key MERCEDES-BENZ E-CLASS SALOON 2008 Owners Manual

Display
messages 261Display 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
Ror 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 Por N. Practical advi
ce
* optional
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Display
messages 279Display 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 317).
X Check the tyre pressure and correct it if nec-
essary (Y page 229).
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 310).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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Display
messages 280 Display messages Possible cause/consequence Possible solution
I Key not detected
The KEYLESS GO key* cannot be detected
at present. X
Change the location of the KEYLESS GO key*
within the vehicle.
X Operate the vehicle using the key in the ignition
lock if necessary. I Key still in vehi-
cle
The KEYLESS GO key* was detected
inside the vehicle during locking. X
Remove the KEYLESS GO key* from the vehi-
cle. I Please replace key The key no longer functions. X
Visit a qualified specialist workshop. X inoperative Bat-
tery weak The battery voltage is insufficient. The
auxiliary heating/ventilation* has
switched off or cannot be switched on. X
Drive for a longer distance.
The battery is being charged. The auxiliary
heating/ventilation* is reactivated as soon as
there is sufficient battery voltage. X inoperative Refuel There is insufficient fuel in the fuel tank.
The auxiliary heating* cannot be switched
on. X
Refuel at the nearest filling station. X inoperative See
Owner's Manual
The auxiliary heating* has a temporary
malfunction or is faulty. X
When the vehicle is on a level surface and the
engine has cooled down: try to switch on the
auxiliary heating* four times, waiting for sev-
eral minutes between each attempt.
X If the auxiliary heating* does not switch on:
visit a qualified specialist workshop. Practical advi
ce
* optional
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Troubleshooting
292 Warning tones
Problem Possible cause/consequence Suggested solutions
The anti-theft warning alarm* is
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 62).You hear a warning tone. A message appears in the multi-
function display. X
See the explanations for the display message (Y page 257).You hear a warning tone. You are driving with the parking
brake applied. X
Release the parking brake. You hear a warning tone. You did not switch off the lights
when leaving the vehicle. X
Turn the light switch to MorU.
or
X If the rear foglamp is switched on: press the light switch in to the
stop. 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 95).You hear a continuous tone. You have switched off the engine
and opened the bonnet or the
driver's door with HOLD activa-
ted. X
Deactivate HOLD (Y page 155). Practical advice
* optional
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Troubleshooting
293Accident
Problem Possible cause/consequence Suggested solutions
Fuel is leaking from the vehicle.
G
Risk of fire
The fuel line or the fuel tank has
been damaged. The leaking fuel
creates a risk of fire or explosion. X
Switch off the ignition immediately.
X Remove the ignition key.
Do not restart the engine under any circumstances. The leaking fuel
creates a risk of fire or explosion.
X Consult a qualified specialist workshop. You are unable to determine the
extent of the damage. X
Consult a qualified specialist workshop. You cannot detect any damage. X
Start the engine as normal. The NECK-PRO head restraints
on the driver's and front-
passenger seats have been trig-
gered. Your vehicle has been involved in
a rear-end collision. X
Reset the NECK-PRO head restraints (Y page 309). Practical advice
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Troubleshooting
294 Fuel and fuel tank
Problem Possible cause/consequence Suggested solutions
Fuel is leaking from the vehicle.
G
Risk of explosion or fire
The fuel line or the fuel tank is
defective. X
Turn the key to position 0in the ignition lock immediately and
remove it.
X Do not restart the engine under any circumstances.
X Consult a qualified specialist workshop. The fuel filler flap cannot be
opened. The fuel filler flap is not released. X
Unlock the vehicle ( Ypage 306). The opening mechanism is jam-
med. X
Consult a qualified specialist workshop. The fuel tank of a vehicle with a
diesel engine has been run com-
pletely dry. There is air in the fuel system. X
Refuel the vehicle.
X Switch on the ignition for approximately 10 seconds (key in posi-
tion 2in the ignition lock).
X Start the engine continuously for up to 40 seconds until it runs
smoothly.
The fuel system is now free of air.
If the engine does not start:
X Wait two minutes.
X Repeat the starting procedure for up to 40 seconds.
If the engine still does not start:
X Consult a qualified specialist workshop. Practical advice
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Troubleshooting
295Engine
Problem Possible cause/consequence Suggested solutions
The engine will not start. HOLD is activated. X
Deactivating HOLD (Y page 155).
X Start the engine again. The engine will not start. You can
hear the starter motor operating. R
There is a malfunction in the
engine electronics.
R There is a malfunction in the
fuel supply. X
Turn the key back to position 0in the ignition lock before the next
starting attempt.
X Try to start the engine again (Y page 110). Avoid excessively long
and frequent attempts to start the engine, as this will drain the
battery.
If the engine does not start after several attempts:
X Consult a qualified specialist workshop. Vehicles with a diesel engine:
The engine will not start. You can
hear the starter motor operating.
The reserve fuel warning lamp is
on and the fuel gauge shows
0. The fuel tank has been run dry. X
Refuel the vehicle.
X Bleed the fuel system (Y page 294).The engine will not start. You can-
not hear the starter motor oper-
ating. The on-board voltage is too low
because the starter battery is too
weak or discharged. X
Jump-start the vehicle (Y page 333).
If the engine does not start despite attempting to jump-start it:
X Consult a qualified specialist workshop. Practical advice
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Troubleshooting
297Automatic transmission*
Problem Possible cause/consequence Suggested solutions
The transmission has problems
shifting gear The transmission is losing oil. X
Have the transmission checked at a qualified specialist workshop
immediately. The acceleration ability is deteri-
orating.
The transmission no longer
changes gear. The transmission is in emergency
mode.
It is only possible to shift into
2nd
gear and reverse gear. X
Stop the vehicle.
X Move the selector lever to P.
X Turn the key to position 0in the ignition lock.
X Wait at least 10 seconds before restarting the engine.
X Move the selector lever to position Dor R.
If D is selected, the transmission shifts into 2ndgear; if Ris selec-
ted, the transmission shifts into reverse gear.
X Have the transmission checked at a qualified specialist workshop
immediately. Practical advice
* optional
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Troubleshooting
299Headlamps and turn signals
Problem Possible cause/consequence Suggested solutions
The headlamps or the turn signals
in the exterior mirrors are misted
up on the inside. Air humidity is very high. X
Drive with the headlamps switched on.
The headlamps are demisted after a short distance. The headlamp housing is not
sealed and moisture has been
able to enter. X
Have the headlamps checked at a qualified specialist workshop. Windscreen wipers
Problem Possible cause/consequence Suggested solutions
The windscreen wipers are jam-
med. Leaves or snow, for example, may
be obstructing the windscreen
wiper movement. The wiper
motor has been deactivated. X
For safety reasons, you should remove the key from the ignition
lock.
X Remove the cause of the obstruction.
X Switch the windscreen wipers back on. The windscreen wipers fail com-
pletely. The windscreen wiper drive is
malfunctioning. X
Select another wiper speed on the combination switch.
X Have the windscreen wipers checked at a qualified specialist work-
shop. Practical advice
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Troubleshooting
301Key
Problem Possible cause/consequence Suggested solutions
You cannot lock or unlock the
vehicle using the key. The key batteries are discharged
or nearly discharged. X
To do this, point the tip of the key at the driver's door handle from
close range and try to unlock or lock the vehicle again.
If this does not work:
X Lock or unlock the vehicle using the emergency key element
(Y page 306).
X Check the key batteries (Y page 310) and replace them if neces-
sary (Y page 310). The key is faulty. X
Lock or unlock the vehicle using the emergency key element
(Y page 306).
X Have the key checked at a qualified specialist workshop. The battery charge indicator lamp
of the key does not go on during
the test. The key batteries are discharged. X
Change the batteries (Y page 310).You have lost a key. X
Have the key cancelled at a Mercedes-Benz Service Centre.
X Report the loss immediately to the vehicle insurers.
X If necessary, have the manual locks changed too. You have lost the emergency key
element. X
Report the loss immediately to the vehicle insurers.
X If necessary, have the manual locks changed too. Practical advice
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