2008 MERCEDES-BENZ SL65AMG Owner's Manual

408 Practical hints
Replacing SmartKey batteries
3Batteries
4Contact spring
Pull out batteries3.
Using a lint-free cloth, insert new
batteries 3 under contact springs 4
with the positive terminal (+) side
facing up.
Return battery compartment 2 into
housing until it locks into place.
Slide mechanical key 1 back into
SmartKey or SmartKey with
KEYLESS-GO*.
Check the operation of the SmartKey
or SmartKey with KEYLESS-GO* as well
as the KEYLESS-GO* function.


409 Practical hints
Replacing bulbs
Replacing bulbs
Bulbs
Safe vehicle operation depends on proper
exterior lighting and signaling. It is there-
fore essential that all bulbs and lamp
assemblies 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
adjustment.
Warning!G
Bulbs and bulb sockets can be very hot.
Allow the lamp to cool down before chang-
ing 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.
iIf the headlamps or front fog lamps are
fogged up on the inside as a result of high
humidity, driving the vehicle a distance with
the lights on should clear up the fogging.
iAuxiliary bulbs will be brought into use when
the following lamps malfunction:

Turn signal lamps

Brake lamps

Parking lamps

Tail lamps
Observe the messages in the multifunction
display (
page 359).

410 Practical hints
Replacing bulbs
Front lamps Rear lamps
LampType
1 Additional turn signalLED
2Turn signal lamp1156 NA
3Low beam1,2
1Vehicles with Bi-Xenon* headlamps: Low beam
and high beam use the same D2S-35W lamp.
2Vehicles with Bi-Xenon* headlamps: Do not
replace the Xenon and Bi-Xenon* bulbs yourself.
Contact an authorized Mercedes-Benz Center.
D2S-35W
4Xenon headlamp:
High beam, high beam
flasherH7 (55 W)
Bi-Xenon headlamp*:
High beam flasherH7 (55 W)
Parking and standing
lampW 5 W
5Front fog lamp,
Corner-illuminating
front fog lamp*H11 (55 W)
6Side marker lampW 5 W
LampType
7 Rear fog lamp
(driver’s side only)P 21 W
8 High mounted brake
lampLED
9 Backup lampP 21 W
a Tail, parking and
standing lamp, side
marker lampLED
b Brake lampLED
c License plate lampC 5 W
d Turn signal lampPY 21 W

411 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
exterior 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
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
position M (
page 131).
Open the hood (page 282).
1Bulb socket for turn signal lamp
2High beam headlamp cover
3Low beam headlamp cover (Xenon or
Bi-Xenon* lamp). Do not remove.
!Do not replace the LEDs yourself. You could
otherwise damage the LEDs or parts of the
vehicle. Only have the LEDs replaced by an
authorized Mercedes-Benz Center.

412 Practical hints
Replacing bulbs
4High beam bulbs
5Locking mechanism
6Parking and standing lampsFront turn signal bulb
Turn bulb socket 1 (page 411)
counterclockwise and pull it out.
Push the bulb into socket 1, turn
socket 1 counterclockwise and
remove it.
Insert the new bulb in bulb socket 1,
push and turn bulb socket 1 clock-
wise.
Reinsert bulb socket 1 in lamp hous-
ing and turn bulb socket 1 clockwise.High beam/high beam flasher bulbs
Press ends of headlamp cover tab
together and remove high beam head-
lamp cover 2 (
page 411).
Pull the electrical connector off.
Turn locking mechanism 5 counter-
clockwise and take out the bulb.
Insert the new bulb so that the base
locates in the recess on the holder.
Turn locking mechanism 5 clockwise.
Plug the connector onto the bulb.
Align high beam headlamp cover 2
and click it into place.Warning!G
Do not remove the cover for the Xenon or
Bi-Xenon* headlamp. Because of high
voltage in Xenon and Bi-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.

413 Practical hints
Replacing bulbs
Parking and standing lamp bulbs
Press ends of headlamp cover tab
together and remove high beam
headlamp cover 2.
Pull out bulb socket 6 with the bulb.
Pull the bulb out of bulb socket 6.
Insert a new bulb in bulb socket 6.
Reinstall bulb socket 6.
Align high beam headlamp cover 2
and click it into place.Additional turn signal lamp bulbs
The additional turn signal lamps in the
exterior rear view mirrors have LEDs.
If a malfunction occurs or LEDs fail to func-
tion, the entire turn signal unit must be re-
placed. Have the turn signal unit replaced
by an authorized Mercedes-Benz Center.Front side marker lamp bulbs
Since replacing the side marker lamp bulbs
is a technically highly demanding process,
we recommend you have the side marker
lamp bulbs replaced by an authorized
Mercedes-Benz Center.

414 Practical hints
Replacing bulbs
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
position M (
page 131).
Open the trunk (page 114).
Tail lamp unit
1Backup lamp
2Driver’s side: Rear fog lamp
Passenger’s side: Substitute lamp
3Turn signal lamp
Fold the trim to the side and remove it.
Turn the bulb socket counterclockwise
and pull it out.
Gently push the bulb into the socket,
turn it counterclockwise and remove it.
Insert the new bulb and reinstall the
bulb socket.
The bulb socket should audibly click
into place.
Reinstall the trim.License plate lamp
1Screws
Loosen both screws 1.
Remove the license plate lamp.
Replace the bulb.
Reinstall the license plate lamp.
Retighten screws 1.

415 Practical hints
Replacing wiper blades
Replacing wiper blades
Placing wiper arms in vertical position
Wiper blades in vertical position
Vehicles with SmartKey
Turn SmartKey to starter switch
position1 (
page 40).
Turn combination switch to wiper
settingII (
page 58).
With wiper arms in the vertical position,
turn SmartKey in starter switch to
position0.
Remove SmartKey from starter switch.
Warning!G
For safety reasons, switch off wipers and re-
move SmartKey from starter switch
(vehicles 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.
Warning!G
Wiper blades are components that are sub-
ject to wear and tear. Replace the wiper
blades twice a year, preferably in the spring
and fall. Otherwise the windows will not be
properly wiped. As a result, you may not be
able to observe surrounding traffic condi-
tions and could cause an accident.
!To avoid damage to the hood:

The wiper arms should only be folded
forward when in the vertical position.

Never open the hood when a wiper arm is
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 wind-
shield.
Do not allow the wiper arms to contact the wind-
shield glass without a wiper blade inserted.
For your convenience, we recommend that you
have this work carried out by an authorized
Mercedes-Benz Center.