1997 MERCEDES-BENZ ML430 coolant temperature

249 Practical hints
What to do if …
Problem
Possible cause
Suggested solution
/
The yellow coolant warning lamp
comes on when the engine is
running.
The coolant is to hot.
The coolant level is too low.

Stop as soon as possible and allow
the engine and coolant to cool down.

Check the coolant level and add
coolant if necessary (
page 222).
If the warning lamp comes on frequently,
there is a leak in the cooling system.

Have the cooling system checked by
an authorized Mercedes-Benz Light
Truck Center.
The coolant temperature gauge is above
248 °F (120 °C).
The coolant level is too low.

Stop as soon as possible and allow
the engine and coolant to cool down.

Add coolant to prevent engine from
overheating (
page 222).
If the coolant level is correct, the electrical
radiator fan may be broken.

If the coolant temperature is below
the red zone, drive on to the nearest
authorized Mercedes-Benz Light
Truck Center.
Avoid high engine loads (e.g. driving
uphill) and stop-and-go driving.

300 Technical dataFuels, coolants, lubricants etc.
Fuels, coolants, lubricants etc.Capacities
Vehicle components and their respective
lubricants must match.Therefore use only brands tested and
approved by Mercedes-Benz.Please refer to the Factory Approved
Service Products pamphlet, or inquire at
your Mercedes-Benz Light Truck Center.
Model
Capacity
Fuels, coolants, lubricants etc.
Engine with oil filter
ML 350, ML 500
8.5 US qt (8.0 l)
Approved engine oils
Automatic transmis-
sion
9.0 US qt (8.5 l)
MB Automatic Transmission Oil
Transfer case
1.6 US qt (1.5 l)
(Dexron 3 or Dexron 2E)
Rear axle
1.3 US qt (1.25 l)
(Hypoid gear oil SAE 90, 85 W 90)
Front axle
1.2 US qt (1.1 l)
(Hypoid gear oil SAE 90)
Power steering
approx. 0.65 US qt (0.6 l)
MB Power Steering Fluid
Front wheel hubs
approx. 1.5oz (43g) each
High temperature roller bearing grease

301 Technical data
Fuels, coolants, lubricants etc.
Model
Capacity
Fuels, coolants, lubricants etc.
Cooling system
approx. 12.7 US qt (12.0 l)
MB Anticorrosion / Antifreeze
Fuel tank
ML 350, ML 500
22.0 US gal (83.0 l)
Premium unleaded gasoline:
Posted Octane 91 (Avg. of 96 RON / 86 MON
including a reserve of
approx. 3.2 US gal (12.0 l)
Air conditioning system
R-134a refrigerant and special PAG lubricant
oil (never R-12)
Windshield washer and
headlamp cleaning
system*
8.0 US qt (7.6 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 307).

304 Technical dataFuels, 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 -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 in boil-over pro-
tection. Refer to Service Booklet for
replacement interval.
To provide important corrosion protection,
the solution must be at least 45%
anticorrosion / antifreeze (equivalent to
freeze protection to approx. - 22°F
[-30°C]). If you use a solution that is more
than 55% anticorrosion / antifreeze (freeze
protection to approx. - 49°F [-45°C]), the
engine temperature will increase due to
the lower heat transfer capability of the so-
lution. 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 your authorized Mercedes-Benz Light
Truck Center.

307 Technical data
Fuels, coolants, lubricants etc.
Windshield washer system and headlamp cleaning system*
Both the windshield washer and headlamp
cleaning system* are supplied from the
windshield washer fluid reservoir.
The windshield and headlamp washer fluid
reservoir has a capacity of approx.
8.0 US qt (7.6 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, use
MB Windshield Washer Concentrate “S”
and water:

1 part “S” to 100 parts water
[40 ml “S” to 1 gallon (4 liters) water].
For temperatures below freezing, 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 flam-
mable. Do not spill washer
solvent / antifreeze on hot engine parts, be-
cause it may ignite and burn. You could be
seriously burned.

322 IndexCoolant 222, 304
Adding 223
Anticorrosion/antifreeze
quantity 304
Checking level 222
Indicator lamp 249
Temperature 213
Temperature gauge 117
Coolant level
Checking 215, 222
Crossing obstacles 204
Cruise control 150, 311
Canceling 151
Driving downhill 151
Driving uphill 151
Fine adjustment 152
LOW RANGE mode 152
Saving current speed 151
Setting speeds 152
Cruise control lever 150Cup holder 166
Cleaning 238
In front seat armrest 167
In instrument panel 166
In rear centerconsole 167
Customer Assistance Center (CAC) 311
D
Daytime running lamp mode 109
Deactivating
Air conditioning (cooling) 139
Air recirculation mode 139
Alarm 84
Anti-theft alarm system 84
Automatic climate control 135, 137
Cruise control 151
Defrost 138
Engine 54
ESP 81
Front fog lamps, rear fog lamp 111
Hazard warning flasher 112
Headlamps 54
Immobilizer 83
Rear passenger compartment ventila-
tion and climate control 141
Rear window defroster 133Residual heat 140
Seat heater* 98
Tow-away alarm 85
Tow-away alarm (vehicles with trip
computer*) 85
Tow-away alarm (vehicles without trip
computer*) 86
Deactivating automatic central
locking 93
Deep water see Standing water 200
Defogging
Windshield 138
Defrosting 138
Difficulties
While driving see Problems while
driving 51
With starting 47
Direction of rotation (tires) 227
Discharged battery
Jump starting 281
Disconnecting
Vehicle battery 279
Display in the speedometer 117

325 Index
F
Fastening the seat belts 42
Fine adjustment
Cruise control 152
First aid kit 257
Flat tire 274
Lowering the vehicle 276
Mounting the spare wheel 274
Preparing the vehicle 274
Spare wheel 259
Flexible Service System (FSS) 232, 312
Fluid level
Automatic transmission 222
Fog lamp, rear 267
Fog lamps 111
Replacing bulbs 266
Fog lamps, front
Replacing bulbs 267
Switching on 111
Folding
Exterior mirrors 128
Folding electrically
Exterior rear view mirrors
1284-ETS 25, 79
Indicator lamp 252
LOW RANGE mode 80
Malfunction indicator lamp 252
Warning lamp 251
Front airbags 63
Front fog lamps
Indicator lamp 253
Front lamps
Replacing bulbs 266, 268
Front towing eyes 285
FSS (Flexible Service System) 232, 312
Fuel 215
Additives 303
Fuel reserve warning lamp 252
Gasoline additives 303
Premium unleaded gasoline 215,
303
Requirements 303
Reserve warning 25
Fuel additives 303
Fuel filler flap 214
Locking 214
Opening 263
Unlocking 214
Fuel requirements 303Fuel tank
Filler flap 214
Fuels, coolants, lubricants etc. 300
Functions
Trip computer* 186
Fuse box 287, 288
Fuse chart 287
Fuses 287
F us e box i n engi ne com p art me nt 2 87
Fuse box in passenger footwell 288
Fuse chart 287
Fuse extractor 287
Spare fuses 287
G
Garage door opener 29, 180
Erasing in remote control 185
Gasoline see Fuel 215
Gasoline additives 303
Gauge for
Coolant temperature 25
Fuel 25
Outside temperature 25

327 Index
I
Identification labels 292
Certification label 292
Vehicle identification number
(VIN) 292
Ignition 33
Immobilizer 83
Activating 54, 83
Deactivating 83
Indicator lamp
Adjustable steering column 253
Brake pad wear 254
Coolant 249
Front fog lamps 253
Low engine oil level 253
Indicators, additional
Speedometer display 256
Infant and child restraint systems 68
Installing 71
LATCH child seat mounts 72Information
About service and warranty 10
Button for Tele Aid* 177
Inside rear view mirror
Antiglare 126
Installing
Infant and child restraint systems 71
Wiper blades 273
Instrument cluster 24, 116, 313
Cleaning 238
Coolant temperature gauge 117
Display in the speedometer 117
Illumination 116
Lamps in 252
Outside temperature indicator 118
Instruments and controls see Cockpit 22
Integrated remote control
Erasing memory 185
Operating 185
Interior lighting 112Activating automatic control 113
Deactivating automatic control 113
Manual operation 113
Reading lamps 114
Interior storage spaces 164
Armrest 165
Cup holder 167
Glove box 164
Storage compartment in front of
armrest 165
Storage compartment under front pas-
senger seat* 164
Intermittent wiping 130
J
Jack 258
Jump starting 281