tires MERCEDES-BENZ SL CLASS 2000 User Guide

195 Driving systems
Technical
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index The ESP warning lamp, located in the speedometer dial,
starts to f lash at any vehicle speed as soon as the tires
lose traction and the wheels begin to spin.
To return to the enhanced vehicle stability offered by
ESP: press lower half of the switch (the ESP warning
lamp in the speedometer dial goes out).Important!
If the ESP warning lamp flashes:
• during take-off, apply as little throttle as possible,
• while driving, ease up on the accelerator.

226 Tires, Wheels
Technical
data Instruments
and controlsOperation DrivingInstrument
cluster displayPractical hintsCar care Index
Wheels
Replace rims or tires with the same designation,
manufacturer and type as shown on the original part.
See your authorized Mercedes-Benz Center for further
information.
See your authorized Mercedes-Benz Center for
information on tested and recommended rims and tires
for summer and winter operation. They can also offer
advice concerning tire service and purchase.Tire replacement
Front and rear tires should be replaced in sets.
Furthermore - in the event of tire replacement - the
spare wheel (except Sport Package version), if possible,
should be used on the rear axle. Rims and tires must be
of the correct size and type. For dimensions, see
page 273.
We recommend that you break in new tires for approx.
60 miles (100 km) at moderate speed.
It is imperative that the wheel mounting bolts be
fastened to a tightening torque of 80 ft.lb. (110 Nm)
whenever wheels are mounted.
For rim and tire specifications, see page 273.

227 Tires, Wheels
Technical
data Instruments
and controlsOperation DrivingInstrument
cluster displayPractical hintsCar care Index Rotating wheels
Wheel rotation applies only when winter tires are
mounted on all four wheels.
The wheels can be rotated according to the degree of
tire wear while retaining the same direction of travel.
Rotating, however, should be carried out as
recommended by the tire manufacturer, before the
characteristic tire wear pattern (shoulder wear on front
wheels and tread center wear on rear wheels) becomes
visible, as otherwise the driving properties deteriorate.
Important!
Unid irectional tires must a lways be mou nted w it h a rrow
on tire sidewall pointing in direction of vehicle forward
movement.
Notes:
Wa r n i n g !
When replacing a tire on the 9
1/2 J x 18 H2 (Sport
Package SL 500) or 10 J x 18 H2 (Sport Package
SL 600) wheel rim, removal or mounting must only
be done over the back flange. Removal or
installation over the front flange will cause rim/
tire failure leading to serious or fatal injury.
Worn, old tires can cause accidents. If the tire tread
is badly worn, or if the tires have sustained
damage, replace them.When replacing rims, use only genuine Mercedes-
Benz wheel bolts specified for the particular rim
type. Failure to do so can result in the bolts
loosening and possibly an accident.

228 Tires, Wheels
Technical
data Instruments
and controlsOperation DrivingInstrument
cluster displayPractical hintsCar care Index
Thoroughly clean the inner side of the wheels any time
you rotate the wheels or wash the vehicle underside.
The use of retread tires is not recommended. Retread
tires may adversely affect the handling characteristics
and safety of the vehicle.
Dented or bent rims can cause tire pressure loss and
d ama ge to th e tire bead s. For t his reason, ch eck rims for
damage at regular intervals. The rim f langes must be
checked for wear before a tire is mounted. Remove
burrs, if any.
Check and ensure proper tire inflation pressure after
rotating the wheels. For tire inf lation pressure see
page 234.Spare wheel
(except Sport Package)
The spare wheel rim size is 8
1/4 J x 17 H2.
In the case of a f lat tire, or breakdown, you may
temporarily use the spare wheel.
Unid irectional tires must a lways be mou nted w it h a rrow
on tire sidewall pointing in direction of vehicle forward
movement.
If the arrow on tire sidewall does not point in direction
of vehicle forward movement when using the spare
wheel, observe the following restrictions:
• Drive to the nearest repair facility to have the flat
tire repaired or replaced as appropriate.
• Do not operate vehicle with more than one spare
wheel mounted.
For additional information, refer to page 273.
Wa r n i n g !
The spare wheel rim is for temporary use only. Use
for over a total of 12 000 miles (20 000 km)
(aggregate of all uses) may cause wheel rim failure
leading to an accident and possible injuries.

229 Tires, Wheels
Technical
data Instruments
and controlsOperation DrivingInstrument
cluster displayPractical hintsCar care Index Spare Wheel
(with Sport Package)
The spare wheel rim size is 8
1/4 J x 17 H2 with tire size
245/45 R 17 95W.
In the case of a f lat tire or breakdown, you may
temporarily use the spare wheel.
Unidirectional tires must always be mounted with arrow
on tire sidewall pointing in direction of vehicle forward
movement. If the arrow on tire sidewall does not point
in direction of vehicle forward movement when using
the spare wheel, observe the following restrictions:
• Do not exceed vehicle speed of 50 mph (80 km/h).
• Drive to the nearest repair facility to have the flat
tire repaired or replaced as appropriate.
• Do not operate vehicle with more than one spare
wheel mounted.
For additional information, refer to page 273.
Wa r n i n g !
The spare wheel rim is for temporary use only. Use
for over a total of 12 000 miles (20 000 km) may
cause wheel rim failure leading to an accident and
possible injuries. The dimensions of the spare wheel are different
from those of road wheels. As a result, the vehicle
handling characteristics change when driving with
a mounted spare wheel.The spare wheel should only be used temporarily,
and replaced with a regular road wheel as quickly
as possible.

230 Tires, Wheels
Technical
data Instruments
and controlsOperation DrivingInstrument
cluster displayPractical hintsCar care Index
Changing wheelsMove vehicle to a level area which is a safe distance
from the roadway.
1. Firmly set parking brake, raise roll bar, and turn on
hazard warning f lasher.
2. Move selector lever to position “P”.
3. While engine is running, depress wheel change
switch for level control. The indicator lamp in the
sw it ch a n d t h e A D S m a l f u n c t i on i n d i c a to r l a mp l ig h t
up.
4. Turn off engine.
5. Prevent vehicle from rolling away by blocking
wheels with wheel chocks (not supplied with
vehicle) or sizable wood block or stone. When
changing a wheel on a hill, place chocks on the
downhill side blocking both wheels of the other
axl e. On a l evel road, pl ace one ch ock in front of a nd
one behind the wheel that is diagonally opposite to
the wheel being changed.
The jack is designed exclusively for jacking up the
veh icle at the jack tu bes bui lt into eith er si de of th e
vehicle. To help avoid personal injury, use the jack
only to lift the vehicle during a wheel change.
Never get beneath the vehicle while it is supported
by th e jack. Keep hands and feet away from the area
under the lifted vehicle. Always firmly set parking
brake and block wheels before raising vehicle with
jack.Do not disengage parking brake whi le th e vehic le is
raised. Be certain that the jack is always vertical
when in use, especially on hills. Always try to use
the jack on level surface. Be sure that the jack arm
is fully inserted in the jack tube. Always lower the
vehicle onto sufficient capacity jackstands before
working under the vehicle.Before working on the vehicle, e.g. when changing
wheels, the roll bar should be raised with the
switch, and the key be removed from the steering
lock, to prevent possible injury.

231 Tires, Wheels
Technical
data Instruments
and controlsOperation DrivingInstrument
cluster displayPractical hintsCar care Index 6. Using the wrench, loosen but do not yet remove the
wheel bolts. 7. Remove the protective cover from the jack support
tube opening by inserting the screwdriver in the
opening and prying it out.
The tube openings are located directly behind the
front wheel housings and in front of the rear wheel
housings.
P40.10-0375-26

232 Tires, Wheels
Technical
data Instruments
and controlsOperation DrivingInstrument
cluster displayPractical hintsCar care Index
8. Insert jack arm fully into the tube hole up to the
stop. Place jack on firm ground. Position the jack so
that it is always vertical (plumb-line) as seen from
the side (see arrow), especially if the vehicle is
parked on an incline.
9. Jack up the vehicle until the wheel is clear of the
ground. Never start engine while vehicle is raised.
10. Unscrew upper-most wheel bolt and install
alignment bolt (1) supplied in the tool kit. Remove
the remaining bolts. Keep bolt threads protected
from dirt and sand.11. Remove wheel. Grip wheel from the sides. Keep
hands from beneath the wheels.
12. Clean contact surfaces of wheel and wheel hub.
Install spare wheel on wheel hub. Insert wheel bolts
and tighten them slightly.
To avoid paint damage, place wheel f lat against hub
and hold it there while installing first wheel bolt.
Unscrew the alignment bolt (1) to install the last
wheel bolt.

233 Tires, Wheels
Technical
data Instruments
and controlsOperation DrivingInstrument
cluster displayPractical hintsCar care Index 13. Lower vehicle. Remove jack and insert jack tube
cover.
Before storing the jack, the jack arm must be
lowered almost to the base of the jack.
Store the spare wheel first and then the vehicle jack.
14. Using the wrench, tighten the five bolts evenly,
following the sequence illustrated, until all bolts are
tight.
Observe a tightening torque of 80 ft.lb. (110 Nm).
15. Ensure proper tire pressure.
16. Depress wheel change switch for level control. The
indicator lamp in the switch and the ADS
malfunction indicator lamp will go out.
Wa r n i n g !
Always replace wheel bolts that are damaged or
rusted.Never apply oil or grease to wheel bolts.Damaged wheel hub threads should be repaired
immediately.Incorrect mounting bolts or improperly tightened
mounting bolts can cause the wheel to come off.
This could cause an accident. Be sure to use the
correct mounting bolts.

234 Tires, Wheels
Technical
data Instruments
and controlsOperation DrivingInstrument
cluster displayPractical hintsCar care Index
Tire inflation pressure
A table (see fuel filler flap) lists the tire inflation
pressures specified for Mercedes-Benz recommended
tires as well as for the varying operating conditions.
Important!
Tire pressure changes by approx. 1.5 psi (0.1 bar) per
18°F (10°C) of air temperature change. Keep this in
mind when checking tire pressure inside a garage -
especially in the winter.
Example:
If garage temperature = approx. +68°F (+20°C) and
ambient temperature = approx. +32°F (0°C) then the
adjusted air pressure = specified air pressure +3psi
(+0.2 bar).
Tire pressures listed for light loads are minimum values
offering high driving comfort. Increased inflation
pressures for heavy loads produce favorable handling
characteristics with lighter loads and are perfectly
permissible. The ride of the vehicle, however, will
become somewhat harder.
Tire temperature and pressure increase with the vehicle
speed. Tire pressure should therefore only be checked
and corrected on cold tires. Correct tire pressure in
Wa r n i n g !
Do not drive the vehicle while the wheel change
switch is activated since the vehicle suspension
will not function properly.Wa r n i n g !
The spare wheel rim is for temporary use only. Use
for over a total of 12 000 miles (20 000 km) may
cause wheel rim failure leading to an accident and
possible injuries. Vehicles with Sport Package:
The dimensions of the spare wheel are different
from those of road wheels. As a result, the vehicle
handling characteristics change when driving with
a mounted spare wheel.The spare wheel should only be used temporarily,
and replaced with a regular road wheel as quickly
as possible.