coolant temperature MERCEDES-BENZ SL500 2003 R230 User Guide

254 Practical hintsWhat to do if …Problem
Possible cause
Suggested solution
D
The red coolant warning lamp
lights up when the engine is run-
ning.
There is insufficient coolant in the reservoir.
If this warning lamp lights up frequently,
there is a leak in the cooling system.
If the coolant level is correct, the electric ra-
diator fan may be broken.

Immediately add coolant to prevent
engine from overheating
(page 230).

Have the cooling system checked.

If the coolant temperature is below
257 °F (125 °C), you can continue
driving to the nearest authorized
Mercedes-Benz Center.

Avoid high engine loads (e.g. driving
uphill) and stop-and-go driving.
D
The red coolant warning lamp
lights up while driving and you
hear a warning sound.
The coolant temperature has exceeded
257 °F (125 °C).

Stop as soon as possible and allow
the engine and coolant to cool down.
Warning!
G
Driving when your engine is badly overheat-
ed can cause some fluids which may have
leaked into the engine compartment to
catch fire. You could be seriously burned.
Steam from an overheated engine can cause
serious burns and can occur just by opening
the engine hood. Stay away from the engine
if you see or hear steam coming from it.
Turn off the engine, get out of the vehicle
and do not stand near the vehicle until it
cools down.

273 Practical hints
What to do if …
Left display
Right display
Possible cause
Possible solution
Ï
Coolant
Stop, engine off!
The coolant is too hot.
The poly-V-belt could be broken.

Stop the vehicle.

Only start the engine again after the message
disappears. You could otherwise damage the
engine.

Stop immediately and check the poly-V-belt.
If it is broken, do not drive any further.
Notify an authorized Mercedes-Benz Cen-
ter.
If it is in order, drive immediately to the
nearest authorized Mercedes-Benz Cen-
ter.
Warning!
G
Driving when your engine is badly overheat-
ed can cause some fluids which may have
leaked into the engine compartment to
catch fire. You could be seriously burned.
Steam from an overheated engine can cause
serious burns and can occur just by opening
the engine hood. Stay away from the engine
if you see or hear steam coming from it.
Turn off the engine, get out of the vehicle
and do not stand near the vehicle until it
cools down. The engine should not be oper-
ated with the coolant temperature above
266°F (130°C). Doing so may cause serious
engine damage which is not covered by the
Mercedes-Benz Limited Warranty.

274 Practical hintsWhat to do if …Left display
Right display
Possible cause
Possible solution
Ï
Coolant
Visit workshop!
The cooling fan for the coolant is
malfunctioning.

Observe the coolant temperature gauge.

Have the fan replaced as soon as possible.
.
Low beam,
left
The left low beam lamp is malfunc-
tioning.

Visit an authorized Mercedes-Benz Center
as soon as possible.
Low beam,
right
The right low beam lamp is malfunc-
tioning.

Visit an authorized Mercedes-Benz Center
as soon as possible.
Display defective
Visit workshop!
The display for the lights is malfunc-
tioning.

Visit an authorized Mercedes-Benz Center
as soon as possible.
Turn signal R, L
Substitute
lamp on!
The left rear turn signal lamp is mal-
functioning. A backup bulb has been
brought into use.

Replace the bulb as soon as possible.
Turn signal R, R
Substitute
lamp on!
The right rear turn signal lamp is
malfunctioning. A backup bulb has
been brought into use.

Replace the bulb as soon as possible.

287 Practical hints
What to do if …
Left display
Right display
Possible cause
Possible solution
K
Visit workshop!
The retractable hardtop is mal-
functioning.

Have the retractable hardtop checked by an au-
thorized Mercedes-Benz Center.
Lock
hardtop
The roof is not properly locked.

Push or pull on the retractable hardtop switch
until the indicator lamp in the switch goes out
and the roof is completely open or closed
(page 159).
±
Display defective
Visit workshop!
Certain electronic systems are un-
able to relay information to the
control system. The following sys-
tems may have failed:

Coolant temperature gauge


Tachometer


Cruise control display

Have the electronic systems checked by an au-
thorized Mercedes-Benz Center (
page 256).
W
Washer fluid
Check level!
The fluid level has dropped to
about 1/3 of total reservoir ca-
pacity.

Add washer fluid (
page 233).

342 Technical dataFuels, coolants, lubricants, etc.
Fuels, coolants, lubricants, etc.CapacitiesVehicle components and their respective
lubricants must match. Therefore only use
brands tested and recommended by us. Please refer to the Factory Approved Ser-
vice Products pamphlet, or inquire at your
Mercedes-Benz Center.
Model
Capacity
Fuels, coolants, lubricants etc.
Engine with oil filter
SL 500
SL 55 AMG
7.9 US qt (7.5 l)
9.0 US qt (8.5 l)
Recommended engine oils
Automatic transmission
9.1 US qt (8.6 l)
MB Automatic Transmission Oil
1
Rear axle
1.5 US qt (1.4 l)
Hypoid gear oil SAE 85 W 90
Hydraulic system for active body control (ABC)
approx. 5.3 US qt (5.0 l)
MB Hydraulic Fluid
Power steering
approx. 1.1 US qt (1.0 l)
MB Power Steering Fluid (Pentosin
CHF 11S)
Front wheel hubs
approx. 3.0 oz (85 g) each
High temperature roller bearing grease
Brake system
1.1 US qt (1.05 l)
MB Brake Fluid (DOT 4+)
Cooling system
SL 500
SL 55 AMG
approx. 12.2 US qt (11.6 l)
approx. 13.7 US qt (13 l)
MB 325.0 Anticorrosion / Antifreeze
Fuel tank
including a reserve of
21.1 US gal (80.0 l)
2.6 US gal (10.0 l)
Premium unleaded gasoline:
Posted Octane 91 (Avg. of 96 RON /
86 MON)
Air conditioning system
R-134a refrigerant and special PAG lu-
bricant oil (never R-12)
1MB part no. 001 989 21 03 10

343 Technical data
Fuels, coolants, lubricants, etc.
Engine oils
Engine oils are specifically tested for their
suitability in our engines. Therefore, only
use engine oils recommended by
Mercedes-Benz. Information on recom-
mended brands is available in the Factory
Approved Service Products pamphlet, or at
your authorized Mercedes-Benz Center.
Please follow FSS recommendations for
scheduled oil changes. Failure to do so
could result in engine damage not covered
by the Mercedes-Benz Limited Warranty.
Engine oil additives
Do not blend oil additives with engine oil.
They may be harmful to the engine opera-
tion.
Damage or malfunctions resulting from
blending oil additives are not covered by
the Mercedes-Benz Limited Warranty.Air conditioner refrigerant
R-134a (HFC) refrigerant and special PAG
lubricating oil are used in the air condition-
er system.
Never use R-12 (CFC) or mineral-based lu-
bricating oil, otherwise damage to the
system will occur.
Brake fluid
During vehicle operation, the boiling point
of the brake fluid is continuously reduced
through the absorption of moisture from
the atmosphere. Under extremely strenu-
ous operating conditions, this moisture
content can lead to the formation of bub-
bles in the system, thus reducing the sys-
tem’s efficiency.
Therefore, the brake fluid must be re-
placed every two years, preferably in the
spring.
Only brake fluid approved by
Mercedes-Benz is recommended. Your au-
thorized Mercedes-Benz Center will pro-
vide you with additional information.
Model
Capacity
Fuels, coolants, lubricants etc.
Hydraulic system for retractable hardtop
0.42 US qt (0.4 l)
MB Hydraulic Fluid
Windshield washer and headlamp cleaning system
7.4 US qt (7 l)
MB Windshield Washer Concentrate
1
1Use MB Windshield Washer Concentrate “S” and water for temperatures above freezing or MB Windshield Washer Concentrate “S” and commercially available pre-
mixed windshield washer solvent / antifreeze for temperatures below freezing. Follow suggested mixing ratios (
page 346).

345 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 corrosion
protection and increase in the boil-over
protection. You should have it replaced ev-
ery 15 years or 150 000 miles (250 000
km), whichever comes first.
Coolant system design and coolant used
stipulate the replacement interval. The
above replacement interval is only applica-
ble if MB 325.0 anticorrosion/antifreeze
solution or other Mercedes-Benz approved
products of equal specification (see Facto-
ry Approved Service Products pamphlet)
are used to renew the coolant concentra-
tion 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%
anticorrosion/antifreeze (freeze protec-
tion to approx. - 49°F [-45°C]), the engine
temperature will increase due to the lower heat transfer capability of the solution.
Therefore, do not use more than this
amount of anticorrosion/antifreeze.
If the coolant level is low, water and
MB 325.0 Anticorrosion /Antifreeze
should be used to bring it up to the proper
level (have cooling system checked for
signs of leakage). Please make sure that
the mixture is in accordance with label in-
structions.
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.

347 Technical data
Fuels, coolants, lubricants, etc.
Windshield and headlamp washer system
Both the windshield and headlamp washer
systems are supplied from the windshield
washer fluid reservoir.
The windshield and headlamp washer fluid
reservoir has a capacity of approx.
7.4 US qt. (7 l).
Refill the reservoir with MB Windshield
Washer Concentrate and water (or con-
centrate and commercially available
premixed windshield washer
solvent / antifreeze, depending on am-
bient temperatures).Windshield and headlamp washer fluid
mixing ratio
For temperatures above freezing use
MB Windshield Washer Concentrate “S”
and water:


1 part “S” to 100 parts water
(40 ml “S” to 4 l water)
For temperatures below freezing use
MB Windshield Washer Concentrate “S”
and commercially available premixed
windshield washer solvent / antifreeze:


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

359 Index
Brakes 216
Warning lamp 253
Break-in period 214
Bulbs, replacing
Backup lamps 299
Brake lamps 296
Front lamps 295, 298
License plate lamps 300
Parking lamps 299
Rear fog lamp 299
Standing lamps 299
Tail lamp assemblies 299
Turn signal lamps, front 298
Turn signal lamps, rear 299
C
CAC (Customer Assistance Center) 351
CAN System 351
Capacities
Fuels, coolants, lubricants etc. 342
Catalytic converter 223
CD player
Operating 116
Center air vents 23
Center console
Lower part 24
Upper part 23Centigrade
Setting temperature units 122
Central locking
Automatic 91
Central locking switch 92
Switching on/off (control
system) 128
Unlocking from inside 92
Central locking switch 23
Central unlocking switch 23
Changing
Batteries (key) 293
Batteries (KEYLESS-GO* card) 294
Key setting 81
KEYLESS-GO* card setting 86
Vehicle level 185
Charging
Vehicle batteries 321
CHECK ENGINE malfunction indicator
lamp 21, 256
Checking
Batteries (KEYLESS-GO* card) 87
Coolant level 230
Oil level 226, 228
Tire inflate pressure 226
Vehicle lighting 226Vehicle lock status (KEYLESS-GO*
card) 87
Child safety
Airbags 54
Automatic child seat recognition 64
Infant and child restraint systems 52
Cigarette lighter 23, 197
Cleaning
Headlamps 146
Windshield 44
Clock 19
Closing
Glove box 190
Hood 228
Retractable hardtop (electronic
key) 164
Retractable hardtop (switch) 161
Side windows 158
Side windows (KEYLESS-GO*) 88
Sunshade* 167
Trunk lid 83, 91
Cockpit 352
Collapsible tire 352
COMAND 23
COMAND* 352
COMAND*, radio and telephone 222

360 IndexCombination switch 19, 43, 104
Consumer information 348
Control system 110, 113, 352
AUDIO menu 115
Convenience submenu 129
Distronic* menu 117
Functions 111
Instrument cluster submenu 122
Lighting submenu 124
Malfunction memory menu 118
Menus 111
Multifunction display 110
Multifunction steering wheel 111
NAVI menu 117
Standard display menu 110, 115
Submenus 114
TEL* menu 133
Trip computer menu 131
Vehicle submenu 127
Coolant 345
Adding 231
Anticorrosion/antifreeze
quantity 346
Checking level 230
Messages in display 272, 273, 274
Temperature 224Temperature gauge 108
Temperature warning lamp 21
Warning lamp 254
Cooling see Air conditioner
Courtesy lighting 107
Cruise control 168, 262, 352
Canceling 169
Driving downhill 169
Driving uphill 169
Fine adjustment 170
Setting 170
Setting a higher speed 170
Setting a lower speed 170
Setting speed 169, 170
Cruise control lever 19, 168
For cruise control 168
For Distronic* 175
Cup holder 23, 190
Opening 190
Customer Assistance Center 351
D
Daytime running lamp mode 103
Setting 124
Deactivating
Air conditioning (cooling) 155
Air recirculation mode 152Alarm 76
Anti-theft alarm system 76
Automatic climate control 154
Central locking (control system) 128
Cruise control 169
Distance warning function* 180
Distronic* 178
Engine with KEYLESS-GO* 49
Engine with the key 48
ESP 71
Exterior lamps 102
Hazard warning flasher 105
Headlamps 48, 102
Immobilizer 75
Interior light delayed switch-off 127
Parktronic* 189
Rear window defroster 153
Residual heat 154
Seat heater 97, 98
Seat ventilation* 96
Steering wheel gearshift control
(SL 55 AMG Kompressor) 143
Tow-away alarm 77
Deep water see Standing water
Defrosting 151