2008 MERCEDES-BENZ S65AMG technical data

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.

720 Technical data
Rims and tires
Mixed size tires
ModelS 600S 550*
S 600*S 550 (Sport Package*)
S 600 (Sport Package*)S63AMG*
S65AMG*
Front axle:
Rims (light alloy)8.5 J x 18 H28.5 J x 19 H2 – –
AMG rims (light alloy) – –8.5 J x 19 H28.5 J x 20 H2
Wheel offset1.69 in (43 mm)1.69 in (43 mm)1.69 in (43 mm)1.69 in (43 mm)
Summer tires1
1Radial-ply tires.
255/45 R18 99V255/40 R19 96Y255/40 R19 96Y255/35 ZR20 XL (Extra
Load)
Rear axle:
Rims (light alloy)9.5 J x 18 H29.5 J x 19 H2 – –
AMG rims (light alloy) – –9.5 J x 19 H29.5 J x 20 H2
Wheel offset1.69 in (43 mm)1.69 in (43 mm)1.69 in (43 mm)1.69 in (43 mm)
Summer tires1275/45 R18 103V275/40 R19 101Y275/40 R19 101Y275/35 ZR20 XL (Extra
Load)2
2Must not be used with snow chains.

721 Technical data
Rims and tires
Spare wheel
!Please compare the recommended tire in-
flation pressure for your vehicle with the tire in-
flation pressure on the yellow label located on
the spare wheel rim.
If the tire inflation pressure on the yellow label
on the spare wheel rim differs from the values
given in this Operator’s Manual, inflate the spare
wheel tire to the recommended tire inflation
pressure given on the yellow label on the spare
wheel rim.iPlease note that the tire inflation pressure of
the spare tire differs from the tire inflation pres-
sure of the road tires.
ModelS 550
S 600S 550 (Sport Package*)
S 600 (Sport Package*)S63AMG
S65AMG
Rim (steel)4.5 B x 194.5 B x 19 –
Rim (light alloy) – –4.5 B x 19 H2
Wheel offset1.38 in (35 mm)1.38 in (35 mm)1.38 in (35 mm)
Minispare tire1
1Must not be used with snow chains.
T 155/70 R19 113MT 155/70 R19 113MT 155/70 R19 113M
Recommended tire inflation pressure61 psi (4.2 bar)61 psi (4.2 bar)61 psi (4.2 bar)

722 Technical data
Electrical system
ModelS 550
S 550 4MATICS 600S 63 AMGS 65 AMG
Generator (alternator)14 V/180 A14 V/220 A14 V/220 A14 V/220 A
Starter motor12 V/1.7 kW12 V/1.7 kW12 V/2.1 kW12 V/1.7 kW
Starter battery12 V/35 Ah12 V/35 Ah12 V/35 Ah12 V/35 Ah
Electrical consumer
battery12 V/95 Ah12 V/95 Ah12 V/95 Ah12 V/95 Ah
Spark plugsNGK PLKR 6A
Bosch Y 7 MPP 33NGK IFR 6Q-G–1
1Contact an authorized Mercedes-Benz Center
NGK IFR 6Q-G
Electrode gap0.031 in (0.8 mm)0.028 in (0.7 mm)0.039 in (1.0 mm)0.028 in (0.7 mm)
Tightening torque15 – 18 lb-ft (20 – 25 Nm)18 – 22 lb-ft (25 – 30 Nm)15 – 18 lb-ft (20 – 25 Nm)15 – 22 lb-ft (20 – 30 Nm)