2005 MERCEDES-BENZ SLK CLASS Owners Manual

377 Practical hints
Opening/closing in an emergency
Opening/closing in an emergency
Raising retractable hardtop manuallyWarning!
G
If the retractable hardtop does not com-
pletely open or close, the roof hydraulics will
lose pressure and the retractable hardtop is
lowered

after approximately seven minutes
when the ignition is switched on


after approximately 15 seconds when
the ignition is switched off
Shortly before the hardtop is lowered, a
warning will sound. In the multifunction dis-
play you will see
K
and the message
Retractable roof being lowered
.


Properly lock retractable hardtop before
continuing to drive (
page 237).
Warning!
G
Manually closing the retractable hardtop is a
complicated and technically demanding pro-
cedure and should only be performed by an
authorized Mercedes-Benz Center or quali-
fied technician. Attempting to manually
close the retractable hardtop may cause
damage to the retractable hardtop and/or
personal injury.
Warning!
G
To prevent possible accidents, drive the ve-
hicle only with the retractable hardtop either
completely closed and locked, or fully low-
ered into its storage compartment.

378 Practical hintsReplacing SmartKey batteriesIf the batteries in the SmartKey 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.Warning!
G
Keep the batteries out of reach of children.
If a battery is swallowed, seek medical help
immediately.
iWhen inserting the batteries, make
sure they are clean and free of lint.
When replacing batteries, always re-
place both batteries.
The required replacement batteries are
available at any Mercedes-Benz
Center.

379 Practical hints
Replacing SmartKey batteries
SmartKey
Replacement batteries: Lithium, type
CR 2025 or equivalent.
Remove the mechanical key
(page 374).
1Mechanical key
2Battery compartment

Insert mechanical key1 in side open-
ing and push gray slide.
Battery compartment2 is unlatched.

Pull battery compartment2 out of the
housing in direction of arrow.

Remove the discharged batteries.
3Battery
4Contact spring

Using a lint-free cloth, insert new
batteries3 under contact spring4
with the plus (+) side facing up.

Return battery compartment2 into
the housing until it engages.

Slide mechanical key1 back into the
SmartKey.

Check the operation of the SmartKey.

380 Practical hintsReplacing bulbsSafe vehicle operation depends on proper
exterior lighting and signaling. It is there-
fore essential that all bulbs and lamp as-
semblies are in good working order at all
times.
Correct headlamp adjustment is extremely
important. Have headlamps checked and
readjusted at regular intervals and when a
bulb has been replaced. See an authorized
Mercedes-Benz Center for headlamp ad-
justment.
Bulbs
iIf the headlamps are fogged up on the
inside as a result of high humidity,
driving the vehicle a short distance with
the lights on should clear up the
fogging.iBackup bulbs will be brought into use
when lamps malfunction. Observe the
messages in the multifunction display
(page 363).

381 Practical hints
Replacing bulbs
Front lamps Rear lamps
Lamp
Type
1
Additional turn signal
lamp
LED
2
Turn signal lamp
PY 21 W
3
Halogen headlamp:
Low beam
Bi-Xenon* headlamp:
Low and high beam
1
1Vehicles with Bi-Xenon* headlamps: Low beam
and high beam use the same D2S-35W lamp. Do
not replace the Bi-Xenon* bulbs yourself. See an
authorized Mercedes-Benz Center.
H7 (55 W)
D2S-35W
4
Front fog lamp
HB4 (51 W)
5
Parking and standing
lamp
W5W
6
Halogen headlamp:
High beam/high beam
flasher
Bi-Xenon* headlamp:
High beam flasher
H7 (55 W)
H7 (55 W)
7
Side marker lamp
W5W
Lamp
Type
8
Rear fog lamp (driver’s
side only)
P21W
9
High mounted brake
lamp
LED
a
Tail, parking, standing,
side marker lamp and
brake lamp
LED
b
License plate lamps
C5W
c
Backup lamp
P21W
d
Turn signal lamp
P21W
iVehicles equipped with cornering fog
lamps*:
Front fog lamps use H7 (55 W) 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.

382 Practical hintsReplacing bulbsNotes on bulb replacement

Only use 12-volt bulbs of the same type
and with the specified watt rating.


Switch 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:


Additional turn signal lamps in the
exterior rear view mirrors


Bi-Xenon* lamps


Front fog lamps


High mounted brake lamp


Brake lamps


Front and rear side marker lamps


Parking/standing lamps in the tail
lamp assemblies
Replacing 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
positionM (
page 106).

Open the hood (
page 287) (except
for side marker lamps).
iHave the headlamp adjustment
checked regularly.

383 Practical hints
Replacing bulbs
1Housing cover for low beam (halogen
headlamps only)
Housing cover for Bi-Xenon* head-
lamps. Do not remove.
2Bulb socket for turn signal lamp
3Bulb socket for high beam/high beam
flasher lamp
4Bulb socket for parking and standing
light lamp
5Bulb socket for low beam bulb (Halo-
gen headlamps only)Low beam bulb (Halogen headlamps
only)

Turn housing cover1 counterclock-
wise and remove.

Turn bulb socket5 with the bulb
counterclockwise and remove.

Pull the bulb out of bulb socket5.

Press the new bulb into bulb socket5.

Place bulb socket5 back into the
lamp and turn it clockwise.

Reinstall housing cover1.
Warning!
G
Do not remove the cover1 for the Bi-Xe-
non* headlamp. Because of high voltage in
Bi-Xenon lamps, it is dangerous to replace
the bulb or repair the lamp and its compo-
nents. We recommend that you have such
work done by a qualified technician.

384 Practical hintsReplacing bulbsHigh beam/high beam flasher bulb
(Halogen headlamps) / High beam
flasher bulb (Bi-Xenon* headlamps)
Turn bulb socket3 with the bulb
counterclockwise and remove.

Pull the bulb out of bulb socket3.

Press the new bulb into bulb socket3.

Place bulb socket3 back into the
lamp and turn it clockwise.Front turn signal bulb

Turn bulb socket2 with the bulb
counterclockwise and remove.

Press gently onto the bulb and turn it
counterclockwise out of bulb
socket2.

Press the new bulb gently into bulb
socket2 and turn it clockwise.

Place bulb socket2 back into the
lamp and turn it clockwise.
Parking and standing lamp bulb

Turn bulb socket4 with the bulb
counterclockwise and remove.

Pull the bulb out of bulb socket4.

Press the new bulb into bulb socket4.

Place bulb socket4 back into the
lamp and turn it clockwise.
Replacing bulbs for rear lamps
Before you start to replace a bulb for a rear
lamp, do the following first:
Turn the exterior lamp switch to
positionM (
page 106).

Open the trunk lid (
page 95).
Tail lamp unit
1Bulb socket for rear fog lamp (driver’s
side only)
2Bulb socket for turn signal lamp
3Bulb socket for backup lamp