2005 MERCEDES-BENZ SL55AMG torque

308 OperationTires and wheelsRotating tires
Tire rotation can be performed on vehicles
with tires of the same dimension all
around. If your vehicle is equipped with
tires of the same dimension all around,
tires can be rotated, observing a a
front-to-rear rotation pattern that will
maintain the intended rotation (spinning)
direction of the tire (
page 282).
In some cases, such as when your vehicle
is equipped with mixed-size tires (different
tire dimension front vs. rear), tire rotation
is not possible.If applicable to your vehicle’s tire configu-
ration, tires can be rotated according to
the tire manufacturer's recommended in-
tervals in the tire manufacturer’s warranty
pamphlet located in your vehicle literature
portfolio. If none is available, tires should
be rotated every 3 000 to 6 000 miles
(5 000 to 10 000 km), or sooner if neces-
sary, according to the degree of tire wear.
The same rotation (spinning) direction
must be maintained (
page 282).
Rotate tires before the characteristic tire
wear pattern becomes visible (shoulder
wear on front tires and tread center wear
on rear tires).
Thoroughly clean the mounting face of
wheels and brake disks, i.e. the inner side
of the wheels/tires, during each rotation.
Check for and ensure proper tire inflation
pressure.For information on wheel change, see the
“Practical hints” section (
page 372) and
(
page 388).
Warning!
G
Rotate front and rear wheels only if the tires
are of the same dimension.
If your vehicle is equipped with mixed-size
tires (different tire dimensions front vs.
rear), tire rotation is not possible.
Warning!
G
Have the tightening torque checked after
changing a wheel. Wheels could become
loose if not tightened with a torque of
96 lb-ft (130 Nm).
Only use genuine Mercedes-Benz wheel
bolts specified for your vehicle’s rims.

399 Practical hints
Flat tire

Detach the electric air pump.

Stow the electrical plug and the air
hose behind the flap and place the air
pump back in the trunk.Lowering the vehicle

Lower vehicle by turning crank coun-
terclockwise until the full weight of the
vehicle is resting on the ground.

Pull the jack out of the jack support
tube.
1 - 5 Wheel bolts

Tighten the five wheel bolts evenly, fol-
lowing the diagonal sequence illustrat-
ed (1 to 5), until all bolts are tight.
Observe a tightening torque of 96 lb-ft
(130 Nm).

Before storing the jack in the trunk,
crank back to storage position and fold
in the arm.
iThe flat tire may be transported in the
trunk when the retractable hardtop is
raised. Use the protective sheet provid-
ed with the spare wheel. Do not acti-
vate the tire inflation pressure monitor
until the deflated tire has been re-
moved from the vehicle.
Warning!
G
Have the tightening torque checked after
changing a wheel. The wheels could come
loose if they are not tightened to a torque of
96 lb-ft (130 Nm).Warning
G
When turning the wheel wrench to tighten
the wheel bolts, make sure you position
hands on the wrench in such a way that you
avoid injury to yourself, such as scraping
your hands against the wheel. Make sure
turning the wheel wrench will not scratch or
damage the wheel rim.

420 Technical dataEngineModel
SL 500 (230.475)
1
SL 600 (230.476)
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
3.31 in (84.00 mm)
3.43 in (87.00 mm)
Total piston displacement
303.0 cu in (4966 cm
3)
336.4 cu in (5 513 cm
3)
Compression ratio
10:1
9:1
Output acc. to SAE J 1349
302 hp / 5 600 rpm
2
(225 kW / 5 600 rpm)
493 hp /5 000 rpm
2
(368 kW / 5 000 rpm)
Maximum torque acc. to SAE J 1349
339 lb-ft / 2 700 rpm
(460 Nm / 2700 rpm)
590 lb-ft /3 500 rpm
(800 Nm /3 500 rpm)
Maximum engine speed
6000 rpm
5750 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
2390 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.

421 Technical data
Engine
Model
SL 55 AMG (230.474)
1
SL 65 AMG (230.479)
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)
3.25 in (82.60 mm)
Stroke
3.60 in (92.00 mm)
3.66 in (93.00 mm)
Total piston displacement
331.8 cu in (5439 cm
3)
364.9 cu in (5980 cm
3)
Compression ratio
9:1
9:1
Output acc. to SAE J 1349
493 hp / 6 100 rpm
2
(368 kW / 6 100 rpm)
603 hp / 4 400-5 100 rpm
2
(450 kW / 4 800-5 100 rpm)
Maximum torque acc. to SAE J 1349
516 lb-ft / 2 750-4000 rpm
(700 Nm / 2 750-4000 rpm)
738 lb-ft / 2 000-4000 rpm
(1 000 Nm / 2 000-4000 rpm)
Maximum engine speed
6500 rpm
5 950 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
2 462 mm/1 289 mm
2 335 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.

428 Technical dataElectrical systemModel
SL 500
SL 600
SL 55 AMG
SL 65 AMG
Generator (alternator)
14 V/150 A
14 V/180 A
14 V/180 A
14 V/180 A
Starter motor
12 V/1.7 kW
12 V/1.7 kW
12 V/1.7 kW
12 V/1.7 kW
BatteryStarter battery
12 V/35 Ah
12 V/35 Ah
12 V/35 Ah
12 V/35 Ah
Battery for electrical consumers
12 V/70 Ah
12 V/70 Ah
12 V/70 Ah
12 V/70 Ah
Spark plugs
Bosch F 8 DPER
NGK PFR5R11
NGK IFR6QG
NGK ILFR6A
NGK IFR6QG
Electrode gap
0.039 in (1.0 mm)
0.028 in (0.7 mm)
0.031 in (0.8 mm)
0.028 in (0.7 mm)
Tightening torque
15 – 22 lb-ft
(20 – 30 Nm)
15 – 22 lb-ft
(20 – 30 Nm)
18 – 22 lb-ft
(25 – 30 Nm)
15 – 22 lb-ft
(20 – 30 Nm)

442 Technical termsMemory function
Used to store three individual seat,
steering wheel and mirror positions for
each SmartKey or SmartKey with
KEYLESS-GO*.
MON
The Motor Octane Number for gasoline
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
ANTI-KNOCK INDEX.
Multifunction display
Two display fields in the instrument
cluster 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
on the tachometer dial, see “Tachome-
ter” (
page 132). Avoid this engine
speed range, as it may result in serious
engine damage that is not covered by
the Mercedes-Benz Limited Warranty.
Parktronic (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.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 operation (S)
and comfort operation (C).
SL 55 AMG with steering wheel gear-
shift control and manual shift program:
in addition to S and C (for regular S or
comfort C operation, see above), you
can use MANUAL for manual shift pro-
gram

444 Technical termsTightening torque
Force times lever arm (e.g. a lug
wrench) with which threaded fasteners
such as wheel bolts are tightened.
Tire speed rating
Part of tire designation; indicates the
speed range for which a tire is ap-
proved.
Traction
Force exerted by the vehicle on the
road via the tires.
Vehicle level control
The ground clearance of the vehicle is
automatically controlled according to a
selected setting and speed. The driver
can choose manually within a range of
ground clearance, for example on very
rough roads.
VIN
(V
ehicle I
dentification N
umber)
The number set by the manufacturer
and placed on the body to uniquely
identify each vehicle produced.Voice control system*
Voice control system for car phones,
portable cell phones and audio sys-
tems (radio, CD, etc.).
Wind screen
Screen for deflecting wind from the ve-
hicle interior when the hardtop is low-
ered.
Xenon headlamps
Headlamps which use an electric arc as
the light source and produce a more in-
tense light than filament headlamps.

464 IndexSwitching on
Front fog lamps 127
Rear fog lamp 127
Switching on headlamps 51
Symbol
Distance warning function* 142, 212
Synchronizing
ESP 341
Power windows 195
Synchronizing time with head unit 149
T
Tachometer 27, 132
Tail lamps 381, 385
Technical data
Electrical system 428
Main dimensions 429
Rims and tires 422
Weights 430
Windshield and headlamp washer
system 438Tele Aid 237
Emergency calls 239
Information 242
Initiating an emergency call
manually 240
Messages in display 364
Roadside Assistance 240
SOS button 31, 240
Tele Aid system 237
Tele Aid System 444
Telephone* 28, 236
Answering a call 162
Dialing 162
Ending a call 163
Hands-free microphone 31
Loading phone book* 163
Messages in display 364
Operating 161
Redialing 163
Telephones and two-way radios 264Temperature
Outside temperature indicator 133
Sensor 31
Setting interior temperature 185
Setting units in display 148
Tires 289
Tightening torque 399, 444
Time
Settings (control system) 149
Time display mode
Setting 151
TIN 307
Tire
Vehicle maximum load on 307
Tire and Loading Information 283
Tire and loading terminology 305
Tire care and maintenance 280
Tire Identification Number see TIN
Tire inflation pressure 390
Checking 269, 288, 290
Setting units 156