2008 MERCEDES-BENZ SL550 coolant level

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Page 464 of 489

MERCEDES-BENZ SL550 2008 R230 Owners Manual 463 Technical data
Fuels, coolants, lubricants, etc.
Coolants
The engine coolant is a mixture of water
and anticorrosion/antifreeze, which
provides:
corrosion protection
freeze protection
boiling

463 Technical data
Fuels, coolants, lubricants, etc.
Coolants
The engine coolant is a mixture of water
and anticorrosion/antifreeze, which
provides:
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 -35°F (-37°C) and corro-
sion protection.If the antifreeze mixture is effective to
-35°F (-37°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. Refer to Maintenance Booklet
for replacement interval.
Coolant system design and coolant used
stipulate the replacement interval. The
replacement interval published in the
Maintenance Booklet is only applicable if
MB 325.0 Anticorrosion/Antifreeze solu-
tion or other Mercedes-Benz approved
products of equal specification are used to
renew the coolant concentration or bring it
back up to the proper level.
For information on other Mercedes-Benz
approved products of equal specification,
refer to the Factory Approved Service
Products pamphlet (USA only) or contact
an authorized Mercedes-Benz Center.To provide important corrosion protection,
the solution must be at least
50% anticorrosion/antifreeze (equivalent
to freeze protection to approximately
-35°F [-37°C]). If you use a solution that is
more than 55% anticorrosion/antifreeze
(freeze protection to approximately
-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 the
mixture is in accordance with label instruc-
tions.
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-
tact an authorized Mercedes-Benz Center.
! Add premixed coolant solution only. Adding
water and MB 325.0 Anticorrosion/Antifreeze
separately from each other, could cause engine
damage not covered by the Mercedes-Benz
Limited Warranty.

Page 471 of 489

MERCEDES-BENZ SL550 2008 R230 Owners Manual 470 Index
Control system submenus 147
Convenience 166
Instrument cluster 160
Lighting 163
Time 161
Vehicle 166
Convenience feature 206
Coolant 463
Anticorrosion/antifreeze mixing ratio
and quantity 4

Page 473 of 489

MERCEDES-BENZ SL550 2008 R230 Owners Manual 472 Index
Emergency operations
Glove box, Unlocking 404
Load assist, Lowering 406
Locking/unlocking the
vehicle 403, 405
Remote door unlock, Tele Aid 256
Trunk lid, Releasing from the
inside 121
Trun

Page 478 of 489

MERCEDES-BENZ SL550 2008 R230 Owners Manual 477 Index
Mirrors 49, 185
Adjusting interior rear view mirror 49
Exterior rear view mirrors 49
Misfiring 60
MOE tires* see MOExtended system*
MOExtended system* 312, 425
MOExtended tires* 449
MON 280

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