Page 383 of 480
382 Practical hintsWhat to do if …Left display
Right display
Possible cause/consequence
Possible solution
Ê
Close
trunk lid
This message will appear whenever
the trunk lid is open.
Close the trunk lid.
M
Close
trunk partition
You are trying to open or close the
retractable hardtop even though
the luggage cover in the trunk is not
pulled out.
Pull out the luggage cover and secure it
(page 196).
W
Washer fluid
Check level
The fluid level has dropped to about 1/3 of total reservoir capacity.
Add washer fluid (
page 280).
Warning!
G
Do not spill antifreeze on hot engine parts.
Antifreeze contains ethylene glycol which
may ignite when if it comes into contact with
hot engine parts. You could be seriously
burned.
Page 390 of 480

389 Practical hints
Replacing SmartKey batteries
Replacing SmartKey batteries
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
Replacement batteries: Lithium, type
CR 2025 or equivalent.
Remove mechanical key1
(page 385).
1Mechanical key
2Slide
3Battery compartment
Insert mechanical key1in direction
of arrow into side opening.
Using mechanical key1, push gray
slide2to unlatch battery compart-
ment 3.
Pull battery compartment3out of the
housing in direction of arrow.
Remove the batteries in direction of ar-
row.
4Battery
5Contact spring
Using a lint-free cloth, insert new bat-
teries 4 under contact spring 5 with
the positive terminal (+) facing up.
Return battery compartment 3 into
housing until it locks into place.
Slide mechanical key 1 back into the
SmartKey.
Check the operation of the SmartKey.
Warning!
G
Keep the batteries out of reach of children.
If a battery is swallowed, seek medical help
immediately.iWhen inserting batteries, make sure
they are clean and free of lint.
Page 394 of 480

393 Practical hints
Replacing bulbs
Notes on bulb replacement
Only use 12-volt bulbs of the same type
and with the specified watt rating.
Switch the lights off before changing a
bulb to prevent short circuits.
Always use a clean lint-free cloth when
handling bulbs.
Your hands should be dry and free of oil
and grease.
If the newly installed bulb does not
come on, visit an authorized
Mercedes-Benz Center.Have the LEDs and bulbs for the following
lamps replaced by an authorized
Mercedes-Benz Center:
the additional turn signals in the exteri-
or rear view mirrors
the high mounted brake lamp
the brake lamps
the parking lamps and the side marker
lamps in the tail lamp unit
the rear fog lamps
the low beam (Xenon or Bi-Xenon*)
lamps
the front fog lamps
the front side marker lamps
Warning!
G
Bulbs and bulb sockets can be very hot. Al-
low the lamp to cool down before changing
a bulb.
Keep bulbs out of reach of children.
Halogen lamps contain pressurized gas. A
bulb can explode if you:
touch or move it when hot
drop the bulb
scratch the bulb
Wear eye and hand protection.
Because of high voltage in Xenon lamps, it is
dangerous to replace the bulb or repair the
lamp and its components. We recommend
that you have such work done by a qualified
technician.
iHave the headlamp adjustment
checked regularly.
Page 395 of 480
394 Practical hintsReplacing bulbsReplacing bulbs for front lamps
Before you start to replace a bulb for a
front lamp, do the following first:
Turn the exterior lamp switch to posi-
tion M (
page 123).
Open the hood (
page 272).
1Bulb socket for turn signal lamp
2High beam headlamp cover
3Low beam headlamp cover (Xenon or
Bi-Xenon* lamp). Do not remove.4High beam bulbs
5Locking mechanism
6Parking and standing lampsFront turn signal bulb
Turn bulb socket 1 counterclockwise
and pull it out.
Push the bulb into socket 1, turn
socket 1 counterclockwise and re-
move it.
Insert the new bulb in socket 1, push
and turn bulb socket 1 clockwise.
Reinsert bulb socket 1 in lamp and
turn bulb socket 1 clockwise.
Warning!
G
Do not remove the cover for the Xenon or
Bi-Xenon* headlamp. Because of high volt-
age in Xenon and Bi-Xenon* lamps, it is dan-
gerous to replace the bulb or repair the lamp
and its components. We recommend that
you have such work done by a qualified
technician.
Page 398 of 480

397 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 54).
With wiper arms in the vertical position,
turn SmartKey in starter switch to
position0.
!Never open the hood when the wiper
arms are folded forward.
Hold on to the wiper when folding the
wiper arm back. If released, the force
of the impact from the tensioning
spring could crack the windshield.
Do not allow the wiper arms to contact
the windshield glass without a wiper
blade inserted.
Make sure the wiper blades are proper-
ly installed. Improperly installed wiper
blades may cause windshield damage.
For your convenience, we recommend
that you have this work carried out by
an authorized Mercedes-Benz Center.
!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.
Page 400 of 480

399 Practical hints
Flat tire
Flat tire
Your SL 55 AMG with Performance
Package* and SL 65 AMG are equipped
with a TIREFIT kit.Preparing the vehicle
Park the vehicle in a safe distance from
moving traffic on a hard, flat surface
when possible.
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 60).
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 60).
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.
iSL 55 AMG with Performance
Package* and SL 65 AMG only.Warning!
G
Keep TIREFIT away from sparks, open flame
or heat source.
Do not smoke.
Page 401 of 480

400 Practical hintsFlat tire
Foreign objects (e.g. screws or nails)
should not be removed from the tire.
Take TIREFIT, the sticker, and the elec-
tric air pump out of the trunk.
Attach the sticker where it will be easily
seen by the driver on the instrument
cluster.1TIREFIT container
2Flap
3Notch
4Electrical plug
5Air hose
6Flange
Open flap2 on the electric air pump.
Pull plug4 and air hose5 out of the
pump housing.
Warning!
G
TIREFIT is a limited repair device. TIREFIT
cannot be used for cuts or punctures larger
than approx. 0.16 in (4 mm) and tire dam-
age caused by driving with extremely low
tire inflation pressure, or on a flat tire, or a
damaged wheel.
Do not drive the vehicle under such circum-
stances.
Contact your nearest Mercedes-Benz
Center for assistance or call Roadside
Assistance.
Warning!
G
Take care not to allow the contents of
TIREFIT to come in contact with hair, eyes or
clothing. TIREFIT is harmful if inhaled, swal-
lowed or absorbed through the skin - causes
skin, eye and respiratory irritation.
Any contact with eyes or skin should be
flushed immediately with plenty of water.
If clothing comes in contact with TIREFIT,
change clothing as soon as possible.
In case of allergic reaction or rash, consult a
physician immediately.Warning!
G
Keep TIREFIT out of reach of children.
If swallowed, rinse mouth immediately with
plenty of water and drink plenty of water.
Do not induce vomiting!
Consult a physician immediately.
Keep away from open flame or heat source.
iIf sealant has leaked out, let it dry. You
can then peel it off.
Page 402 of 480

401 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 36).
or
Press the KEYLESS-GO* start/stop
button (
page 37) on the gear selec-
tor lever once. Do not depress brake
pedal.
PressI 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 8 minutes without interrup-
tion. Otherwise it may overheat.
You may operate the air pump again af-
ter it has cooled off.