles with an anti-theft alarm sys-
tem*: you are driving with the bonnet
open. X
Stop the vehicle. Pay attention to the traffic
conditions as you do so.
X Close the bonnet. Practical advice
* optional
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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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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
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Z

Changing the bulbs
274
X
Turn housing cover 3 anti-clockwise and
remove it.
X Turn main-beam headlamp bulb holder 4
anti-clockwise until it disengages and then
remove it together with the bulb.
X Turn the bulb anti-clockwise, applying
slight pressure, and remove it from bulb
holder 5.
X Insert the new bulb into bulb holder 5 and
turn it clockwise.
X Pull out bulb holder 5.
X Insert main-beam headlamp 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.
Replacing the turn signal lamps X
Switch off the lights.
X Open the bonnet.
X Turn bulb holder 1 anti-clockwise and
remove it along with the bulb.
X Turn the bulb anti-clockwise, applying
slight pressure, and remove it from bulb
holder 1. X
Insert the new bulb into bulb holder 1 and
turn it clockwise.
X Insert bulb holder 1 into the headlamp
and turn it clockwise until it engages. Changing the rear bulbs
Replacing the licence plate lamp Licence plate lighting
1
Screws
X Switch off the lights.
X Open the boot lid.
X Remove screws 1.
X Remove licence plate lamp .
X Replace the bulb. X
Insert licence plate lamp .
X Replace and tighten the screws 1.Practical advice
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