2005 MERCEDES-BENZ G55AMG coolant temperature

378 Technical dataFuels, coolants, lubricants, etc.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 -35°F (-37°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 boil-over protec-
tion. Refer to Maintenance Booklet for
replacement interval.Coolant system design and coolant used
determine 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 (see
Factory Approved Service Products
pamphlet) are used to renew 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%
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
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 an authorized Mercedes-Benz Light
Truck Center.

380 Technical dataFuels, coolants, lubricants, etc.Windshield/rear window washer sys-tem and headlamp cleaning system
The windshield washer reservoir is located
in the engine compartment on the front
passenger side. It holds approximately
5.3 US qt (5.0 l). The headlamp cleaning
system is also supplied from the wind-
shield washer reservoir. 
Refill the reservoir with MB Windshield
Washer Concentrate “S” to and water
(or concentrate and commercially
available premixed windshield washer
solvent / antifreeze, depending on am-
bient temperatures) (
page 380).Washer fluid mixing ratio
For temperatures above freezing point use
MB Windshield Washer Concentrate “S”
and water:


1 part “S” to 100 parts water
(1.34 fl oz [40 ml] “S” to 1 gallon [4.0 l]
water)
For temperatures below freezing point, use
MB Windshield Washer Concentrate “S”
and commercially available premixed
windshield washer solvent / antifreeze:


1 part “S” to 100 parts solvent
(1.34 fl oz [40 ml] “S” to 1 gallon [4.0 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
and burn. You could be seriously burned.

390 IndexCentigrade
Setting temperature units 135
Central locking
From inside 99
Switch 99
Switching on/off (control
system) 141
Unlocking from inside 99
Certification label 366
Changing
Key setting 142
Charging
Vehicle battery 351
Checking
Coolant level 237, 244
Oil level 237, 239
Checklist
Off-road driving 225
Child safety 72
Infant and child restraint systems 62,
68, 72
LATCH child seat anchors 77
Child safety switch see Blocking of rear
door window operation
Cigarette lighter 195Cleaning
Cup holders 284
Gear selector lever 284
Hard plastic trim items 284
Headlamps 162
Headliner 284
Illuminated door sill panels 285
Instrument cluster 284
Leather upholstery 285
Light alloy wheels 284
MB Tex upholstery 285
Plastic and rubber parts 285
Rear Parking Assist sensors* 283
Seat belts 284
Steering wheel 284
Windows 283
Windshield 54
Wiper blades 283
Wood trims 285
Cleaning tires 250
Climate control 164
Adjusting 167
Defogging windshield 167
Defrosting 168
Rear window defroster 163
Setting the temperature 166Clock 25
Closing
Glove box 190
Hood 239
Side windows 171
Tailgate 98
Tilt/sliding sunroof 173, 328
Tilt/sliding sunroof with
SmartKey 175
Windows 171
Windows with SmartKey 172
Closing tilt/sliding sunroof
In an emergency 328
Cockpit 22, 381
Cockpit management and data system
(COMAND) 382
Cold tire inflation pressure 271
COMAND 382
COMAND see separate operating
instructions
Combination switch 23, 114
High beam flasher 52, 114
High beam headlamps 114
Turn signals 52
Windshield wipers 53

391 Index
Control and operation of radio
transmitters 231
Control system 123, 382
AUDIO menu 128
Convenience submenu 142
Display digital speedometer 128
Functions 125, 127
Instrument cluster submenu 135
Lighting submenu 137
Menus 126, 127
Multifunction display 123
Multifunction steering wheel 124
NAVI menu 130
Satellite radio (USA only) 129
Selecting radio system 129
Settings menu 132
Standard display menu 128
Submenus 125, 127
TEL menu 145
Trip computer menu 144
Vehicle status message memory
menu 131
Vehicle submenu 141
Convenience feature 172Convenience submenu 142
Activating easy-entry/exit
feature 142
Setting key-dependency 143
Setting parking position for exterior
rear view mirror 143
Coolant 244, 378
Adding 245
Anticorrosion/antifreeze
quantity 378
Capacities 374
Checking level 244
Messages in display 305, 306, 307
Temperature 234
Temperature display 120
Warning lamp 305
Coolant level
Checking 237, 244
Crossing obstacles 228
Cruise control 176, 382
Canceling 177
Driving downhill 177
Driving uphill 177
Fine adjustment 178Messages in display 308
Setting current speed 177
Setting speed 178
Cruise control lever 176
Cup holder
In rear passenger footwell 193
Cup holders 192
Cleaning 284
In front passenger footwell 192
In glove box lid 192
Next to the armrest 192
Curb weight 271
Customer Assistance Center (CAC) 381

397 Index
Instrument cluster 24, 120, 383
Cleaning 284
Coolant temperature display 120
Illumination 120
Lamps in 294
Multifunction display 123
Outside temperature indicator 122
Selecting language 136
Instrument lighting 120
Instruments and controls see Cockpit
Interior lighting 116
Delayed shut-off 140
Manual operation 117
Interior rear view mirror
Adjusting 41
Intermittent wiping 54
Interval wiping 55
Switching off 55
Switching on 55J
Jack 322
Jump starting 354K
Key, mechanical 325
Key, SmartKey
Battery check lamp 94
Checking the batteries 95
Factory setting 94
Global locking 94
Global unlocking 94
Loss of 96
Positions in starter switch 35
Remote controls 92
Restoring to factory setting 95
Selective setting 94
Starting the engine 49
Unlocking with 34
Key-dependency memory
Settings 143
Keys 92
Kickdown 153, 383
Kilometers/miles in speedometer 136
Kilopascal 272
Km/h or mph in speedometer 136