2007 MERCEDES-BENZ SL55AMG wheel size

406 Practical hintsFlat tirePreparing the vehicle
Prepare the vehicle as described
(page 405).

Turn spare wheel bracket counter-
clockwise to loosen.

Take the spare wheel out of the trunk
(page 389).
Removing tensioning straps
(vehicles with 19" spare wheel only)
A 19" spare wheel has two tensioning
straps on it that must both be removed be-
fore mounting the spare wheel.1Buckle
2Clip

Press on both clips 2 simultaneously
to release buckle 1.Lifting the vehicle

Prevent the vehicle from rolling away
by blocking wheels with wheel chocks
(not included) or other sizable objects.
When changing wheel on a level sur-
face:
Place one wheel chock or other
sizable object in front of and anoth-
er wheel chock or sizable object be-
hind the wheel that is diagonally
opposite to the wheel being
changed.
Always try lifting the vehicle using the
jack on a level surface. However,
should circumstances require you to do
so on a hill, place a wheel chock or oth-
er sizable object and the other wheel
chock or sizeable object as follows:

Place wheel chocks or other sizable
objects on the downhill side block-
ing both wheels of the axle not be-
ing worked on.
i
The tensioning straps are shown in red for
illustration purposes. The tensioning straps on
the spare wheel of your vehicle are black.
i
Keep the tensioning straps in a safe place.
You will need them to store the spare wheel in
the trunk after use (
page 390).

412 Practical hintsFlat tireLowering 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.
Replacing jack support tube cover

Slide tongue of cover under the upper
edge of the tube opening.

Applying even pressure, press cover
until it snaps into place.
Be careful not to damage the locking
tabs or clamp the plastic retaining
strap.
i
The flat tire may be transported in the trunk
when the retractable hardtop is raised. If avail-
able, use a protective sheet on the spare wheel.
Vehicles with TPMS or Advanced TPMS*:
Do not activate the tire inflation pressure moni-
tor until a full size wheel/tire with functioning
sensor has been placed back into service on 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.
i
For information on storing the spare wheel
back into the trunk, see “Storing the spare wheel
after use” (
page 390).


415 Practical hints
Batteries
!
The factory-equipped VRLA battery is
leak-proofed. Only use a battery as replacement
that has the same security features and is of
identical size, voltage, and capacity as the
factory-equipped battery.
The battery, the battery ventilation and the later-
al plug must always be securely installed when
the vehicle is in operation.
Warning!
G
Failure to follow these instructions can re-
sult in severe injury or death.
Never lean over batteries while connecting,
you might get injured.
Battery fluid contains sulfuric acid. Do not
allow this fluid to come in contact with eyes,
skin or clothing. In case it does, immediately
flush affected area with water and seek
medical help if necessary.
A battery will also produce hydrogen gas,
which is flammable and explosive. Keep
flames or sparks away from battery, avoid
improper connection of jumper cables,
smoking, etc.
!
Never loosen or detach battery terminal
clamps while the engine is running or the
SmartKey is in the starter switch. Otherwise the
alternator and other electronic components
could be severely damaged.
Have the starter battery checked regularly by an
authorized Mercedes-Benz Center.
Refer to Maintenance Booklet for maintenance
intervals or contact an authorized
Mercedes-Benz Center for further information.
Warning!
G
Do not place metal objects on the battery as
this could result in a short circuit.
Use leak-proof batteries only to avoid the
risk of acid burns in the event of an acci-
dent.
Warning!
G
The brake system requires electrical power
to operate.
A malfunction in the vehicle’s power supply
or electrical system may impair brake sys-
tem operation and switch it into its emer-
gency operation mode. The same applies if
battery is disconnected. To brake, the driver
must then apply significantly greater brake
pedal pressure and depress the pedal much
further to obtain the expected braking ef-
fect. If necessary, apply full pressure to the
brake pedal. Brakes are only applied to the
front wheels. Stopping distance is in-
creased! Adjust your driving style according-
ly. For more information, see
“Electro-hydraulic brake system”
(page 92).

435 Technical data
Rims and tires
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 = M
ercedes-Benz O
riginal equipment
tires
AMG vehicles:
Does not apply to all approved tires on AMG
vehicles. For information on tested and ap-
proved tires for AMG vehicles, contact an au-
thorized Mercedes-Benz Center.


MOE = M
ercedes-Benz O
riginal E
xtended
(tires with limited run-flat characteristics)
original equipment tires
Using tires other than those approved by
Mercedes-Benz may result in damage that is not
covered by the Mercedes-Benz Limited
Warranty.
i
For information on driving with MOExtended
tires, see “MOExtended system”(
page 301).
!
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 re-
sult.
i
Further 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. Some vehicles may have supplemental
tire inflation pressure information for driving at
high speeds (
page 292) or for vehicle loads
less than the maximum loaded vehicle condition
(
page 292). If such information is provided, it
can be found on the placard located on the in-
side 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.
i
The 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 (Performance 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. See an authorized Mercedes-Benz
Center for more information.

436 Technical dataRims and tiresSame size tires
18" tires
19" tires
SL 550
SL 600
SL 55 AMG
Rims (light alloy)
8.5 J x 18 H2
8.5 J x 18 H2
8.5 J x 18 H2
Wheel offset
1.38 in (35 mm)
1.38 in (35 mm)
1.18 in (30 mm)
Summer tires
1
1Radial-ply tires
-
-
-
Winter tires
1,2
2Not available as factory equipment.
255/40 R18 95V M+S .
255/40 R18 95V M+S .
255/40 R18 95V M+S .
SL 55 AMG (Performance Package*)
SL 65 AMG
Rims (light alloy)
8.5 J x 19 EH2
Wheel offset
1.18 in (30 mm)
Summer tires
-
Winter tires
1,2
1Radial-ply tires2Not available as factory equipment.
255/35 R19 96V XL (Extra Load) M+S .

437 Technical data
Rims and tires
Mixed size tires
SL 550
SL 600
Front axle:
Rims (light alloy)
8.5 J x 18 H2
8.5 J x 18 H2
Wheel offset
1.38 in (35 mm)
1.38 in (35 mm)
Summer tires
1
1Radial-ply tires
255/40 R18 95W
255/40 R18 95Y
Rear axle:
Rims (light alloy)
9.5 J x 18 H2
9.5 J x 18 H2
Wheel offset
1.57 in (40 mm)
1.57 in (40 mm)
Summer tires
1,2
2Must not be used with snow chains.
285/35 R18 97W
285/35 R18 97Y