2004 MERCEDES-BENZ CLK COUPE engine coolant

13
At a glance
Instrument cluster
1O n vehicles without Distronic*, thesy mbol
go es out when the engine is running, but has no
funct ion. Function Page
1 Turn signal indicator
lamp 40
2 ESP
warning lamp 310
3 Segments 106
4 Distance warning lamp
1 19
7,
312 5 Turn signal indicator
lamp 40
6 Restraint systems warn-
ing lamp 312
7 ABS indicator lamp 68,
311 8 Seat belt warning lamp 316
9 Coolant temperature
gauge 107 Fun
ction Page
a Coolant temperature
warning lamp 314
b Main-beam indicator
lamp 102
c Rev
counter 107
d Multi-function display 108
e Trip
meter 106
f Status indicator 113
g Standard display 112
h Automatic transmis-
sion*:
dr
ive program display
CLK 55 AMG:
drive program display,
upsh ift displ ay 138
146
j Total dista
nce rec orde r k Automatic transmis-
sion*:
selector lever position
display 138 Fu
nction Page
l Speedometer 106
m Brake system
indicator
lamp 312
n Engine diagnostic indica-
tor la
mp 315
o Ro
ll-over bar war ning
lamp 315
p Clock 121
q Vehicles with a diesel
eng
ine:
preglow indicator lamp 37
r Reserve fuel warning
lamp 316
s Fuel gauge
t Re
set button 106209en_d2.boo Seite
13Diens tag, 25 .Mai 2004 7:26 19

15
At a glance
Instrument cluster
1O n vehicles without Distronic*, thesy mbol
go es out when the engine is running, but has no
funct ion. Function Page
1 Turn signal indicator
lamp 40
2 ESP
warning lamp 310
3 Segments 106
4 Distance warning lamp
1 19
7,
312 5 Turn signal indicator
lamp 40
6 Restraint systems warn-
ing lamp 312
7 ABS indicator lamp 68,
311 8 Seat belt warning lamp 316
9 Coolant temperature
gauge 107 Fun
ction Page
a Coolant temperature
warning lamp 314
b Main-beam indicator
lamp 102
c Rev
counter 107
d Multi-function display 108
e Trip
meter 106
f Status indicator 113
g Standard display 112
h Automatic transmis-
sion*:
dr
ive program display
CLK 55 AMG:
drive program display,
upsh ift displ ay 138
146
j Total dista
nce rec orde r k Automatic transmis-
sion*:
selector lever position
display 138 Fu
nction Page
l Speedometer 106
m Brake system
indicator
lamp 312
n Engine diagnostic indica-
tor la
mp 315
o Ro
ll-over bar war ning
lamp 315
p Clock 121
q Vehicles with a diesel
eng
ine:
preglow indicator lamp 37
r Reserve fuel warning
lamp 316
s Fuel gauge
t Re
set button 106209en_d2.boo Seite
15Diens tag, 25 .Mai 2004 7:26 19

107
Controls in detail
Instrument cluster
The coolant temperature gauge is located
on the right-hand side of the instrument
cluster.
The temperature displayed may climb to
120 °Cwhen the vehicle is being driven in
normal conditions and if the coolant con-
tains the correct concentration of corro-
sion inhibitor and antifreeze.
The red band in the rev counter indicates
the engine's overrevving range. The engine
speed is limited to protect the engine when
the red band is reached.
! Do not driv ein the overrevving range. Doing
so could damage the engine. There may be a short delay before a lower
outside temperature is displayed, for
example after leaving a garage.
There may also be a short delay before a
rise in the outside temperature is dis-
played. This prevents an incorrect temper-
ature displ
aycaused by heat from the
engine when the vehicle is stationary or
mo ving slowly.
i You can set the unit for the out side temper-
ature display using the operating syst em
( =
page 119). Co
olant temperature gauge Rev counter Outside temperature displ
ay G
Risk of accident Even if the temperature displayed is just
above freezing point, the road
surface may
still be icy, especially inwooded areas or on
br idges. The vehicle could skid if you fail to
adapt your driving style accordingly. For this
reason, always adapt your driving style and
speed to the weather conditions. 209en_d2.boo Seite
107 Dienstag, 25. Mai 2004 7:26 19

128 Controls in detail
Operating system
Sel
ecting the heater booster settings
You can only see this function ifyour vehi-
cle has a diesel engine. You can use the
heater booster to warm up the vehicle inte-
rior to the temperature you require more
qui ckly.
6 Move the bar to theHeatersubmenu
using the æorç button.
6 Press the jork button repeat-
edly until you see the
Function Heater
booster
message.
The current setting is highlighted. 6
Select the function you require using
the æ orç button. You can
select the following:
!
Automatic
The heater booster is switched on if
the outside temperature is below
8° C and the coolant temperature
is less than 70 °C. It switches itself
off again at higher temperature s.
!
Off
The heater booster is switched off.
Th is saves fuel. !
off by
AC-OFF
You can switch the heater booster
on and off using the ACOFF
(econ-
omy mode) button on the Thermatic
(= page 154) or Thermotronic*
(= page 164) system.
Switched off:
Th eindi cat or la mp in the
AC OFF
button comes on.
Switched on:
Th eindi cat or la mp in the
AC OFF
button is not lit.
The heater booster is switched on if
the outside temperature is below
8° C and the coolant temperature
is less than 70 °C. It switches itself
off again at higher temperatures.
P54.30-5227-31 209en_d2.boo Seite
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171
Controls in detail
The rmotronic* (intelligent air conditionin g)
Switching off /opening
6 Press the Obutton for longer than
two seconds.
The indicator lamp in the button goes
out. The side windows and the sliding /
tilting sunroof* move back to their ori g-
inal position. Air-recirculation mode is
switched off.
i If you op ena window orthe slidi ng/tilting
sunroof* manually after they have been closed
us ingthe convenienc e closing featu re,the ywi ll
remain in this positio nwhen opened using the
convenience opening feature. Ac
tivated charcoal filter with pollutant- sensitive air-re
circulation mode
The act ivat ed charcoal filter reduces pol-
lutants and odours taken into the vehicle
from the outside air. You can swi tch the
activated charcoal filter on or off as you
wi sh.
Th ermotronic automatically switches to
ai r-rec irculation mo deif:
! the activated charcoal filter is switched
on
! speci fied carbon monoxide or nitro gen
oxide values are exceeded in the out-
side air
i Polluta nt-s ensitive air-recirculation mode is
not avai lable if the cooling function is switched
off ( =
page 172) or the out side temperature has
fallen below 5°C.
Switching on
6 Press the ebutton.
The indicator lamp in the button lights
up. The activated charcoal filter is
switched on. Switching off
6 Press the ebutton.
The indicator lamp in the button goes
out. The activated charcoal filter is
switched off.
When you switch off the engine, you can
heat the vehicle for up to a further 30 min-
utes us ing the engine's residual heat.
i Theheatingtim edepen dson:
! the interior temperature seton the control
panel ( =page 165)
! the coolant temperature
The blower runs at a low speed regardless of the
air flow setting. G
Risk of accident Make sure that nob
ody can become trapped
when the slidin g/tilting sunroof* and the
sid ewindows are bei ngclosed.
Pr ess the roof switch in the appropriate
dire ction to halt the closing procedure and
open the slidi ng/tilting sunroof*. Residual heat209en_d2.boo Seite
171 Dienstag, 25. Mai 2004 7:26 19

174 Controls in detail
Heater booster system* for vehicles
with a diesel engine
During the warm-up phase after the engine
is started, the heater booster system
ensures that:
! the engine reaches normal operating
temperature more qui ckly
! the vehicle interior is heated more
quickly
The heater booster system is switched on
when:
! the heater booster system is activated
! the outside temperature is below 8 °C
! the coolant temperature isbelow
70 °C You can use the operating system to con-
figure the settings for heater bo
oster sys-
tem operation ( =pag e128)
!Automatic:
The heater booster system is activated
and is switched on and off automati-
cally as required
!
Off:
The heater booster system is deacti-
vated Using Thermatic
/Thermotronic*
!
AC -OFFoff:
The heater booster system and cooling
can be switched on or off using the
± button
! Therm atic ( =page 154)
! Ther motronic* ( =page 164)
The heater booster system is switched
off if the indicator lamp inthe ± but-
ton is lit. Heater booster
system* forvehicles
with a diese lengine 209en_d2.boo Seite
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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
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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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