445 Practical hints
Replacing bulbs
2Bulb socket for high beam head-
lamp/high beam flasher bulb
3Bulb socket for parking and standing
lamp bulb
4Bulb socket for low beam headlamp
bulb (halogen headlamps only)
5Bulb socket for turn signal lamp bulb
Before you start to replace a bulb for a
front lamp, do the following first:
Turn the exterior lamp switch to
positionM (
page 141).
Open the hood (
page 324).Low beam bulb (halogen headlamps
only)
Turn housing cover1 counterclock-
wise and remove it.
Turn bulb socket4 with the bulb
counterclockwise and remove it.
Pull the bulb out of bulb socket4.
Press the new bulb gently into bulb
socket4.
Place bulb socket5 back into the
lamp and turn it clockwise until it en-
gages.
Align housing cover1 and turn it
clockwise until it engages.High beam bulb/high beam flasher
bulb (halogen headlamps)/high beam
flasher bulb (Bi-Xenon* headlamps)
Turn bulb socket2 with the bulb
counterclockwise and remove it.
Pull the bulb out of bulb socket2.
Press the new bulb gently into bulb
socket2.
Place bulb socket2 back into the
lamp and turn it clockwise until it en-
gages.
448 Practical hintsReplacing wiper blades
Placing front wiper arms in vertical po-sitionWiper blades in vertical positionVehicles with SmartKey
Turn SmartKey to starter switch
position1 (
page 37).
Turn combination switch to wiper
settingu (
page 57).
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 (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.Warning!
G
Wiper blades are components that are sub-
ject to wear and tear. Change 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 for-
ward when in the vertical position.
Never open the hood when the 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.
Make sure the wiper blades are properly in-
stalled. 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.
467 Practical hints
Jump starting
The jump-start contacts are located in the
engine compartment.
Make sure the two vehicles do not
touch.
Turn off all electrical consumers.
Apply the parking brake (
page 62).
Make sure the gear selector lever is set
to positionP.
Open the hood (
page 324).1Negative (-) terminal
2Cover of positive (+) terminal
Open cover of the positive terminal.
Connect positive terminal 2 and the
positive terminal of the charged battery
with the jumper cable. Clamp cable to
charged battery first.
Start engine of the vehicle with the
charged battery and run at idle speed.
Connect negative terminal1 and the
negative terminal of the charged
battery with the second jumper cable.
Clamp cable to charged battery first.
Start the engine of the disabled
vehicle.
You can now turn on the electrical con-
sumers. Do not switch on the headlamps
under any circumstances.
Remove the jumper cables first from
negative terminals on each battery and
then from the positive terminals on
each battery.
You can now switch on the headlamps.
Have the battery checked at the near-
est authorized Mercedes-Benz Center.
Warning!
G
Keep flames or sparks away from battery.
Do not smoke.
Observe all safety instructions and precau-
tions when handling automotive batteries
(page 330).
!
Never invert the terminal connections!
