check engine MERCEDES-BENZ CLK COUPE 2004 User Guide

245
Operation
Engine compartment Clos
ing
6 Lower the bonnet and let it drop closed
from a height of about 20 cm.
You will hear the bonnet catch engag-
ing.
6 Check that the bonnet has engaged
properly.
If the bonnet can be raise dslightly, itis
not prope rly locked. Open itagain and
close it with a little more force.
The vehicle consumes a maximum of 0.8 l
of oil per 1,00 0km, depending on the driv-
ing style adopted. Oil consumption may
also be hi gher if:
! the vehicle isnew
! you often drive at high engine speeds
You will only be able to estimate the oil
consumption after you have driven a con-
siderable distance. i
Lubricant additives maynot be use dsince
th ey could damage the asse mblies. The useof
suc h ad ditive s,wh ich have notbee nappro ved by
Me rcedes-Benz, will result in limitation of war-
ra nty right s.
You may obtai nfurth erinformation fro many
Me rcedes-Benz Service Centre. Ch
ecking thee ngineoil level
When checking the oil level, the vehicle
must:
! be standing level
! be at normal operating tempe rature
! have been standing with the engine
switched off for at least five minutes
Ch eck the engine oil level using the ope rat-
ing syst em.
6 Turn the key to position 2in th eigni-
tion lock. The
standard display appears in the mul ti-
function display (= page 120).
6 Press the korj button on the
mu lti-function steering wheel repeat-
edly until the following message ap-
pears in the display:
After measuring, the following messag-
es may appear: !Engine oillevel o. k.
!Add1.0l itre to reachmax. oil
level!
!Add 1. 5litre sto reach max. oil
level!
!Add 2. 0litre sto reach max. oil
level!
6 Top up the oil ifnecessary. En
gine oil P 54.30-5240-31209en_d2.boo Seite
245 Dienstag, 25. Mai 2004 7:26 19

247
Operation
Engine compartment
There is no need for you to check the oil
level in the autom atictransmission. In the
event of oil loss or problems with gear
shifts, have the automatic tr ansmiss ion
checked at a qualified specialist workshop,
e.g. at a Mercedes-Benz Service Centre.
Coolant is a mixture of water, antifreeze
and corrosion inhibitor. Only check the
coolant level when the vehicle is standing
on a level surface and the engine has
cooled down.
The expansion tank is located in the engine
compartment on the right-hand side when
vi ewed inthe direction of travel. 1
Expans ion tank
6 Slowly unscrew the cap by about one
half turn and allow exc esspr essure to
escape.
6 Then continue to unscrew the cap and
rem ove it.
6 The coolant level is correct if:
! when the coolant is cold, it reaches
the mark inthe expansion tank filler
neck
! when the coolant is hot, it reaches
approximately 1.5 cm higher 6
Top up the coolant in the filler neck if
necessary.
6 Rep lace th e cap by tur ningitt o the
stop.
You will find further informat ion about
coolant inthe "Technical data" section
( = pa ge 415). Oil level in automatic
transmission* Coolant
G
Riskof injury The
coolingsyste mi s pressurised. You
shou ld therefore only unscrew the cap once
the engine has cooled down. You could oth-
er wi se be scald edby hot coolant. P20.30-2149
-31 209en_d2.boo Seite
247 Dienstag, 25. Mai 2004 7:26 19

255
Operation
Driving tips
You will find basic driving tips inthe
"Getting started" section ( =page 32). On
long and steep downward gradients,
you shou ldshi ftto a lower gear (shift rang-
es 1,2or 3) (
=page 137). This prevents
the brakes overheat ing and wearing too
qui ckly.
If you have subjected the brakes to a very
high load, do not switch the vehicle off im-
mediately, but drive on for a short dis-
tance. The brakes will cool more qui ckly in
the airflow.
If you drive for a long period in heavy rain
withou tbr ak ing, the first tim eyou br ake:
! the brakes may not react immediately
! you may have to depress the brake
more firmly
You should therefore maintain a greater
distance from the vehicle in front. Brake carefully after driving on a
wet road
surface, particularly if sal thas been spread
on the road. The brake discs will become
warm, will dry quicker and will be protect-
ed from corros ion.
If you only use the brakes moderately, you
shoul doccasionally check their effective-
ness. To do so, brake more firmly and at a
higher speed. This improves brake grip.
Mercedes-Benz recommends that, for
safety reasons, you only fit brake pad sto
your vehicle whi chhave been approve dfor
Mercedes-Benz. Brake pads whi chhave
not been approved for Mercedes-Benz ve-
hicles may adversely affect the safety of
your vehicle. Dr
iving tips Rolling with the engine swi
tchedoff G
Risk of accident There is no power assistance for the
steer-
ing or service brake when the engine is not
running.
You will re quire considerably more effort to
st eer and brake and you could therefore
lose control of the veh icle and cause an
accid ent.
Never switch the engine off while the vehicle
is in motion. Braking
G
Risk of accident Make sure that other road users ar
enot en-
dangered when you brake. 209en_d2.boo Seite
255 Dienstag, 25. Mai 2004 7:26 19

257
Operation
Winter driving
Have your vehicle winterproofed at a
qualified specialist workshop, e.g. at a
Mercedes-Benz Service Centre, at the on-
set of winter. This servi ceincludes the fol-
lo wi ng:
! Engine oil change,
if the current oil used has not been
approved for winter use
! The antifreeze /anti-corrosion
concentration is checked
! A concentrated cleanin gagent is
added to the windscreen and headl amp
cleaning system fluid*
! The battery is checked
! A tyre change Us
ewinter tyres at temperatures below
+7 °C and on snow or ice-covered roads.
Th e maximum effect of the ABS and ESP
dri ving systems is on lyachieved in win ter
with these tyr es.
Us ewinter tyres of the same make and
tread on all wheels to maintain safe han-
dling characteristics. Always observe the maximum permitted
speed sp
ecified for the winter tyres you
have fitted. If you fit winter tyres whi ch
have a lower maximu mpermitt ed speed
than that of the vehicle, affix an appropri-
ate warning sign in the driver's field of
vision. This ca nbe obtained at a qualified
specialist workshop, e.g. at a Mercedes-
Benz Service Centre.
In such circumstances, you should also
restrict the maximum speed of the vehicle
to the maximum permitted speed for the
winter tyres using permanent Speedtronic
( = pa ge 211). Winter dri
ving Win
terty res* G
Risk of accident You must re
place wint ertyres with tread
de pth sof less than 4 mm immediately.
These tyres are no tsuitable for use in winter
an d do not provide sufficient grip. You could
therefore lose control of the vehicle and
cause an accide nt. 209en_d2.boo Seite
257 Dienstag, 25. Mai 2004 7:26 19

292 Practical advice
Display
messages Display messages Pos
sible cause /consequence Possible solution
PSelector
lever
in park position !
You have swi tched off the en-
gine using the KEYLESS GObut-
ton* with the selector lever in
position Nand opened the driv-
er's door.
or
! You have tried to switch off the
engine using the KEYLESS GO
button* with the selector lever
in position Ror D. 6
Move the selector le ver to P.
Selector leverin
position Por N Yo
u have tried to sta rtthe engine
with the selector le ver in position R
or D. 6
Move the selector lever to Por N. Sp
eed-
tronic/
cruise
control
Visit work shop! Speedtronic, cruise control or
Distronic* is faulty. 6
Have Speedtronic, cruise control or
Distronic* checked at a qualified specialist
workshop, e.g. a Mercedes-Benz Servi ce
Centre. SRS
Restraint
system
defective
Visit work shop! The restraint systems have mal-
functioned. 6
Visit a qualified specialist workshop imme-
diately, e.g. a Mercedes-Benz Service Cen-
tre. 209en_d2.boo Seite
292 Dienstag, 25. Mai 2004 7:26 19

303
Practical advice
Display messag esDisplay messages Possible cause
/consequ ence Possible sol
ution OBonnet
open! You are driving
with the bonnet
open. 6
Close the bonnet ( =page 244). :
Engine
oillevel
Stop, engine off! There
isno oil in the engine. There
is a danger of engine damage. 6
Switch off the engine.
6 Check the engine oil level and top up the oil
if necessary ( =page 245).
Engine oillevel
Visit workshop! The measuring system is malfunc-
tioning. 6
Have the measuring system checked at a
qual ified specialist workshop, e.g. a
Mercedes-Benz Serv ice Ce ntre.
Engine oillevel
Reduce oillevel! You have added too much engine
oil
.There is a risk of damaging the
engine or catalytic converter. 6
Siphon off the oil. Observe the legal re-
quirements.
Engine oil
Visit workshop! The engine oil level has dro
pped to
a critical le vel. 6
Check the engine oil le vel (= page 245)
and top up the engine oil if necessary.
6 Have the engine checked for leaks if the
engine oil needs toppi ngup more often
than usu al. The oil contains water. 6
Have the oil checked. :
Engine
oillevel
Add 1 litre engineoil
when nextrefuelling The engine oil level is too low. 6
Check the engine oil level and top up the oil
if necessary ( =page 245). 209en_d2.boo Seite
303 Dienstag, 25. Mai 2004 7:26 19

305
Practical advice
Display messag esDisplay messages Possible cause
/consequ ence Possible sol
ution HTyre
pressu remonitor
not available! The tyre pressure loss warning fea-
ture has
been deactivat eddue toa
fault. 6
Have the tyre pressure loss warning*
checked at a qualified specialist workshop,
e.g. a Mercedes-Benz Servi ceCentre. F
Key
Check battery! The KEYLESS GO key* batteries are
discharged. 6
Chang ethe batteries ( =pa ge 354). F
Key
not detected! The KEYLESS GO key* is
not detect-
ed while the engine is running be-
cause:
! the key is not inside the vehicle
! there is strong interference
from a radio source 6
Stopyour vehicle as soon as itis safe to do
so.
6 Look for the key.
Switchi ngoff the engine prevents you from
locking the vehicle centrally or starting the
engine.
Operate the vehicl eusing the key function. F
Key
not detected! The KEYLESS GO key* is currently
not detected. 6
Alterthe position of the key in the vehicle.
6 Insert the key into the ignition lock and op-
erate the vehicle using the ignition lock. 209en_d2.boo Seite
305 Dienstag, 25. Mai 2004 7:26 19

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
314 Dienstag, 25. Mai 2004 7:26 19

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
315 Dienstag, 25. Mai 2004 7:26 19

325
Practical advice
Tr ou bleshooting Problem Possible caus
e/consequ ence Suggested sol
utions The coolant temperature gauge is above
+130 °C. The coolant warning lamp may
also be
lit and a warning signal may sound
( = pag e107). The coolant
level is too low. The coolant is
too hot and the engine is no longer being
cooled sufficiently. 6
Stop as soon as possible and allow the
engine and the coolant to cool down.
6 Check the coolant level, while observing
the warn ings, and top up the coolant if
nec essary (
=page 247). If the coolant
level is correct, the radiator
fan may be faulty. The coolant is too hot
and the engine is no longer being coo led
sufficiently. 6
If the coolant temperature is below
130 °C ,you can drive on to the nearest
qual ified specialist workshop, e.g. a
Mercedes-Benz Serv ice Ce ntre.
6 When doing so, avoid placing a heavy
strain on the engine (e.g. driving on
mo untain roads) and stop /start driving. 209en_d2.boo Seite
325 Dienstag, 25. Mai 2004 7:26 19