2005 MERCEDES-BENZ S55AMG low oil pressure

285 Operation
At the gas station
Windshield washer system and head-
lamp cleaning system*
For more information on refilling the wash-
er reservoir, see “Windshield washer sys-
tem and headlamp cleaning system*”
(page 295).
Coolant
For more information on coolant, see
“Coolant level” (
page 292) and see “Fu-
els, coolants, lubricants, etc.”
(
page 429).Brake fluid
For information on brake fluid, see “Brake
fluid” (
page 431)Engine oil level
For more information on engine oil, see
“Engine oil” (
page 287).
Vehicle lighting
Check function and cleanliness. For more
information on replacing light bulbs, see
“Replacing bulbs” (
page 389).
For more information, see “Switching on
headlamps” (
page 50).
Tire inflation pressure
For information on tire inflation pressure,
see “Checking tire inflation pressure”
(
page 307).
!If you find that the brake fluid in the
brake fluid reservoir has fallen to the
minimum mark or below, have the
brake system checked for brake pad
thickness and leaks immediately.
Notify an authorized Mercedes-Benz
Center immediately. Do not add brake
fluid as this will not solve the problem.
For more information, see “Practical
hints” (
page 339).

432 Technical dataFuels, coolants, lubricants, etc.Premium unleaded gasoline
Fuel requirements
Use only premium unleaded fuel:

The octane number (posted at the
pu mp ) m ust b e 91 m i n. It is an a ve ra ge
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 must not exceed 15%.
The ratio of Methanol to gasoline must not
exceed 3% plus additional co-solvents.
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
!To maintain the engine’s durability and
performance, premium unleaded gaso-
line must be used. If premium unleaded
gasoline is not available and low octane
fuel is used, follow these precautions:

Have the fuel tank only partially
filled with unleaded regular and fill
up with premium unleaded as soon
as possible.


Avoid full throttle driving and abrupt
acceleration.


Do not exceed an engine speed of
3000 rpm if the vehicle is loaded
with a light load such as two
persons and no luggage.


Do not exceed 2/3 of maximum
accelerator pedal position if the ve-
hicle is fully loaded or operating in
mountainous terrain.

447 Index
Centigrade (°C)
Setting temperature units 163
Central locking
Automatic 112
From inside 113
Switch 113
Switching on/off (control
system) 168
Unlocking from inside 113
Change of address or ownership 12
Changing
CDs 151
SmartKey setting 169
Vehicle level 230, 233
Charcoal filter 200
Activating 200
Deactivating 201
Charging
Vehicle battery 404Checking
Brake fluid 284
Coolant level 292
Oil level 285, 287
Oil level via control system 288
Tire inflate pressure 285
Vehicle lighting 285
Child safety 71
Air bags 62
Infant and child restraint systems 66,
71
LATCH child seat anchors 76
Cigarette lighter 252
Cleaning
Cup holder 335
Distronic* system sensor cover 333
Gear selector lever 335Hard plastic trim items 335
Headlamps 186
Headliner and shelf below rear
window 335
Instrument cluster 335
Leather upholstery 336
Light alloy wheels 335
Nubuck leather upholstery 336
Parktronic* system sensor 333
Plastic and rubber parts 336
Seat belts 335
Steering wheel 335
Upholstery 336
Windows 334
Windshield 53
Wiper blades 333
Wood trims 336
Cleaning tires 298