2005 MERCEDES-BENZ S CLASS octane

13 Introduction
Operator’s Manual
Operating your vehicle outside the USA or Canada
If you plan to operate your vehicle in for-
eign countries, please be aware that:

service facilities or replacement parts
may not be readily available,


unleaded gasoline for vehicles with cat-
alytic converters may not be available;
the use of leaded fuels will damage the
catalysts,


gasoline may have a considerably low-
er octane rating, and improper fuel can
cause engine damage.Certain Mercedes-Benz models are avail-
able for delivery in Europe under our Euro-
pean Delivery Program. For details, consult
your authorized Mercedes-Benz Center or
write to:
In the USA:
Mercedes-Benz USA, LLC
European Delivery Department
One Mercedes Drive
Montvale, NJ 07645-0350
In Canada:
Mercedes-Benz Canada, Inc.
European Delivery Department
98 Vanderhoof Avenue
Toronto, Ontario M4G 4C9

284 OperationAt the gas station
Replace the fuel cap by turning it to the
right.
You will hear when the fuel cap is tight-
ened.

Close the fuel filler flap.
Check regularly and before a long trip
1Windshield washer and headlamp
cleaning system*
2Coolant level
3Brake fluid
Warning!
G
Overfilling of the fuel tank may create pres-
sure in the system which could cause a gas
discharge. This could cause the gas to spray
back out when removing the fuel pump noz-
zle, which could cause personal injury.
iOnly use premium unleaded gasoline
with a minimum Posted Octane Rating
of 91 (average of 96 RON/86 MON).
Information on gasoline quality can
normally be found on the fuel pump.
More information on gasoline can be
found in the Factory Approved Service
Products pamphlet.iLeaving the engine running and the fuel
cap open can cause the yellow engine
malfunction indicator lamp ?
(USA only),
±
(Canada only)
to illuminate.
For more information, see the “Practi-
cal hints” section (
page 341).
iOpening the hood, see (
page 286).


420 Technical dataEngineModel
S 430 (220.070, 220.170)
1
S 430 4MATIC (220.183)
1
1The quoted data apply only to the standard vehicle. See an authorized Mercedes-Benz Center for the corresponding data of all special bodies and special equipment.
S 500 (220.175)
1
S 500 4MATIC (220.184)
1
Engine
113
113
Mode of operation
4-stroke engine, gasoline injection
4-stroke engine, gasoline injection
No. of cylinders
8
8
Bore
3.54 in (89.90 mm)
3.82 in (97.00 mm)
Stroke
3.31 in (84.00 mm)
3.31 in (84.00 mm)
Total piston displacement
260.3 cu in (4266 cm
3)
303.0 cu in (4966 cm
3)
Compression ratio
10:1
10:1
Output acc. to SAE J 1349
275 hp/5750 rpm
2
(205 kW/5750 rpm)
2Premium fuel required. Performance may vary with fuel octane rating.
302 hp/5600 rpm
2
(225 kW/5600 rpm)
Maximum torque
acc. to SAE J 1349
295 lb-ft/3000 - 4400 rpm
(400 Nm/3000 - 4400 rpm)
339 lb-ft/2700 - 4250 rpm
(460 Nm/2700 - 4250 rpm)
Maximum engine speed
6000 rpm
6000 rpm
Firing order
1-5-4-2-6-3-7-8
1-5-4-2-6-3-7-8
Poly-V-belt
2380 mm
2380 mm

421 Technical data
Engine
Model
S 55 AMG (220.174)
1
S 600 (220.176)
1
Engine
113
275
Mode of operation
4-stroke engine, gasoline injection
4-stroke engine, gasoline injection
No. of cylinders
8
12
Bore
3.82 in (97.00 mm)
3.23 in (82.00 mm)
Stroke
3.62 in (92.00 mm)
3.43 in (87.00 mm)
Total piston displacement
331.8 cu in (5439 cm
3)
336.4 cu in (5513 cm
3)
Compression ratio
9:1
9:1
Output acc. to SAE J 1349
493 hp/6100 rpm
2
(368 kW/6100 rpm)
493 hp/5000 rpm
2
(368 kW/5000 rpm)
Maximum torque
acc. to SAE J 1349
516 lb-ft/2750 - 4000 rpm
(700 Nm/2750 - 4000 rpm)
590 lb-ft/1800 - 3500 rpm
(800 Nm/1800 - 3500 rpm)
Maximum engine speed
6500 rpm
5950 rpm
Firing order
1-5-4-2-6-3-7-8
1-12-5-8-3-10-6-7-2-11-4-9
Poly-V-belt
Belt one: 1289 mm
Belt two: 2462 mm
2335 mm
1The quoted data apply only to the standard vehicle. See an authorized Mercedes-Benz Center for the corresponding data of all special bodies and special equipment.2Premium fuel required. Performance may vary with fuel octane rating.

430 Technical dataFuels, coolants, lubricants, etc.
Model
Capacity
Fuels, coolants, lubricants, etc.
Front wheel hubs
approx. 3.5 oz. (100 g)
each
High-temperature roller bearing
grease
Brake system
0.7 US qt. (0.7 l)
MB Brake Fluid (DOT 4+)
Cooling system
S 430, S 500
S 55 AMG
S 600
approx. 12.1 US qt. (11.5 l)
approx. 14.3 US qt. (13.5 l)
approx. 15.85 US qt. (15 l)
MB 325.0 Anticorrosion/Antifreeze
Low temperature cooling system
S 600
2.3 US qt. (2.2 l)
MB 325.0 Anticorrosion/Antifreeze
Fuel tank
23.2 US gal (88.0 l)
Premium unleaded gasoline:
Minimum Posted Octane 91
(Avg.of96RON/86MON)
including a reserve of
S 430, S 500, S 600
2.9 US gal (11.0 l)
including a reserve of
S55AMG
3.7 US gal (14.0 l)
Air conditioning system
R-134a refrigerant and special PAG
lubricant oil (never R-12)
Windshield washer
3.2 US qt. (3.0 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 point. Follow suggested mixing ratios (page 436).Windshield washer and
headlamp cleaning system
7.1 US qt (6.7 l)
MB Windshield Washer Concentrate
1

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.

440 Technical termsLine of fall
The direct line that an object moves
downhill when influenced by the force
of gravity alone.
Lock button
Button on the door which indicates
whether the door is locked or un-
locked. Pushing the lock button down
on an individual door from inside will
lock that door.
Maintenance System (U.S. vehicles)
Maintenance service indicator in the
multifunction display that informs the
driver when the next vehicle mainte-
nance service is due. The Maintenance
System in your vehicle tracks distance
driven and the time elapsed since your
last maintenance service, and calls for
the next maintenance service accord-
ingly.
Memory function
Used to store three individual seat,
steering wheel and exterior mirror posi-
tions for each SmartKey or SmartKey
with KEYLESS-GO*.MON
(M
otor O
ctane N
umber)
The Motor Octane Number for gasoline
as determined by a standardized meth-
od. It is an indication of a gasoline's
ability to resist undesired detonation
(knocking). The average of both the
MON (Motor Octane Number) and
->RON (Research Octane Number) is
posted at the pump, also known as
ANTI-KNOCK INDEX.
Multifunction display
Display field in the speedometer used
to present information provided by the
control system.
Multifunction steering wheel
Steering wheel with buttons for operat-
ing the control system.Overspeed range
Engine speeds within the red marking
of the tachometer dial. Avoid this en-
gine sp ee d ra nge , a s i t m ay re sul t in s e-
rious engine damage that is not
covered by the Mercedes-Benz Limited
Warranty.
Parktronic system (Parking assist)*
System which uses visual and acoustic
signals to assist the driver during park-
ing maneuvers.
Poly-V-belt drive
Drives engine components (alternator,
AC compressor, etc.) from the engine.

441 Technical terms
Power train
Collective term designating all compo-
nents used to generate and transmit
motive power to the drive axles, includ-
ing:


Engine


Clutch/torque converter


Transmission


Transfer case


Drive shaft


Differential


Axle shafts/axles
Program mode selector switch
Used to switch the automatic transmis-
sion between standard operationS and
comfort operationC.
S 55 AMG with steering wheel gearshift
control and manual shift program: in
addition toS andC (see above), you
can useM for manual operation.REST
(Residual engine heat utilization)
Feature that uses the engine heat
stored in the coolant to heat the vehi-
cle interior for a short time after the en-
gine has been turned off.
Restraint systems
Seat belts, belt tensioners, air bags
and child restraint systems. As inde-
pendent systems, their protective func-
tions complement one another.
RON
(R
esearch O
ctane N
umber)
The Research Octane Number for gaso-
line as determined by a standardized
method. It is an indication of a gaso-
line's ability to resist undesired detona-
tion (knocking). The average of both
the ->MON (Motor Octane Number)
and RON (Research Octane Number) is
posted at the pump, also known as AN-
TI-KNOCK INDEX.Shift lock
When the vehicle is parked, this lock
prevents the transmission selector le-
ver from being inadvertently moved out
of positionP without the SmartKey
turned and the brake pedal depressed.
SRS
(S
upplemental R
estraint S
ystem)
Seat belts, emergency tensioning de-
vice and air bags. Though independent
systems, they are closely interfaced to
provide effective occupant protection.