Page 577 of 761

576 Operation
Tires and wheels
Tire and loading terminology
Accessory weight
The combined weight (in excess of those 
standard items which may be replaced) of 
automatic transmission, power steering, 
power brakes, power windows, power 
seats, radio, and heater, to the extent that 
these items are available as 
factory-installed equipment (whether 
installed or not).
Air pressure
The amount of air inside the tire pressing 
outward on each square inch of the tire. 
Air pressure is expressed in pounds per 
square inch (psi), or kilopascal (kPa) or 
bars.
Aspect ratio
Dimensional relationship between tire 
section height and section width 
expressed in percentage.Bar
Another metric unit for air pressure. There 
are 14.5038 pounds per square inch (psi) 
to 1 bar; there are 100 kilopascals (kPa) 
to 1 bar.
Bead
The tire bead contains steel wires wrapped 
by steel cords that hold the tire onto the 
rim.
Cold tire inflation pressure
Tire inflation pressure when your vehicle 
has been sitting for at least 3 hours or driv-
en no more than 1 mile (1.6 km). 
Curb weight
The weight of a motor vehicle with stan-
dard equipment including the maximum 
capacity of fuel, oil, and coolant, and, if so 
equipped, air conditioning and additional 
optional equipment, but without passen-
gers and cargo.DOT (Department of Transportation)
A tire branding symbol which denotes the 
tire meets requirements of the 
U.S. Department of Transportation.
GAWR (G
ross Axle Weight Rating)
The GAWR is the maximum permissible 
axle weight. The gross vehicle weight on 
each axle must never exceed the GAWR for 
the front and rear axle indicated on the 
certification label located on the driver’s 
door B-pillar.
GVW (G
ross Vehicle Weight)
The GVW comprises the weight of the 
vehicle including fuel, tools, spare wheel, 
installed accessories, passengers and 
cargo and, if applicable, trailer tongue 
load. The GVW must never exceed the 
GVWR indicated on the certification label 
located on the driver’s door B-pillar. 
     
        
        Page 725 of 761

724 Technical data
Fuels, coolants, lubricants, etc.
Capacities
Vehicle components and their respective 
lubricants must match. Therefore use only 
products tested and approved by 
Mercedes-Benz.
Please refer to the Factory Approved 
Service Products pamphlet (USA only), or 
inquire at an authorized Mercedes-Benz 
Center.
Warning!G
Comply with all valid regulations with re-
spect to handling, storing and disposing of 
service fluids. Otherwise you could endan-
ger persons or the environment.
Keep service fluids out of the reach of chil-
dren.
For health reasons, you should prevent ser-
vice fluids from coming into direct contact 
with your skin or clothing.
If a service fluid is swallowed, contact a phy-
sician immediately.
ModelCapacityFuels, coolants, lubricants, etc.
Engine with oil filterS 550
S 550 4MATIC8.98 US qt. (8.5 l)Approved engine oils
S6009.51 US qt. (9.0 l)
S63 AMG9.25 US qt. (8.75 l)
S65 AMG9.51 US qt. (9.0 l)
Automatic transmissionS 550
S 550 4MATIC10.36 US qt. (9.8 l)MB Automatic Transmission Fluid
S6008.14 US qt. (7.7 l)
S63 AMG9.25 US qt. (8.75 l)
S65 AMG9.2 US qt. (8.7 l) 
     
        
        Page 726 of 761
725 Technical data
Fuels, coolants, lubricants, etc.
ModelCapacityFuels, coolants, lubricants, etc.
Rear axleS 550
S 550 4MATIC1.27 US qt. (1.2 l)Hypoid gear oil SAE 85 W 90
S 6002.11 US qt. (2.0 l)
S 63 AMG1.27 US qt. (1.2 l)Fuchs Titan EG 5010 D
S 65 AMG1.69 US qt. (1.6 l)
Hydraulic system ABC*All models4.2 US qt. (4.0 l)MB ABC Fluid
Power steeringS 550
S 550 4MATICapprox. 1.06 US qt. (1.0 l)MB Power Steering Fluid 
(Chevron Texaco PSF 9109)1
1For detailed information, please refer to the Factory Approved Service Products pamphlet (USA only) or contact an authorized Mercedes-Benz Center.
S 600approx. 1.27 US qt. (1.2 l)
S 63 AMGapprox. 1.06 US qt. (1.0 l)
S 65 AMGapprox. 1.27 US qt. (1.2 l)
Front wheel hubsAll modelsapprox. 3.6 oz. (95 g) eachHigh-temperature roller bearing 
grease
Brake systemAll modelsapprox. 0.53 US qt. (0.5 l)MB Brake Fluid (DOT 4+)  
     
        
        Page 728 of 761
727 Technical data
Fuels, coolants, lubricants, etc.
ModelCapacityFuels, coolants, lubricants, etc.
Air conditioning systemAll modelsR-134a refrigerant and special PAG 
lubricant oil (never R-12)
Windshield washerAll modelsapprox. 6.87 US qt (6.5 l)MB Windshield Washer Concentrate1
1Use MB Windshield Washer Concentrate “MB SummerFit” and water for temperatures above freezing or MB Windshield Washer Concentrate “MB SummerFit” and 
commercially available premixed windshield washer solvent/antifreeze for temperatures below freezing point. Follow suggested mixing ratios (page 733).