water pump MERCEDES-BENZ ML350 2003 W163 Owner's Manual

287 Technical data
Fuels, coolants, lubricants etc.
Fuel requirements
Use only premium unleaded meeting
ASTM standard D 439:

The octane number (posted at the
pump) must be 91 min. It is an average
of both the Research (R) octane num-
ber and the Motor (M) octane number:
(R+M) / 2). This is also known as the
ANTI-KNOCK INDEX.
Unleaded gasoline containing oxygenates
such as ethanol, IPA, IBA and TBA can be
used provided the ratio of any one of these
oxygenates to gasoline does not exceed
10%; MTBE not to exceed 15%.
The ratio of methanol to gasoline must not
exceed 3% plus additional cosolvents.
Using mixtures of ethanol and methanol is
not allowed. Gasohol, which contains 10%
ethanol and 90% unleaded gasoline, can be
used.
These blends must also meet all other fuel
requirements, such as resistance to spark
knock, boiling range, vapor pressure etc.
Gasoline additives
A major concern among engine manufac-
turers is carbon build-up caused by gaso-
line. Mercedes-Benz recommends only the
use of quality gasoline containing additives
that prevent the build up of carbon depos-
its.
After an extended period of using fuels
without such additives, carbon deposits
can build up especially on the intake valves
and in the combustion area, leading to en-
gine performance problems such as:

Warm-up hesitation


Unstable idle


Knocking/pinging


Misfire


Power loss
Do not blend other specific fuel additives
with fuel. This only results in unnecessary
costs and may be harmful to the engine op-
eration.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).

304 IndexDisplay messages
Error 235
Service indicator (FSS) 235
StArt 235
Displays
Service indicator 215
Distance remaining 175
Door entry lamps 107
Door unlock
With Tele Aid* 167
Doors
Opening from inside vehicle 86
Opening from outside 85
Downhill driving
Cruise control 147
Downshifting 113
Drink holder see Cup holder 155
Drinking and driving 179
Driving 40, 45
Abroad 197
General instructions 179
In winter 184
Problems 49
Safety systems 71
Through standing water 185
Driving abroad 197Driving instructions 179
Towing a trailer 194
Driving off 181
Driving safety systems
4-ETS 73
ABS 71
BAS 73
ESP 75
Driving systems 146
Cruise control 146
Driving safety systems 71
EBP 74
Parktronic* 149
Driving through water 189
E
Easy entry/exit feature* 95
EBP 74
Indicator lamp 229
Economy mode
Automatic climate control 125
Electric air pump 238
Electrical connections
Trailer 192
Electrical fuses 271
Electrical outlet 158Electrical system
Technical data 281
Electronic Brake Proportioning see EBP
Electronic Stability Program see ESP 25,
75
Electronic stability program see ESP 294
Electronic Traction System see 4-ETS 25
Emergency call system
Requirements 160
Emergency call system* 160
Emergency calls
Initiating an emergency call 163
With Tele Aid* 161
Emergency operation (Limp Home
Mode) 117
Emergency operations
Closing sliding/pop-up roof 246
Locking the vehicle 243
Opening sliding/pop-up roof 246
Remote door unlock 167
Unlocking the vehicle 242
Emergency tensioning device
see ETD 62, 294
Emission control 198
Emission control label 276