key MERCEDES-BENZ SL55AMG 2004 R230 Owners Manual

327 Practical hints
Locking/unlocking in an emergency
1Separately unlock storage compart-
ments
2Centrally lock/unlock storage com-
partments
3Separately lock storage compartments
Slide mechanical key out of SmartKey
housing (
page 325).

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 105).

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.


328 Practical hintsLocking/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 185).

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.


329 Practical hints
Locking/unlocking in an emergency

Remove mechanical key (
page 325).

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.


330 Practical hintsLocking/unlocking in an emergency
Remove mechanical key (
page 325).

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.


337 Practical hints
Replacing wiper blades
Replacing wiper blades
Removing wiper blades
Turn SmartKey in starter switch to
position1.

Turn combination switch to wiper
settingII (
page 47).

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, remove SmartKey from
starter switch before replacing a wiper
blade. Otherwise the motor could suddenly
turn on and cause injury.

339 Practical hints
Flat tire
Flat tire
Your SL 55 AMG may be equipped with a
TIREFIT kit.
You can identify which TIREFIT kit
(SL 55 AMG only) you have as follows:

The TIREFIT container of kit 1 is a
squeeze container.
For information on sealing a damaged
tire with TIREFIT kit 1, see
(page 340).


The TIREFIT container of kit 2 is a rigid
container.
For information on sealing a damaged
tire with TIREFIT kit 2, see
(page 345).
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 53).

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

Turn off the engine by pressing the
KEYLESS-GO* button on the gear se-
lector lever once (
page 54).

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. iOpen door only when conditions are
safe to do so.

343 Practical hints
Flat tire
1Flap
2Air hose with pressure gauge and vent
screw
3Union nut
4Electrical plug
Open flap 1 on air pump.

Pull out electrical plug 4 and air hose
with the pressure gauge 2.

Screw air hose 2 onto the tire valve.

Insert electrical plug 4 into vehicle ci-
gar lighter socket.

Turn the SmartKey in the ignition to po-
sition 1 (
page 31).
or

Press the KEYLESS-GO* start/stop
button on the gear selector lever once.
Do not depress brake pedal.

Press I on the electric air pump switch.
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 and the union nut can become hot
during inflation. Please exercise appropri-
ate caution.

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

Inflate the tire again.

Press 0 on the electric air pump switch.

Turn the SmartKey in the ignition to
position0.
or

Press KEYLESS-GO* start/stop button
on the gear selector lever twice. Do not
depress brake pedal.
The electric air pump should now be
switched off.!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.


347 Practical hints
Flat 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 31).
or

Press the KEYLESS-GO* start/stop
button (
page 33) 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 pressure is not attained, turn
off the electric air pump, detach the fill-
er hose from the tire valve, and drive
vehicle back and forth very slowly ap-
proximately 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.


348 Practical hintsFlat tire
After attaining a tire 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 31).
or

Press the KEYLESS-GO* start/stop
button (
page 33) 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 pressure of 26 psi (1.8 bar) is not at-
tained, 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.


355 Practical hints
Flat tire

Turn the SmartKey in the starter switch
to position1.
or

Press the KEYLESS-GO* start/stop
button on the gear selector lever once
without depressing the brake pedal.

Press I on the electric air pump switch.
The electric air pump should now
switch on and inflate the tire.

Inflate the tire to approx. 36 psi
(2.5 bar).
This takes about five minutes for the
spare tire. Air hose 2 and union
nut3 can become hot duration infla-
tion. Exercise proper caution to avoid
burning yourself when using the equip-
ment.

Press 0 on the electric air pump switch.

Turn the SmartKey in the starter switch
to position0.
or

Press KEYLESS-GO* start/stop button
on the gear selector lever twice without
depressing the brake pedal.
The electric air pump should now be
switched off.

If the tire pressure is above 36 psi
(2.5 bar), release excess tire pressure
using the vent screw.!Do not operate the air pump longer
than eight minutes without interrup-
tion. Otherwise it may overheat.
You may operate the air pump again af-
ter it has cooled off.
Warning!
G
Follow recommend inflation pressures.
Do not overinflate tires. Overinflating tires
can result in sudden deflation (blowout) be-
cause they are more likely to become punc-
tured or damaged by road debris, potholes,
etc.
Do not underinflate tires. Underinflated tires
wear unevenly, adversely affect handling
and fuel economy, and are more likely to fail
from being overheated.