2007 MERCEDES-BENZ C-CLASS SALOON warning light

Troubleshooting
28
7 Problem Possible cause/consequence Suggested solutions
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 Mor* . You hear a warning tone.
G
Risk of injury
The driver or front passenger ha s
not fastened their seat belt. X
Fasten your seat belt (Y page 98). Accident
Problem Possible cause/consequence Suggested solutions
Fuel is leaking from the vehicle.
G
Risk of fire
The fuel line or the fuel tank ha s
been damaged. X
Switch off the ignition immediately.
X Remove the ignition key.
X 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 th
e
extent of the damage. X
Consult a qualified specialist workshop. You cannot detect any damage. X
Start the engine as normal. Practical advice
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Troubleshooting
29
1 Problem Possible cause/consequence Suggested solutions
Vehicles with a petrol engine:
The engine is not running
smoothly and is misfiring. The engine electronics or
a
mechanical component of the
engine control unit have been
damaged. X
Only depress the accelerator pedal slightly.
X Have the cause rectified immediately at a qualified specialist work-
shop .
Otherwise, non-combusted fuel may get into the catalytic converter
and damage it. A coolant temperature of over
120 °C is displayed. The coolant
warning lamp may also be on and
a warning signal may sound
(
Y page 123). The coolant level is too low. The
coolant is too hot and the engin
e
is no longer being cooled suffi-
ciently. X
Stop as soon as possible and allow the engine and the coolant to
cool down.
X Check the coolant level (Y page 209). Observe the warning notes
as you do so and top up the coolant if necessary. If the coolant level is correct, the
radiator fan may be faulty. The
coolant is too hot and the engin
e
is no longer being cooled suffi-
ciently. X
If the coolant temperature is less than 120°C, you can continue
driving to the nearest qualified specialist workshop.
X Avoid heavy loads on the engine as you do so, e.g. when driving on
mountain roads and stop/start driving . Practical advice
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Troubleshooting
29
3 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 230).
X Switch the ignition back on. Only the red segments in the
Parktronic warning display are lit.
Parktronic is deactivated afte
r
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
* optiona l
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Flat tyre
316
X
Remove the cap from valve 9on the faulty
tyre. a
Pressure release screw
b Pressure gauge
X Make sure pressure release screw aon
pressure gauge bis fully closed.
X Screw filler hose 8onto valve 9.
X Insert connector 5into the cigarett e
lighter socket (Y page 197) or into a 12V
socket* in your vehicle (Y page 198).
X Turn the ignition key to position 1in the
ignition lock . X
Press on/off switch 4on the electric air
pump to I.
The electric air pump is switched on. The
tyre is inflated.
i First, TIREFIT is pumped into the tyre. The
pressure can briefly rise to around 5 bar.
Do not switch off the compressor during
this phase.
X Let the compressor run for five minutes.
The tyre should then have a pressure of at
least 1.8 bar.
! Do not operate the electric air pump for
longer than six minutes without a break,
otherwise it may overheat.
The air pump can be operated again once
it has cooled down.
If a pressure of 1.8 bar is not reached after
five minutes:
X Switch off and disconnect the electric ai r
pump and drive the vehicle forwards or
backwards approximately 10 m.
This distributes the TIREFIT more evenly.
X Remove the TIREFIT filler bottle from th e
electric pump.
X Pump up the tyre again. G
Risk of accident
If a pressure of 1.8 bar is not achieved afte r
five minutes, the tyre is too badly damaged.
Do not drive any further. Consult a qualified
specialist workshop which has the neces-
sary specialist knowledge and tools to carry
out the work required. Mercedes-Benz rec-
ommends that you use a Mercedes-Benz
Service Centre for this purpose. In particu-
lar, work relevant to safety or on safety-
related systems must be carried out at a
qualified specialist workshop.
If a tyre pressure of 1.8 bar is reached:
X Press on/off switch 4on the electric air
pump to 0.
The electric air pump is switched off.
X Disconnect the electric air pump and stow
it away .
X Fold up the warning triangle and stow it
away .
X Pull away immediately.
This distributes the TIREFIT more evenly
around the tyre.
X Stop after driving for approximately ten
minutes and check the tyre pressure with
the electric air pump. Practical advice
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Flat tyre
3187
Valve
8 Filler hos e
X Remove the cap from valve 7on the faulty
tyre.
X Screw filler hose 8onto valve 7.
X Insert connector 4into the cigarett e
lighter socket (Y page 197) or into a 12V
socket* in your vehicle (Y page 198).
X Turn the ignition key to position 1in the
ignition lock .
X Press on/off switch 3on the electric air
pump to I.
The electric air pump is switched on. The
tyre is inflated. i
First, TIREFIT is pumped into the tyre. The
pressure can briefly rise to around 5 bar.
Do not switch off the compressor during
this phase.
X Let the compressor run for five minutes.
The tyre should then have a pressure of at
least 1.8 bar.
! Do not operate the electric air pump for
longer than six minutes without a break,
otherwise it may overheat.
The air pump can be operated again once
it has cooled down.
If a pressure of 1.8 bar is not reached after
five minutes:
X Switch off and disconnect the electric ai r
pump and drive the vehicle forwards or
backwards approximately 10 m.
This distributes the TIREFIT more evenly.
X Remove the sealant filler bottle from th e
electric pump.
X Pump up the tyre again. G
Risk of accident
If a pressure of 1.8 bar is not achieved afte r
five minutes, the tyre is too badly damaged. Do not drive any further. Consult a qualified
specialist workshop which has the neces-
sary specialist knowledge and tools to carry
out the work required. Mercedes-Benz rec-
ommends that you use a Mercedes-Benz
Service Centre for this purpose. In particu-
lar, work relevant to safety or on safety-
related systems must be carried out at
a
qualified specialist workshop.
If a tyre pressure of 1.8 bar is reached:
X Press 0on the electric air pump switch.
The electric air pump is switched off.
X Disconnect the electric air pump and stow
it away .
X Fold up the warning triangle and stow it
away .
X Pull away immediately.
This distributes the TIREFIT more evenly
around the tyre.
X Stop after driving for approximately ten
minutes and check the tyre pressure with
the electric air pump. G
Risk of accident
If the tyre pressure is now lower than
1.3 bar, the tyre is too badly damaged. Do
not drive any further. Consult a qualified Practical advice
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