low oil pressure MERCEDES-BENZ ML55AMG 2003 W163 Owner's Manual

187 Operation
Driving instructions
Checklist before off-road driving
Tires

Check the tread depth and maintain
specified tire pressure (see tire pres-
sure label inside the fuel filler flap).


Check tires for possible damage and
remove foreign objects.


Replace missing valve caps.
Rims


Dented or bent rims can cause tire
pressure loss and damage the tire
beads. For this reason, check and, if
necessary, change rims before driving
off-road.Vehicle tool kit


Check if the vehicle jack is functional.


In all cases take the vehicle tool kit, a
strong tow rope, a shovel and a small
plank (to put under the vehicle jack on
sandy soil) with you.
Driving in steep terrain
Slope angle125° (ML 320, ML 350, ML 500)
21° (ML 55 AMG)
226°(ML 320, ML 350, ML 500)
23° (ML 55 AMG)
!Observe the following during off-road
driving:

Adjust vehicle speed to condition of
terrain. The more uneven, rutty and
steeper the terrain, the lower the
speed should be


Watch out for obstacles, such as
rocks, holes, tree stumps and ruts.


Be especially careful when driving
in unknown territory. It may be nec-
essary to get out of the vehicle and
scout the path you intend to take.


Continuous and speedy driving in
sandy soil overcomes the vehicle
rolling resistance, and helps to pre-
vent the vehicle from sinking into
the ground.


Do not initiate jumps with the vehi-
cle. It interrupts the forward mo-
mentum of the vehicle.


Always drive onto slopes with the
the engine running and the vehicle
in gear.

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).

299 Index
A
ABS 25, 71, 293
ABS control 71
LOW RANGE mode 72
Malfunction indicator lamp 225
Warning lamp 225
Accelerator position, automatic
transmission 117
Accident
In case of 49
Activating
Air circulation mode 130
Air recirculation mode 129
Anti-theft alarm system 78
Automatic climate control 125
ESP 77
Exterior headlamps 46
Hazard warning flasher 106
Headlamps 46
High beams 102
Ignition 33
Immobilizer 51, 78
Rear passenger compartment
ventilation and climate control 131
Rear window defroster 131
Rear window wiper 48Residual heat 130
Seat heater 91
Tow-away alarm 80
Warning indicators (Parktronic*) 151
Windshield wipers 48
Activating automatic central locking 89
Adding
Coolant 206
Engine oil 204, 205
Additional turn signals 247
Adjustable steering column
Indicator lamp 229
Adjusting 34
Backrest tilt 36, 37
Exterior rear view mirror 38
Head restraint height 36, 37
Head restraint tilt 36, 37
Headlamp aim 253
Instrument cluster illumination 110
Manual seat 35
Mirrors 38
Power seats 37
Seat cushion tilt 37
Seat fore and aft 35
Seat fore and aft adjustment 37
Seat height 35, 36Seats 34
Steering wheel 37
Adjusting air distribution
Automatic climate control 127
Adjusting air volume
Automatic climate control 127
Air conditioner (cooling)
Turning on 129
Air conditioning
Cooling 129
Air conditioning refrigerant 286
Air outlets
Automatic climate control 132
Air pressure see Tire inflation pressure 211
Air pump 238
Air recirculation mode 128
Activating 129
Deactivating 129
AIRBAG OFF
Warning lamp 232
Airbags 55
BabySmart
TM airbag deactivation
system 293
BabySmartTM deactivation system 65
Children 56
Front 59

302 IndexCargo floor plates 144
Installing 144
Removing 144
Storing 144
Cargo tie-down rings 140
Catalytic converter 198
CD-changer* 238
Center console 27
Lower part 28
Upper part 27
Central locking
Automatic 89
From inside 89
Switch 90
Unlocking from inside 89, 90
Central locking switch 90
Certification label 276
Charge indicator lamp 233
Charging
Vehicle battery 262
Chart
Fuses 271
CHECK ENGINE malfunction indicator
lamp 232
Checking
Coolant level 201, 206Oil level 201, 203
Tire inflate pressure 201
Vehicle lighting 201
Checking weights
Trailer and vehicle 193
Checklist
Off-road driving 187
Returning from off-road driving 191
Child safety 63
Airbags 56
Infant and child restraint systems 54,
60, 63
LATCH child seat mounts 68
Child safety switch see Blocking of rear
door window operation 69
Cigarette lighter
Front center console 156
Cleaning
Cup holder 221
Gear selector lever 221
Hard plastic trim items 221
Headlamps 121
Headliner 221
Instrument cluster 221
Leather upholstery 222
Light alloy wheels 221MB Tex upholstery 222
Plastic and rubber parts 222
Seat belts 221
Steering wheel 221
Windows 220
Windshield 48
Wiper blades 220
Cleaning and care of the vehicle see
Vehicle care 217
Clock 26, 112
Closing
Glove box 152
Hood 203
Liftgate 88
Rear quarter windows* 136
Side windows 135
Sliding/pop-up roof 246
Sliding/pop-up roof* 137
Closing sliding/pop-up roof
In an emergency 246
Cockpit 22, 293
Combination switch 102
High beam flasher 47, 102
Turn signals 47
Windshield wipers 47