engine MERCEDES-BENZ CLK CABRIOLET 2004 Owners Manual

311
Practical advice
Tr ou bleshooting Problem Possible cause Suggested solutions
-
The yellow ABS indicator lamp
lights upwhile the engine isrun-
ning. ABS is deactiv
ated due to a malfunction. This
means that ESP and BAS are also deactivated
(s ee the messages in the multi-function dis-
play). The brake system is sti llavailable and
works as normal without ABS. 6
Continue driving, but with even great-
er care.
6 Visit a qualified specialist workshop
immediately whi chhas the necessary
specialist knowledge and tools to car-
ry out the work required.
Mercedes-Benz recommends that you
us ea Mercedes-Benz Servi ceCentre
for this purpose. In particular, work
relevant to safety or on safety-related
systems must be carr ied out at a qual-
ified spe cialist workshop.
G Otherwise, there is a risk ofan
accident. ABS
has been dea ctivated due to under volt-
age. It is possib lethat the battery isnot being
charg ed. 6
Switch off any consumers that are not
require d.
ABS becomes available again once
the battery vo ltage increases. l
Thered dista nce war ning lamp
lights up while you are driving. The distance to the vehicle in front is too
sh
ort for the speed selected. 6
Increase the distance. 209en_d2.boo Seite
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314 Practical advice
Trouble
shoo ting Problem Possible cause Suggested solutions
D
The red coolant warning lamp
lights up wh ile the engine is
running. There is insufficient coolant in the reservoir. 6
Top up the coolant immediately, oth-
erwise the engine could ove rheat
(= page 247). If this warning lamp lights up frequently,
there is a leak in the cool
ing system. 6
Have the cooling system checked. If the coolant lev
elis correct, the radiator fan
may be faulty. 6
If the coolant temperature is below
12 5° C, you can drive on to the near-
est qualifie dspec ialist wor ksho p, e .g.
a Mercedes-Benz Servi ceCentre.
6 Avoid plac ing a heavy strai non the en-
gi ne (e.g. driving on mountain roads)
and stop /start driving. D
The red coolant warning lamp
lights up while you are dri ving
and you can hear an audible
warning. The coolant temperature has
exceeded
125 °C. 6
Stop as soon as possible and allow
the engine and the coolant to cool
down. 209en_d2.boo Seite
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315
Practical advice
Tr ou bleshooting Problem Possible cause Suggested solutions
±
The yellow engine diagnostic in-
dicator lamp lights up while you
are driving. There is a malfunction:
!
in the engine management system
! in the fuel injection system
! in the ignition system, or
! in the exhaust system
The emission limit values may be exceeded
and the engine may be runn ing in emergency
mode. 6
Have the vehicle checked as soon as
possible at a qualified specia list wo rk-
shop, e.g. a Mercede s-Benz Service
Centre. The fuel tank has run dry. 6
Start the engine three to four times
after refuelling.
6 Emergency mode is cancelled. You
do not need to have your vehicle
check ed. \
The yellow roll-over bar warning
lamplights up or flickers when
the engine is sw itched on. The roll-o
ver bar release system is faulty. 6
Release the roll-over bars manually
and have them checked immediately
at a qual ified specialist workshop, e.g.
a Mercedes-Benz Service Centre.
G Otherwise, there is a risk ofan
accident. 209en_d2.boo Seite
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316 Practical advice
Trouble
shoo ting Problem Possible cause Suggested solutions
<
Thered seat belt warning lamp
lights up and you also hear an in-
termittent audible signal. The
warning lamp is to remind you to fasten
the sea tbelt.
It lights up ifthe driver has not fastened his
seat belt as soon as:
! the engine isrunning
! the drive r's door is closed
The intermittent signal sounds for approxi-
mately 93 seconds as soon as you exceed a
road speed of 25 km /h. 6
Fasten your seat belt ( =page 32).
The warning lamp goes out and the
audible signal ceases.
The audible signal ceases automati-
cally after no more than 93 seconds,
even ifyou have not fastened your
seat belt. You have placed objects on the seat. 6
Remove the objects fro mthe seat.
or 6 Sec ure them with the seat belt. A
The yellow reserve fuel warning
lamp lights up while you are driv-
ing. The petrol or diesel level has fallen into the
reserve range. 6
Refuel at the nearest filling station
(=
page 241). 209en_d2.boo Seite
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318 Practical advice
Trouble
shoo ting Problem Po
ssible caus e/consequ ence Su
ggested solutions You hear a
warning signal. A message appears
inthe multi-function
display. 6
Comply with the notes on ( =page 281). You are driving with the parking brake ap-
pli
ed. 6
Release the parking brake ( =page 43). You have opened the drive
r's door and for-
go tten to switch off the lights. 6
Turn the light switch to 0. You have not fastened your seat bel
t. 6
Fasten your seat belt ( =page 32).
G There isothe rwise a risk of inju ry. Vehicles wit
hautom atic transmission*:
You have:
! switched off the engine
! opened the driver's door
! not moved the selector lever to P 6
Move the selector le ver to P. 209en_d2.boo Seite
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319
Practical advice
Tr ou bleshooting Accident
Problem Possible cause
/consequ ence Suggested sol
utions The vehicle is losing fuel. The fuel
line or tank is faulty. 6
Switch off the ignition immediately.
6 Remove the ignition key.
6 Do not restart the engine under any cir-
cumstances.
There is a risk of fire or explosion.
6 Consult a qualified specialist workshop,
e.g. a Mercedes-Benz Servi ceCentre. The extent of the damage cannot be de-
termined. 6
Consult a qualif ied specialist workshop,
e.g. a Mercedes-Benz Servi ceCentre. There appears to be no damage to:
!
the major assemblies
! the fuel system
! theengine mountings 6
Start the engine as usual. 209en_d2.boo Seite
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321
Practical advice
Tr ou bleshooting Fuel
and fuel tank Problem Possible caus
e/consequ ence Suggested sol
utions The vehicle is losing fuel. The fuel
line or tank is faulty. 6
Switch off the ignition immediately.
6 Remove the ignition key.
6 Do not restart the engine under any
circumstances.
There isa risk ofignition or explosion due to
the leaking fuel.
6 Inform a qualified speci alist workshop,
e.g. a Mercedes-Benz Servi ceCentre. 209en_d2.boo Seite
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322 Practical advice
Trouble
shoo ting Problem Po
ssible caus e/consequ ence Su
ggested solutions The fuel tank has run dry in a vehicle with
a diesel engine. There is air
inthe fuel system. 6
After refuelling, turn th estarter motor
for up to 60 seconds without interrup-
tion until the engine is runn ing smooth-
ly.
The fuel system is bled.
If the engine does not start:
6 Wait for two minutes.
6 Repeat the startin gprocedure for up to
60 seconds.
If the vehicle still does not start:
6 Consult a qualified specialist workshop,
e.g. a Mercedes-Benz Service Centre. The fuel filler flap cannot be opened. The fuel filler flap
isnot unlocked. The
batteries in the remote control or the
KEYLESS GO key* are discharged. 6
Unlock the boot using the emergency
key element (
=page 34 1).
6 Unlock the fuel filler flap manually
( = page 342). The fuel filler flap
isunlocked but the
opening mechanism is jamme d. 6
Consult a qualified specialist workshop,
e.g. a Mercedes-Benz Service Centre. 209en_d2.boo Seite
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323
Practical advice
Tr ou bleshooting En
gine Problem Possible caus
e/consequ ence Suggested sol
utions The engine does not start. You can hear
th
e starter motor working. !
There may be a malfunct ion in the en-
gine electronics.
! There may be a malfunction in the fuel
supply. 6
Turn the ignition back to 0before at-
tem pting to rest art the engine.
6 Restart the engine ( =page 38). Note
that excessively long and freque ntat-
tem pts to st artth eengine may drain the
battery.
If the engine stil ldoes not start after several
attempts:
6 Consult a qualified specialist workshop,
e.g. a Mercedes-Benz Servi ceCentre. Vehicles with a diesel eng
ine:
The engine does not start. You can hear
th e starter motor working. The reserve
fuel warning lamp is lit and the fuel gauge
is showing 0. The fuel tank has run dry. 6
Refuel the vehicle.
6 Bleed the fuel system ( =page 322). 209en_d2.boo Seite
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324 Practical advice
Trouble
shoo ting Problem Po
ssible caus e/consequ ence Su
ggested solutions The engine does not start. You cannot
hear
the sta rter mo tor wor king. The on-board
voltage is too low (the start-
er battery is discharged or nearly dis-
char ged). 6
Jump-s tarting may beperform ed.
If the engine does not start despite jump-
starting:
6 Consult a qualified specialist workshop,
e.g. a Mercedes-Benz Service Centre. Vehicles with a petrol engine:
the engine is not running smoothly and is
misfiring. The
engine electronics or a mechanical
component in the engine con trol system
is faulty. 6
Do not use too much throttl e.
6 Have the cause rectified immediately at
a qualified specialist workshop, e.g. a
Mercedes-Benz Service Centre.
Non-combusted fuel can otherwise get
into the catalytic co nverter and dama ge
it. Vehicles with a diesel engine:
the engine does not switch off. 6
Open the main fuse box (= page 386).
6 Pull out the two fuses markedMOTOR NOT
AUS
using the fuse extractor.
The engine stops.
If you wish to restart the engine:
6 Put the fuses bac kin. 209en_d2.boo Seite
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