Page 132 of 417

131 Controls in detail
Control system
Setting daytime running lamp mode
(USA only)
Move the selection marker with button
æ or ç to the
Lighting
sub-
menu.
Press button j or k repeatedly
until you see this message in the left
display:
Light circuit Headlamp
mode
.
The selection marker is on the current
setting.
Press buttonæ orç to select
manual operation (
Manual
) or daytime
running lamp mode (
Constant
)
activated.
With daytime running lamp mode activated
and the exterior lamp switch in
positionM orU, the low beam
headlamps are switched on when the
engine is running.
In low ambient light conditions the
following lamps will switch on additionally:
Parking lamps
Tail lamps
License plate lamps
Side marker lampsFor more information on the daytime
running lamp mode, see “Daytime running
lamp mode” (
page 107).
iThis function is not available in
countries where the daytime running
lamp mode is mandatory and therefore
in a constant mode.
iIf you turn the exterior lamp switch to
another position, the corresponding
lamp(s) will switch on.
For safety reasons, resetting the Lighting
submenu to factory settings
(
page 126) will not reset the daytime
running lamp mode.
In the right display you will then see the
message:
Cannot be fully reset to
factory settings while driv.!
.
Page 133 of 417

132 Controls in detailControl systemSetting locator lighting
With the locator lighting feature activated
and the exterior lamp switch in
positionU, the following lamps will
switch on when the vehicle is unlocked
with the SmartKey during darkness:
Parking lamps
Tail lamps
License plate lamps
Side marker lamps
Front fog lamps
The locator lighting switches off when the
driver’s door is opened.
If you do not open a door after unlocking
with the SmartKey the lamps will switch off
automatically after approximately
40 seconds.
Move the selection marker with button
æ or ç to the
Lighting
sub-
menu.
Press button j or k repeatedly
until you see this message in the left
display:
Locator lighting
.
The selection marker is on the current
setting.
Press æ or ç to switch the loca-
tor lighting function
On.
Turn the exterior lamp switch to
positionU when exiting the vehicle
(page 105).
The locator lighting feature is
activated.Setting night security illumination
(Headlamps delayed shut-off)
Use this function to set whether and how
long you would like the exterior lamps to
illuminate during darkness after exiting the
vehicle and all doors closed.
With the delayed shut-off feature activated
and the exterior lamp switch in
positionU before the engine is turned
off, the following lamps will switch on after
you have removed the SmartKey from the
starter switch:
Parking lamps
Tail lamps
License plate lamps
Side marker lamps
Front fog lamps
If you do not open a door after removing
the SmartKey from the starter switch, the
lamps will switch off automatically after
approximately 60 seconds.
Page 134 of 417

133 Controls in detail
Control system
Move the selection marker with button
æ or ç to the
Lighting
sub-
menu.
Press button j or k repeatedly
until you see this message in the left
display:
Headlamps delayed
switch-off
.
The selection marker is on the current
setting.
Press æ or ç to select the de-
sired lamp-on period.
You can select:
0 s
, the delayed switch-off feature
is deactivated
15 s
, 30 s
, 45 s
or
60 s
, the delayed
switch-off feature is activated
Turn the exterior lamp switch to
positionU before turning off the en-
gine (
page 105).
The headlamps delayed switch-off fea-
ture is activatedYou can temporarily deactivate the de-
layed switch-off feature:
Before leaving the vehicle turn the
SmartKey in the starter switch to
position0.
Then turn it to position2 and back
to0.
The delayed switch-off feature is deac-
tivated. It will reactivate as soon as you
reinsert the SmartKey in the starter
switch.
iYou can reactivate this function within
ten minutes by opening a door.
Page 179 of 417
178 Controls in detailGood visibilityFor information on the windshield wipers,
see (
page 53) and adjusting the mirrors,
see (page 43).
Headlamp cleaning system
The switch is located on the left side of the
dashboard.
1To clean the headlamps
Switch on the ignition (
page 40).
Press switch 1.
The headlamps are cleaned with a
high-pressure water jet.
For information on filling up the washer
reservoir, see “Windshield washer system
and headlamp cleaning system”
(
page 251).
Page 180 of 417

179 Controls in detail
Good visibility
Rear view mirrors
For more information on setting the rear
view mirrors, see “Mirrors” (
page 43).
Auto-dimming mirror
The reflection brightness of the interior
rear view mirror will respond automatically
to glare when
the ignition is switched on
and
incoming light from headlamps falls on
the sensor in the interior rear view
mirror.
The rear view mirror will not react if
reverse gearR is engaged
the interior lighting is turned on
Warning!
G
The auto-dimming function does not react if
incoming light is not aimed directly at sen-
sors in the interior rear view mirror.
Glare can endanger you and others.Warning!
G
In the case of an accident liquid electrolyte
may escape from the mirror housing if the
mirror glass breaks.
Electrolyte has an irritating effect. Do not
allow the liquid to come into contact with
eyes, skin, clothing, or respiratory system.
In case it does, immediately flush affected
area with water, and seek medical help if
necessary.
!Electrolyte drops coming into contact
with the vehicle paint finish can be
completely removed only while in the
liquid state and by applying plenty of
water.Warning!
G
Exercise care when using the passen-
ger-side exterior rear view mirror. The mirror
surface is convex (outwardly curved surface
for a wider field of view). Objects in mirror
are closer than they appear. Check your
interior rear view mirror or glance over your
shoulder before changing lanes.
Page 243 of 417
242 OperationAt the gas stationWindshield washer and headlamp
cleaning system
For more information on filling up the
washer reservoir, see “Windshield washer
system and headlamp cleaning system”
(page 251).Vehicle lighting
Check function and cleanliness. For more
information on replacing light bulbs, see
“Replacing bulbs” (
page 346).
Exterior lamp switch (page 105).Tire inflation pressure
For more information on tire inflation pres-
sure, see “Checking tire inflation pressure
manually” (
page 264).
Page 246 of 417
245 Operation
Engine compartment
2Hood latch
The hood latches are located in the upper
air intake next to the headlamp units.
Pull the hood latches2.
This completes the second stage.
Pull the hood towards you to the stop.
Press the front part of the hood.
The hood opens and will automatically
be held in position by gas-filled spring
struts.!Make sure there is sufficient clearance
before opening the hood. A minimum
overhead clearance of 6.6 ft (2.0 m) is
required.
Page 252 of 417

251 OperationTrunk
Windshield washer system and head-lamp cleaning system
Fluid for the windshield washer system and
the headlamp cleaning system is supplied
from the windshield washer reservoir. It
has a capacity of approximately
7.4USqt(7l).
During all seasons, add MB Windshield
Washer Concentrate “S” to water. Premix
the windshield washer fluid in a suitable
container.
Refill the reservoir with MB Windshield
Washer Concentrate and water (or
commercially available premixed
windshield washer solvent/antifreeze,
depending on ambient temperatures).
Always use washer solvent/antifreeze
where temperatures may fall below the
freezing point. Failure to do so could
result in damage to the washer
system/reservoir.The washer fluid reservoir is located in the
trunk underneath the floor on the left hand
side.
1Quick-release fasteners
2Loop
Lift up the interior floor panel by
loop2.
Turn the quick-release fasteners
counterclockwise1 and remove the
cover.
!Only use washer fluid which is suitable
for plastic lenses. Improper washer
fluid can damage the plastic lenses of
the headlamps.Warning!
G
Washer solvent/antifreeze is highly flamma-
ble. Do not spill washer solvent/antifreeze
on hot engine parts, because it may ignite
and burn. You could be seriously burned.