engine coolant MERCEDES-BENZ SLK ROADSTER 2008 Owners Manual

Exterior view
19Function Pag
e 1 Boot
Opening and closing 58
2 Rear window heatin
g 130
3 Fuel filler fla
p 148
Fuel requirements 149
4 Doors
Opening and closing 56
Opening/closing in an
emergency
210
5 Exterior mirrors
66
6 Roof
Opening and closin
g 132
Draught stop 135
Boot separator 134
7 Cleaning the windows
16
7 8 Windscreen wipers
78 Function Page
9 Opening the bonnet
150
Engine oil 151
Coolant 154
Vehicle battery 230
a Front lights
215
b Towing
234
c Headlamp cleaning system
76
d Wheels and tyres
155
Tyre pressure loss warning
system
158
Flat tyre 218
Vehicle tool kit 172
Spare wheel* 172,
225 e Rear lights
21
6 f Towing
234 At a glance
* optional
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On-board computer
95Function
1 Standard display
menu
( Y page 95)
R Total distance recorder
(Y page 95)
R Tyre pressure loss warning sys-
tem* (Y page 158 )
R Coolant temperature (Y page 96)
R Digital speedometer or outside tem-
perature (Y page 96)
R ASSYST PLUS service displa y
( Y page 165 )
R Engine oil level* (Y page 151 ) 2
AMG
* menu (Y page 96) 3
Audio*/DVD*
menu(Y page 98)
R Radio station (Y page 99)
R Audio drive or media**
(Y page 99)
R DVD video* (Y page 99) Function
4
Navigation
* menu (NAV)
( Y page 100 ) 5
Message memory
menu10
(fault and
warning messages) (Y page 100 ) 6 Settings
menu(Y page 101 )
R Resetting to factory setting s
( Y page 101 )
R Selecting a submenu (Y page 101 ) 7 Trip computer
menu(Y page 107 )
R Consumption statistics
(Y page 107 )
R Range (Y page 107 ) 8
Telephon
e* menu (Y page 108 ) This is what the displays look like when you
scroll through the menus.
The generic terms in the table overview are
intended to help you navigate through the
menus. The terms themselves are not alway
s
displayed in the multi-function display. Depending on the audio system fitted, the
Audio*,
Navigation* and Telephone*
menus are slightly different. The examples
given in this Owner's Manual apply to vehicles
equipped with COMAND APS*. Standard display menu
i Menu overview: see (Y page 94).
Use the buttons on the multi-function steer -
ing wheel.
X Press the èor· button to select the
standard display. Standard display
1
Total distance recorder
2 Trip meter
10 This menu is only visible if there is a display message available. Controls
* optional
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On-board computer
96
You can select the following functions in the
Basic display
menu by pressing the jor
k button:
R tyre pressure loss warning sys-
tem* (Y page 158 )
R coolant temperature
R digital speedometer or outside tempera-
ture
R ASSYST PLUS service displa y
( Y page 165 )
R engine oil level* (Y page 151 )
Displaying the coolant temperatur eX
Press the jork button to select the
coolant temperature. Under normal driving conditions, with the cor-
rect anti-corrosion and antifreeze additive concentration, the reading may rise to
120 †.
At high outside temperatures and when driv-
ing uphill, the coolant temperature may rise
to the end of the scale.
Displaying the digital speedometer or
outside temperatur
e If you have selected the digital speedometer
for the Status line
(Y page 103), you can
switch the display to the outside temperature
here 11
.
X Press the jork button to select the
digital speedometer or the outside temper -
ature. Example illustration showing the digital speedom
-
eter displayed AMG* menu
These functions are only available on AMG
vehicles.
i Menu overview: see (Y page 94).
Use the buttons on the multi-function steer -
ing wheel.
X Press the èor· button to select the
AMG menu. 1
Gear indicator
2 Upshift instruction
3 Engine oil temperatur e
In the manual gearshift program, the menu is
displayed in red when the engine reaches the
overrevving range. You will also see shift up
instruction 2. The shift upinstruction is the
only thing shown in the multi-function display
until you shift gear.
11 Vehicles for the United Kingdom: the outside temperature is always displayed. Control
s
* optional
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Engine compartment
154 Coolan
t G
Risk of injury
The cooling system is pressurised. There-
fore, only unscrew the cap once the engine
has cooled down. The coolant temperature
gauge must display less than 70°C. Yo u
could otherwise be scalded by escaping hot
coolant.
Coolant consists of water and antifreeze/cor-
rosion inhibitor. Only check the coolant level
when the vehicle is on a level surface and the
engine has cooled down. Checking the coolant leve
l The expansion tank is located in the engine
compartment on the right-hand side of the
vehicle when viewed in the direction of travel.
1
Expansion tank
2 Cove r
3 Marker bar
X Slowly turn cap 2by half a turn anti-clock -
wise to allow excess pressure to escape.
X Turn cap 2further anti-clockwise and
remove it.
There is sufficient coolant in expansion
tank 1if the coolant is level with marker
bar 3in the filler neck when cold or
approximately 1.5 cm higher when hot .X
Top up the coolant if necessary.
X Replace cap 2and tighten all the way to
the stop.
You will find further information about coolan t
in the "Technical data" section
( Y page 259). Windscreen washer system/head-
lamp cleaning system
*
The washer fluid reservoir is located in the
engine compartment on the right when
viewed in the direction of travel. The head-
lamp cleaning system* is also supplied from
the washer fluid reservoir. 1
Cove r Operation
* optional
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Display
messages 18
0 Display messages Possible cause/consequence Possible solution
D The cooling fan for the coolant is faulty. X
If the coolant temperature is less than 120†,
you can continue driving to the nearest quali-
fied specialist workshop.
X In doing so, avoid heavy loads on the engine
(e.g. driving in mountainous terrain) and stop-
and-go driving. # The battery is not being charged. Possible
causes are a torn poly-V-belt or a faulty
alternator. X
Stop immediately and safely when traffic con-
ditions allow and check the poly-V-belt.
X If it has torn: do not drive on. Contact th e
nearest qualified specialist workshop .
X If it is not damaged :have the vehicle checked
immediately at a qualified specialist workshop. 2 Brake wear The brake pads/linings have reached
their wear limit. X
Have the brake pads/linings replaced as soon
as possible at a qualified specialist workshop .3 Check brake fluid
level
G
Risk of accident
There is insufficient brake fluid in the
brake fluid reservoir. X
Pull over as soon as it is safe to do so.
X Do not continue driving under any circumstan-
ces .
X Consult the nearest qualified specialist work -
shop.
X Do not top up the brake fluid. This will not rec -
tify the malfunction. Practical advice
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Display
messages 18
1 Display messages Possible cause/consequence Possible solution
! Release parking
brake You are driving with the handbrake
applied. X
Release the handbrake .M Close boot separa-
tor The boot separator is open. X
Close the boot separator (Y page 134). D Coolant Stop,
switch engine off The coolant is too hot. X
Stop the vehicle. Pay attention to the traffic
conditions as you do so.
X Switch off the engine.
X Wait until the message disappears before
restarting the engine. There is otherwise a risk
of engine damage.
X Observe the coolant temperature gauge
(Y page 96).
X If the temperature increases again, visit a quali-
fied specialist workshop immediately. Practical advice
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Display
messages 18
2 Display messages Possible cause/consequence Possible solution
D Coolant Stop,
switch engine off The poly-V-belt may have torn. X
Stop the vehicle. Pay attention to the traffic
conditions as you do so.
X Switch off the engine.
X Check the poly-V-belt .
X If it has torn: do not drive on. Contact th e
nearest qualified specialist workshop .
X If it is not damaged :do not start the engin e
again until the message disappears. There is
otherwise a risk of engine damage. B Top up coolant See
Owner's Manual The coolant level is too low. X
Top up the coolant, observing the warning
notes before doing so (Y page 154).
X Have the coolant system checked at a qualified
specialist workshop if the coolant needs top-
ping up more often than usual .. Dipped beam, left
or
Dipped beam, right The right-hand or left-hand dipped-beam
headlamp is faulty. X
Halogen headlamp: replace the bulb
( Y page 213).
X Bi-xenon headlamp* :visit a qualified special-
ist workshop. Practical advice
* optional
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Display
messages 18
7 Display messages Possible cause/consequence Possible solution
N Engine oil level
Reduce oil level Vehicles without an oil dipstick: you have
added too much engine oil. There is a risk
of damaging the engine or catalytic con-
verter. X
Siphon off excess engine oil until it is at the
specified level. Observe the legal require-
ments. N Cannot measure
engine oil level Vehicles without an oil dipstick: the meas-
uring system is faulty. X
Visit a qualified specialist workshop. ± Display malfunc-
tion Drive to work-
shop One or more electronic systems are
unable to deliver information to the on-
board computer. The following systems
may have failed:
R
Coolant temperature gauge
R Rev counter
R Cruise control or Speedtronic display X
Visit a qualified specialist workshop. I Remove key You have left the key in the ignition lock. X
Remove the key. I Please replace key The key no longer functions. X
Visit a qualified specialist workshop. 4 Reserve fuel The fuel level has fallen below the reserve
range. X
Refuel at the nearest filling station .t Enter PIN You have not yet logged on to your mobile
phone*. X
Enter the PIN for the SIM card. Practical advice
* optional
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Troubleshooting
20
2 Problem Possible cause/consequence Suggested solutions
A coolant temperature of over
120 °C is displayed. The coolant level is too low. The
coolant is too hot and the engine
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 154). 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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Service products and capacities
255Service products and capacities
Notes on service products and capaci-
ties
Service products are:
R fuel s
R lubricants (e.g. engine oil, transmission oil)
R coolant
R brake fluid
R windscreen washer fluid
Mercedes-Benz recommends that you onl y
use those products which have been tested
and specially approved by Mercedes-Benz for
your vehicle and are listed in the Mercedes-
Benz Owner's Manual in the relevant chapter
since :
R parts and service products are matched
R damage caused by the use of non-approved
service products is not covered by the war-
rant y
You can recognise service products approved
by Mercedes-Benz by the following inscrip-
tion on the containers:
R MB-Freigabe (e.g. MB-Freigabe 229.51)
R MB Approval (e.g. MB Approval 229.51) Other designations or recommendations that
relate to a level of quality or a specification in
accordance with an MB Approval have not
necessarily been approved by Mercedes-
Benz.
You can obtain further information from any
Mercedes-Benz Service Centre. G
Risk of injury
When handling, storing and disposing of
any service products, please observe the
relevant regulations, as you could other-
wise endanger yourself and others.
Keep service products away from children.
To protect your health, do not allow service
products to come into contact with your
eyes or open wounds. See a doctor imme-
diately if any service product is swallowed. H
Environmental not
e
Dispose of service products in an environ-
mentally-responsible manner. Fuel
s G
Risk of explosion
Fuel is highly flammable. Fire, naked flames
and smoking are therefore prohibited when
handling fuels.
Before refuelling, always turn off the
engine. G
Risk of injury
Do not allow fuel to come into contact with
skin or clothing .
Allowing fuels to come into direct contact
with your skin or inhaling fuel vapours is
damaging to your health.
Tank capacity Total capacity 70
l Of which reserve
fuel Approximately 9
l SLK 55 AMG Approximately 10
l !
Do not use diesel to refuel vehicles with a
petrol engine. Never mix petrol with diesel.
Even small amounts of diesel result in dam- Technical data
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