2005 MERCEDES-BENZ SL500 Smart key

376 Practical hintsLocking/unlocking in an emergency1Separately unlock storage compart-
ments
2Centrally lock/unlock storage com-
partments
3Separately lock storage compartments
Slide mechanical key out of SmartKey
housing (
page 374).

Insert the mechanical key into the
glove box lock and turn it to
position2.
All storage compartments are now un-
locked.
Locking the vehicle
If you are unable to lock the vehicle with
the SmartKey, lock it with the mechanical
key as follows:
Close the passenger door and the trunk
lid.

Press the central locking switch in the
center console (
page 110).

Check to see whether the locking knob
on the passenger door is still visible. If
necessary push it down manually.

Slide the mechanical key out of the
SmartKey.

Lock the driver’s door with the me-
chanical key.
Lowering the load assist manually
If the load assist feature does not fully low-
er the retractable hardtop into the trunk
compartment and you are unable to close
the trunk lid, follow the instructions below.
1Hex-socket wrench
2Locking screw
Remove the trunk floor from the trunk.

Lift up the lid located at the lower left
side of the trunk.

Have a second person lift and hold the
retracted hardtop.

377 Practical hints
Locking/unlocking in an emergency

Using the hex-socket wrench provided
in the vehicle tool kit, carefully turn the
locking screw 2 approximately one
quarter turn.

Hook luggage cover into holders
(page 197).

Let go of the hardtop.
It should gradually lower into the trunk.

When top is completely lowered, return
locking screw 2 to its original posi-
tion.

Close the lid.

Replace the trunk floor.

Visit an authorized Mercedes-Benz
Center as soon as possible.Replacing batteries in the SmartKey/
SmartKey with KEYLESS-GO*
If the batteries in the SmartKey or the
SmartKey with KEYLESS-GO* are dis-
charged, the vehicle can no longer be
locked or unlocked. It is recommended to
have the batteries replaced at an autho-
rized Mercedes-Benz Center.
Batteries contain materials that can harm
the environment if disposed of improperly.
Recycling of batteries is the preferred
method of disposal. Many states require
sellers of batteries to accept old batteries
for recycling.SmartKey
1Mechanical key
2Battery compartment
Replacement batteries: Lithium, type
CR 2025 or equivalent.
!Do not overtighten the screw.
Warning!
G
Keep the batteries out of reach of children.
If a battery is swallowed, seek medical help
immediately.
iWhen replacing batteries, always re-
place both batteries. The required re-
placement batteries are available at
any Mercedes-Benz Center.

378 Practical hintsLocking/unlocking in an emergency
Remove mechanical key (
page 374).

Insert the mechanical key1in side
opening and push gray slide.
The battery compartment is unlatched.

Pull battery compartment2out of the
SmartKey housing in direction of ar-
row.

Remove the batteries.
3Battery
4Contact spring

Using a lint-free cloth, insert new bat-
teries under the contact spring with the
plus (+) side facing up.

Return battery compartment into hous-
ing until it locks into place.SmartKey with KEYLESS-GO*
1Battery
2Tilt battery up
3Mechanical key
Replacement batteries: Lithium, type
CR 2025 or equivalent.
iThe required replacement batteries are
available at any Mercedes-Benz
Center.

379 Practical hints
Locking/unlocking in an emergency

Remove mechanical key (
page 374).

Insert the mechanical key in side open-
ing and push gray slide.
The battery compartment is unlatched.

Pull the battery compartment out of the
SmartKey housing.

Using mechanical key3, apply pres-
sure to position 2.
Battery 1 tilts up slightly.

Pull battery 1 out in direction of ar-
row.

Using a lint-free cloth, insert new bat-
teries under the contact spring with the
plus (+) side facing up.

Return battery compartment into hous-
ing until it locks into place.

386 Practical hintsReplacing wiper blades
Removing wiper blades
Turn SmartKey in starter switch to
position1.

Turn combination switch to wiper
settingII (
page 53).

With wiper arms in the vertical position,
turn SmartKey in starter switch to
position0.

Fold the wiper arm forward until it
snaps into place.

Turn wiper blade at a right angle to the
wiper arm.

Slide the wiper blade sideways out of
the retainer.
!To avoid damage to the hood, the wiper
arms should only be folded forward
when in the vertical position.
Warning!
G
For safety reasons, switch off wipers and re-
move SmartKey from starter switch (vehi-
cles with KEYLESS-GO*: Make sure the
vehicle’s on-board electronics have
status0) before replacing a wiper blade.
Otherwise the wiper motor could suddenly
turn on and cause injury.

388 Practical hintsFlat tireYour SL 65 AMG is be equipped with a
TIREFIT kit.Preparing the vehicle
Park the vehicle as far as possible from
moving traffic on a hard surface.

Turn on the hazard warning flashers.

Turn the steering wheel so that the
front wheels are in a straight ahead po-
sition.

Set the parking brake.

Move the gear selector lever to P.
Vehicles with SmartKey:

Turn off the engine (
page 58).

Remove the SmartKey from the starter
switch.Vehicles with KEYLESS-GO*:

Turn off the engine by pressing the
KEYLESS-GO* button on the gear se-
lector lever once (
page 59).

Open the driver’s door (this puts the
starter switch in position 0, same as
with the SmartKey removed from the
starter switch). The driver’s door then
can be closed again.

Have any passenger exit the vehicle at
a safe distance from the roadway.
Sealing tires with TIREFIT
Small tire punctures, particularly those in
the tread, can be sealed with TIREFIT.
TIREFIT can be used in ambient tempera-
tures down to -4°F (-20°C).
iOpen door only when conditions are
safe to do so.
Warning!
G
Keep TIREFIT away from sparks, open flame
or heat source.
Do not smoke.

390 Practical hintsFlat tire
Screw the air pump’s air hose5 onto
flange6 of the TIREFIT container.

Stick TIREFIT container1 upside
down into notch3 of the electric air
pump.
7Tire valve
8Electric air pump switch
9Air hose with pressure gauge and vent
screw
aFiller hose

Unscrew the valve cap from tire
valve7.

Screw filler hosea onto tire valve7.

Insert electrical plug4 into vehicle
cigarette lighter socket.

Turn the SmartKey in the starter switch
to position1 (
page 36).
or

Press the KEYLESS-GO* start/stop
button (
page 37) on the gear selec-
tor lever once. Do not depress brake
pedal.

Press I on electric air pump switch8.
The electric air pump should now
switch on and inflate the tire.After 5 minutes, the pressure gauge must
display at least 26 psi (1.8 bar). The air
hose can become hot during inflation.
Please exercise appropriate caution.

If this tire inflation pressure is not at-
tained, turn off the electric air pump,
detach the filler hose from the tire
valve, and drive vehicle back and forth
very slowly approximately 30 ft (10 m).
This serves to better distribute the
TIREFIT sealant material inside the tire.

Unscrew the air pump’s air hose5
from flange6 of the TIREFIT contain-
er.

Screw air hose5onto tire valve7.

Inflate the tire again.
Warning!
G
Observe safety instructions on air pump la-
bel.
!Do not operate the electric air pump
longer than eight minutes without in-
terruption. Otherwise it may overheat.
You may operate the air pump again af-
ter it has cooled off.


391 Practical hints
Flat tire

After attaining a tire inflation pressure
of 26 psi (1.8 bar), press 0 on electric
air pump switch8.
The electric air pump should now be
switched off.

Turn the SmartKey in the ignition to
position0 (
page 36).
or

Press the KEYLESS-GO* start/stop
button (
page 37) on the gear selec-
tor lever twice. Do not depress brake
pedal.

Detach the electric air pump.
The air hose may still be hot. Please ex-
ercise appropriate caution.

Store the electrical plug and the air
hose behind the flap and place the air
pump back in the trunk.

Close the trunk lid.

Drive away immediately.
The TIREFIT sealant will distribute itself
evenly inside the tire.
Warning!
G
If a tire inflation pressure of 26 psi (1.8 bar)
is not attained, tire is too severely damaged
for TIREFIT to provide a reliable tire repair.
In this case, TIREFIT cannot properly seal
the tire.
Do not drive the vehicle.
Contact the nearest Mercedes-Benz Center
or call Roadside Assistance.
Warning!
G
Do not exceed vehicle speed of
50 mph (80 km / h). A TIREFIT repair is not
designed to operate at higher speeds.
The sticker must be attached on the instru-
ment cluster where it will be easily seen by
the driver.
Vehicle handling characteristics may
change. Adapt your driving accordingly.