MERCEDES-BENZ S550 4MATIC 2008 W221 Owner's Manual

710 Technical data
The “Technical data” section provides the
necessary technical data for your vehicle.
Parts service
All authorized Mercedes-Benz Centers
maintain a stock of Genuine
Mercedes-Benz Parts required for mainte-
nance and repair work. In addition, strate-
gically located parts distribution centers
provide quick and reliable parts service.
More than 300 000 different parts for
Mercedes-Benz models are available.
Genuine Mercedes-Benz Parts are subject-
ed to stringent quality inspections. Each
part has been specifically developed, man-
ufactured or selected for and adapted to
Mercedes-Benz vehicles.
Therefore, Genuine Mercedes-Benz parts
should be installed.!The use of non-genuine Mercedes-Benz
parts and accessories not authorized by
Mercedes-Benz could damage the vehicle, which
is not covered by the Mercedes-Benz Limited
Warranty, or could compromise the vehicle’s du-
rability or safety.

711 Technical data
Warranty coverage
Warranty coverage
Your vehicle is covered under the terms of
the warranties printed in the Service and
Warranty Information booklet. Your autho-
rized Mercedes-Benz Center will exchange
or repair any defective parts originally in-
stalled on the vehicle in accordance with
the terms of the following warranties:

New Vehicle Limited Warranty

Emission System Warranty

Emission Performance Warranty

California, Maine, Massachusetts, and
Vermont Emission Control Systems
WarrantyReplacement parts and accessories are
covered by the Mercedes-Benz Parts and
Accessories warranties, copies of which
are available at any authorized
Mercedes-Benz Center.Loss of Service and Warranty
Information Booklet
Should you lose your Service and Warranty
Information booklet, have an authorized
Mercedes-Benz Center arrange for a re-
placement. It will be mailed to you.

712 Technical data
Identification labels
1Certification label (on driver’s B-pillar)
The V
ehicle Identification Number (VIN)
can be found in the following locations:

on the certification label

embossed underneath a cover in the
rear center armrest

on the lower edge of the windshield
Example certification label (U.S. vehicles)
2VIN
3Paintwork code
Example certification label
(Canada vehicles)
2VIN
3Paintwork code
iData shown on certification label are for il-
lustration purposes only. These data are specific
to each vehicle and may vary from data shown in
the illustration. Refer to certification label on ve-
hicle for actual data specific to your vehicle.

713 Technical data
Identification labels
4VIN
Fold down rear center armrest.
VIN 4 is underneath a cover in the
center armrest.
Example illustration
(all models except S 63 AMG and
S65AMG)
5Engine number (engraved on engine)
6VIN (lower edge of windshield)
7Emission control information label,
includes both federal and California
certification exhaust emission
standards
Vacuum line routing diagram label
S63AMG and S65AMG
5Engine number (engraved on engine)
6VIN (lower edge of windshield)
7Emission control information label,
includes both federal and California
certification exhaust emission
standards
Vacuum line routing diagram label
iWhen ordering parts, please specify vehicle
identification and engine numbers.

714 Technical data
Layout of poly-V-belt drive
S 550
1Idler pulley
2Idler pulley
3Automatic belt tensioner
4ABC* tandem pump (pump for
power-steering assistance and ABC*
chassis)
5Air conditioning compressor
6Crankshaft
7Coolant pump
8Generator (alternator)S 63 AMG
1Idler pulley
2Idler pulley
3Idler pulley
4Automatic belt tensioner
5Power steering pump
6Air conditioning compressor
7Crankshaft
8Coolant pump
9Generator (alternator)S 600 and S 65 AMG
1Automatic belt tensioner
2ABC tandem pump (pump for
power-steering assistance and ABC
chassis)
3Air conditioning compressor
4Crankshaft
5Coolant pump
6Generator (alternator)
7Idler pulley
8Idler pulley
9Idler pulley

715 Technical data
Engine
Engine
ModelS 550 (221.171)1
1The quoted data apply only to the standard vehicle. Contact an authorized Mercedes-Benz Center for the corresponding data of all special
bodies and special equipment.
S 550 4MATIC (221.186)1
Engine273273
Mode of operation4-stroke engine, gasoline injection4-stroke engine, gasoline injection
No. of cylinders88
Bore3.86 in (98.00 mm)3.86 in (98.00 mm)
Stroke3.56 in (90.50 mm)3.56 in (90.50 mm)
Total piston displacement333.3 cu in (5461 cm3)333.3 cu in (5461 cm3)
Compression ratio10.7:110.5:1
Output acc. to SAE J 13492
2Premium fuel required. Performance may vary with fuel octane rating.
382 hp/6 000 rpm
(285 kW/6 000 rpm)382 hp/6 000 rpm
(285 kW/6 000 rpm)
Maximum torque
acc. to SAE J 1349391 lb-ft/3 000 rpm
(530 Nm/3 000 rpm)391lb-ft/2800-4800rpm
(530 Nm/2 800 - 4 800 rpm)
Maximum engine speed6 500 rpm6 500 rpm
Firing order1-5-4-2-6-3-7-81-5-4-2-6-3-7-8
Poly-V-belt2 404 mm2 404 mm

716 Technical data
Engine
ModelS 600 (221.176)1
1The quoted data apply only to the standard vehicle. Contact an authorized Mercedes-Benz Center for the corresponding data of all special
bodies and special equipment.
S 63 AMG (221.077)1
Engine275156
Mode of operation4-stroke engine, gasoline injection4-stroke engine, gasoline injection
No. of cylinders128
Bore3.23 in (82.00 mm)4.02 in (102.20 mm)
Stroke3.43 in (87.00 mm)3.72 in (94.60 mm)
Total piston displacement336.4 cu in (5 513 cm3)378.8 cu in (6 208 cm3)
Compression ratio9:111.0:1
Output acc. to SAE J 13492
2Premium fuel required. Performance may vary with fuel octane rating.
510 hp/5 000 rpm
(380 kW/5 000 rpm)518 hp/6 800 rpm
(386 kW/6 800 rpm)
Maximum torque
acc. to SAE J 1349612 lb-ft/1 800 - 3 500 rpm
(830 Nm/1 800 - 3 500 rpm)465 lb-ft/5 200 rpm
(630 Nm/5 200 rpm)
Maximum engine speed5 950 rpm7200 rpm
Firing order1-12-5-8-3-10-6-7-2-11-4-91-5-4-2-6-3-7-8
Poly-V-belt2370 mm2 360 mm

717 Technical data
Engine
ModelS 65 AMG (221.179)1
1The quoted data apply only to the standard vehicle. Contact an authorized Mercedes-Benz
Center for the corresponding data of all special bodies and special equipment.
Engine275
Mode of operation4-stroke engine, gasoline injection
No. of cylinders12
Bore3.25 in (82.60 mm)
Stroke3.66 in (93.00 mm)
Total piston displacement364.9 cu in (5 980 cm3)
Compression ratio9:1
Output acc. to SAE J 13492
2Premium fuel required. Performance may vary with fuel octane rating.
603 hp/4 750 - 5 100 rpm
(450 kW/4 750 - 5 100 rpm)
Maximum torque
acc. to SAE J 1349738 lb-ft/2 000 - 4 000 rpm
(1 000 Nm/2 000 - 4 000 rpm)
Maximum engine speed5 950 rpm
Firing order1-12-5-8-3-10-6-7-2-11-4-9
Poly-V-belt2 370 mm

718 Technical data
Rims and tires
!Only use tires which have been tested and
approved by Mercedes-Benz. Tires approved by
Mercedes-Benz are developed to provide best
possible performance in conjunction with the
driving safety systems on your vehicle such as
ABS or ESP
®. Tires specially developed for your
vehicle and tested and approved by
Mercedes-Benz can be identified by finding the
following on the tire’s sidewall:

MO = Mercedes-Benz Original equipment
tires
S63AMG and S65AMG:
Does not apply to all approved tires on AMG
vehicles. For information on tested and
approved tires for AMG vehicles, contact an
authorized Mercedes-Benz Center.
Using tires other than those approved by
Mercedes-Benz may result in damage that is not
covered by the Mercedes-Benz Limited
Warranty.
!Using tires other than those approved by
Mercedes-Benz can have detrimental effects,
such as

poor handling characteristics

increased noise

increased fuel consumption
Moreover, tires and rims not approved by
Mercedes-Benz may, under load, exhibit dimen-
sional variations and different tire deformation
characteristics that could cause them to come
into contact with the vehicle body or axle parts.
Damage to the tires or the vehicle may be the
result.
iFurther information on tires and rims is
available at any authorized Mercedes-Benz
Center. A placard with the recommended tire in-
flation pressures is located on the driver’s door
B-pillar (
page 553). Some vehicles may have
supplemental tire inflation pressure information
for driving at high speeds (
page 559) or for ve-
hicle loads less than the maximum loaded
vehicle condition (
page 568). If such informa-
tion is provided, it can be found on the placard lo-
cated on the inside of the fuel filler flap. The tire inflation pressure should be checked
regularly and should only be adjusted on cold
tires. Follow tire manufacturer’s maintenance
recommendation included with vehicle.
iThe following pages also list the approved
wheel rim and tire sizes for equipping your vehi-
cles with winter tires. Winter tires are not avail-
able as standard or optional factory equipment,
but can be purchased from an authorized
Mercedes-Benz Center.
Depending on vehicle model and the standard or
optional factory-equipped wheel rim/tire config-
uration on your vehicle (Appearance Package,
Sport Package etc.), equipping your vehicle with
winter tires approved for your vehicle model may
also require the purchase of two or four wheel
rims of the recommended size for use with these
winter tires. Contact an authorized
Mercedes-Benz Center for more information.

719 Technical data
Rims and tires
Same size tires
ModelS 550
S 550 4MATICS 600
S 550 (Sport Package*)
S 600 (Sport Package*)S63AMG
S65AMG
Rims (light alloy)8.5 J x18 H28.5 J x18 H28.5 J x19 H2
Wheel offset1.69 in (43 mm)1.69 in (43 mm)1.69 in (43 mm)
All-season tires1
1Radial-ply tires.
255/45 R18 99H M+S ––
Winter tires1,2,3
2For use with snow chains contact an authorized Mercedes-Benz Center.3Not available as factory equipment.
255/45 R18 99H M+S.255/45 R18 99H M+S.255/40 R19 100V XL (Extra Load) M+S.