2004 MERCEDES-BENZ SLK CLASS engine coolant

281 Technical data
Fuels, coolants, lubricants etc.
Damage or malfunctions resulting from
poor fuel quality or from blending specific
fuel additives are not covered by the
Mercedes-Benz Limited Warranty.Coolants
The engine coolant is a mixture of water
and anticorrosion / antifreeze, which pro-
vides:

Corrosion protection


Freeze protection


Boiling protection (by increasing the
boiling point)
The cooling system was filled at the factory
with a coolant providing freeze protection
to approximately -22°F (-30°C) and corro-
sion protection.
If the antifreeze mixture is effective to
-22°F (-30°C), the boiling point of the cool-
ant in the pressurized cooling system is
reached at approximately 266°F (130°C).The coolant solution must be used
year-round to provide the necessary corro-
sion protection and increase boil over-pro-
tection. Refer to Service Booklet for
replacement interval.
Coolant system design and coolant used
stipulate the replacement interval. The re-
placement interval published in the Ser-
vice Booklet is only applicable if MB 325.0
anticorrosion/antifreeze solution or other
Mercedes-Benz approved products of
equal specification (see Factory Approved
Service Products pamphlet) are used to re-
new the coolant concentration or bring it
back up to the proper level.
To provide important corrosion protection,
the solution must be at least 45% anticor-
rosion/antifreeze (equivalent to freeze
protection to approx. -22°F [-30°C]). If you
use a solution that is more than 55% anti-
corrosion/antifreeze (freeze protection to
approx. -49°F [-45°C]), the engine temper-
ature will increase due to the lower heat transfer capability of the solution. There-
fore, do not use more than this amount of
anticorrosion/antifreeze.
If the coolant level is low, water and MB
Anticorrosion /Antifreeze should be used
to bring it up to the proper level (have cool-
ing system checked for signs of leakage).
Please make sure the mixture is in accor-
dance with label instructions.
The water in the cooling system must meet
minimum requirements, which are usually
satisfied by normal drinking water. If you
are not sure about the water quality, con-
sult your authorized Mercedes-Benz
Center.

282 Technical dataFuels, coolants, lubricants etc.Anticorrosion/antifreeze
Your vehicle contains a number of alumi-
num parts. The use of aluminum compo-
nents in motor vehicle engines
necessitates that anticorrosion/antifreeze
coolant used in such engines be specifical-
ly formulated to protect the aluminum parts. (Failure to use such anticorro-
sion/antifreeze coolant will result in a
significantly shortened service life.)
Therefore, the following product is strongly
recommended for use in your vehicle:
Mercedes-Benz 325.0 Anticorrosion/Anti-
freeze Agent.Before the start of the winter season (or
once a year in hot southern regions), you
should have the anticorrosion/antifreeze
concentration checked. The coolant is also
regularly checked each time you bring your
vehicle to your authorized Mercedes-Benz
Center for service.
Anticorrosion/antifreeze quantityModel
Approx. freeze protection–35°F (–37°C)
–49°F (–45°C)
SLK 230 Kompressor
4.9 US qt (4.7 l)
5.4 US qt (5.1 l)
SLK 320
5.9 US qt (5.6 l)
6.5 US qt (6.1 l)
SLK 32 AMG
7.7 US qt (7.3 l)
8.5 US qt (8.0 l)

283 Technical data
Fuels, coolants, lubricants etc.
Windshield washer system and head-lamp washer system*
Both the windshield and headlamp*
washer systems are supplied from the
windshield washer fluid reservoir.
The washer fluid reservoir has a capacity of
approximately 7.4 US qt (7.0 l).
Refill the reservoir with MB Windshield
Washer Concentrate "S" and water (or
concentrate and commercially avail-
able premixed windshield washer
solvent / antifreeze, depending on am-
bient temperatures).Windshield and headlamp* washer
fluid mixing ratio
For temperatures above freezing point, use
MB Windshield Washer Concentrate “S”
and water:


1 part “S” to100 parts water
[40ml“S” to 1gallon (4l) water]
For temperatures below freezing point, use
MB Windshield Washer Concentrate “S”
and commercially available premixed
windshield washer solvent / antifreeze:


1part“S” to 100parts solvent
[40 ml “S” to 1 gallon (4 liters) solvent].
Warning!
G
Washer solvent/antifreeze is highly flamma-
ble. Do not spill washer solvent/antifreeze
on hot engine parts because it may ignite
and burn. You can be seriously burned.

289 Technical terms
Lock button
Button on the door which indicates
whether the door is locked or un-
locked. Pushing the lock button down
on an individual door from inside will
lock that door.
MON
(M
otor O
ctane N
umber)
The Motor Octane Number for gasoline
as determined by a standardized
method. It is an indication of a gaso-
line's ability to resist undesired detona-
tion (knocking). The average of both
the MON (Motor Octane Number) and
->RON (Research Octane Number) is
posted at the pump, also known as
ANTI-KNOCK INDEX.Overspeed range
Engine speeds within the red marking
of the tachometer dial. Avoid this
engine speed range, as it may result in
serious engine damage that is not
covered by the Mercedes-Benz Limited
Warranty.
Poly-V-belt drive
Drives engine-components (alternator,
AC compressor, etc.) from the engine.
Power train
Collective term designating all compo-
nents used to generate and transmit
motive power to the drive axles, includ-
ing


engine


clutch/torque converter


transmission


drive shaft


axle shafts/axlesProgram mode selector switch
Used to switch the automatic transmis-
sion between standard operation S and
winter operation W.
Remote Vehicle Diagnostics
Transmission of vehicle data and cur-
rent location to the Mercedes-Benz
Customer Assistance Center for sub-
scribers to Tele Aid service.
REST
(Residual engine heat utilization)
Feature that uses the engine heat
stored in the coolant to heat the vehi-
cle interior for a short time after the en-
gine has been turned off.
Restraint systems
Seat belts, belt tensioners, airbags and
child restraint systems. As indepen-
dent systems, their protective func-
tions complement one another.

293 Index
A
ABS 22, 66, 287
Malfunction indicator lamp 201
Warning lamp 201
Accelerator position, automatic
transmission 98
Accident
In case of 46
Activating
Air conditioning 107
Air recirculation mode 106
Anti-theft alarm system 71
Climate control 103
ESP 70
Exterior headlamps 43
Hazard warning flasher 86
Headlamps 43
High beams 85
Ignition 29
Immobilizer 71
Rear window defroster 101
Residual heat 107
Seat heater* 82
Tow-away alarm 72
Windshield wipers 44Activating automatic central locking 80
Adding
Coolant 181
Engine oil 179
Additional turn signals 226
Adjusting 30
Air distribution 105
Air volume 105
Backrest tilt 32, 33
Exterior rear view mirror 35
Head restraint height 32
Inside rear view mirror 35
Instrument cluster illumination 89
Manual seat 31
Mirrors 35
Seat cushion tilt 33
Seat fore and aft adjustment 31, 33
Seat height 31, 33
Seats 30
Telescoping steering column* 34
Adjusting headlamp aim
Horizontal headlamp aim 232
Vertical headlamp aim 231
Air conditioning 106Activating 107
Deactivating 107
Air conditioning refrigerant 279
Air distribution
Adjusting 105
Air pressure see Tire inflation
pressure 186
Air recirculation mode 106
Activating 106
Deactivating 106
Air volume
Adjusting 105
AIRBAG OFF indicator lamp 211
Airbags 53
BabySmart
TM airbag deactivation
system 287
BabySmartTM deactivation
system 62
Children 54
Front 56
Passenger 56
Safety guidelines 55
Side impact 57

296 IndexCentral locking
From inside 80
Unlocking from inside 80
Certification label 266
Changing CDs
CD mode 121
Charging
Vehicle battery 252
CHECK ENGINE malfunction indicator
lamp 205
Checking
Coolant level 173, 180
Oil level 172, 175
Tire inflation pressure 173
Vehicle lighting 173
Child safety 60
Airbags 54
Infant and child restraint systems 57,
60
Cigarette lighter 143
Cleaning
Cloth upholstery 197Cup holder 196
Gear selector lever 196
Hard plastic trim items 196
Headliner 197
Instrument cluster 196
Leather upholstery 197
Light alloy wheels 196
Plastic and rubber parts 197
Rear window 195
Seat belts 197
Steering wheel 196
Windows 195
Windshield 45
Wiper blades 195
Cleaning*
Headlamps 99
Climate control 102
Adjusting air distribution 105
Adjusting air volume 105
Air conditioning 106
Air recirculation mode 106
Deactivating the climate control
system 110
Defogging windshield 110
Defrosting 109Reactivating the climate control
system 110
Rear window defroster 101
Residual heat utilization 107
Residual ventilation 107
Setting the temperature 104
Clock 21
Setting 91
Closing
Glove box 139
Hood 175
Retractable hardtop 221
Side windows 128
Trunk lid 78
Windows 128
Closing hardtop
In an emergency 221
Cloth upholstery
Cleaning 197
Cockpit 18, 287
Coin holder 142
Collapsible tire 287

308 Index
Brake fluid 279
Coolant 277
Coolants 281
Electrical system 274
Engine 268
Engine oil 279
Engine oil additives 279
Fuel requirements 280
Fuels 277
Gasoline additives 280
Lubricants 277
Main dimensions 275
Premium unleaded gasoline 280
Rims and tires 269
Weights 276
Windshield and headlamp washer*
system 278, 283
Tele Aid 144
Emergency calls 146
Information 149
Initiating an emergency call
manually 147
Remote door unlock 151Roadside assistance 148
Stolen vehicle tracking services 152
System self-check 145
Tele Aid System 145
Upgrade signals 150
Tele Aid System 290
Telephone* 143
Hands-free microphone 25
Operation 125
Telescoping steering column*
Adjusting 34
Temperature
Grades of tires 285
Setting interior temperature 104
Tires 187
Tightening torque 290
Tightening torque (Wheel bolts) 248
Tire inflation pressure 242
Checking 173, 186Tire speed rating 166, 291
Tire traction 165
TIREFIT 290
TIREFIT kit
Sealing tires with TIREFIT 235, 240
TIREFIT kit 1 235
TIREFIT kit 2 240
TIREFIT-Kit
Adding TIREFIT 237
Inflating the tire 238
Preparing TIREFIT 236, 241
Tires 185, 269
Collapsible 287
Consumer information 284
Direction of rotation 186
Driving instructions 164
Retreads 185
Rims and tires 269
Service life 186
Temperature 187