Page 160 of 522
159 Controls in detail
Control system
Displaying intermediate time
Press button ç while the timer is
running.
The intermediate time is shown for
5 seconds.
Stopping the RACETIMER
Press button æ.
The timer stops.Saving lap time and starting a new lap
Press button ç while the timer is
running. The intermediate time will be
shown for 5 seconds.
Press button ç within the next
5 seconds.
The intermediate time shown will be
saved as a lap time.
The RACETIMER begins timing the new
lap. The new lap begins to be timed as
soon as the intermediate time is called
up.1Gear indicator
2RACETIMER
3Best lap time
4Lap number
i
When you stop the vehicle and turn the
Smartkey to position 1 (
page 38) or, in vehi-
cles with KEYLESS-GO*, turn off the engine and
do not open the driver’s door, the RACETIMER
stops timing. Timing is resumed when you
switch the ignition back on (page 38) or
restart the engine (
page 52) and then press
theæbutton.
i
You can save up to nine laps.
Page 199 of 522

198 Controls in detailGood visibilityFor information on windshield wipers, see
“Windshield wipers” (
page 58).
Headlamp cleaning system*
The button is located on the left side of the
dashboard.
1Headlamp cleaning button
Switch on the ignition (
page 37).
Press button1.
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 332).
Rear view mirrors
For more information on setting the rear
view mirrors, see “Mirrors” (
page 47).
Auto-dimming mirrors
The reflection brightness of the exterior
rear view mirror on the driver’s side and
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 mir-
ror
The rear view mirrors will not react if
reverse gear R is engaged
the interior lighting is turned on
i
The headlamps will automatically be
cleaned when you have
switched on the headlamps
and
operated the windshield wipers with wind-
shield washer fluid fifteen times
When you switch off the ignition, the counter re-
sets.
Page 201 of 522

200 Controls in detailGood visibilityActivating exterior rear view mirror
parking position
Follow these steps to activate the mirror
parking position so that the passen-
ger-side exterior rear view mirror will be
turned downward to the stored position.
The buttons are located on the driver’s
door.
1Driver’s side exterior rear view mirror
button
2Adjustment button
3Passenger-side exterior rear view
mirror button
Switch on the ignition (
page 37).
Make sure you have stored a parking
position for the passenger-side exterior
rear view mirror (
page 136).
Vehicles equipped with
Mirror
adjust. parking aid function in the
Convenience
submenu (
page 179):
Make sure the
Mirror adjust. park-
ing aid
function in the
Convenience
submenu of the control system is
switched to
On.
Press button3 for the passenger-side
exterior rear view mirror.
Place the gear selector lever in reverse
gearR.
The passenger-side exterior rear view
mirror will be turned downward to the
stored position.The exterior rear view mirror returns to its
previously stored driving position:
10 seconds after you put the gear se-
lector lever out of positionR
immediately once your vehicle exceeds
a speed of approximately 6 mph
(10 km/h)
immediately when you press button1
for driver’s side mirror.
Page 203 of 522

202 Controls in detailGood visibilityRear window sunshade*
The switch is located in the center console.
1Rear window sunshade switch
Switch on the ignition (
page 37).
Always raise the sunshade fully for its sup-
port against the window frame.
Press switch1 briefly to raise the sun-
shade.
Press switch1 briefly to lower the
sunshade.Roller sunblind* in the rear doors
(Canada only)
Pull the roller sunblind out using the
hooks.
Attach the hooks at the top.
Warning!
G
When operating the rear window sunshade,
be sure that there is no danger of anyone be-
ing harmed by the raising or lowering proce-
dure.
The raising or lowering procedure can be im-
mediately halted by briefly pressing
switch1. To reverse direction of move-
ment, press switch1 again.Warning!
G
When leaving the vehicle, always remove the
SmartKey or the SmartKey with
KEYLESS-GO* from the starter switch, take
it with you, and lock the vehicle. Do not
leave children unattended in the vehicle, or
with access to an unlocked vehicle. A child’s
unsupervised access to a vehicle could re-
sult in an accident and/or serious personal
injury.
!
Always guide the sunblind by hand. Do not
let it snap back, as the retractor could be dam-
aged.
Page 204 of 522

203 Controls in detail
Good visibility
Rear window defroster
The rear window defroster uses a large
amount of power. To keep the battery
drain to a minimum, switch off the
defroster as soon as the rear window is
clear. The defroster is automatically
deactivated after approximately 6 to
17 minutes of operation depending on the
outside temperature.
Switch on the ignition (
page 37).Activating
Press button1 (
page 206) or
(
page 222) or buttonF
(page 207) or (
page 223) on the
respective climate control panel.
The indicator lamp on the button
comes on.Deactivating
Press buttonF or1 again.
The indicator lamp on the button goes
out.
Warning!
G
Any accumulation of snow and ice should be
removed from the rear window before
driving. Visibility could otherwise be
impaired, endangering you and others.
!
If the rear window defroster switches off too
soon and the indicator lamp starts flashing, this
means that too many electrical consumers are
operating simultaneously and there is insuffi-
cient voltage in the battery. The system re-
sponds automatically by deactivating the rear
window defroster.
As soon as the battery has sufficient voltage, the
rear window defroster automatically turns itself
back on.
Page 210 of 522

209 Controls in detail
Dual-zone automatic climate control
Deactivating the climate control system
Deactivating
Press button ´ (
page 206) or
(
page 207).
Reactivating
Make sure the ignition is switched on.
Press button ´ (
page 206) or
(
page 207) again.
The previous settings are once again in
effect.Operating the climate control system
in automatic modeActivating
Press buttonU (
page 206) or
(
page 207) while the engine is run-
ning.
The indicators for automatic air volume
and air distribution in display4
(page 206) or (
page 207) come
on. Air volume and air distribution are
automatically controlled.
Use temperature controls1 and7
(page 206) or (
page 207) to sepa-
rately adjust the air temperature on
each side of the passenger compart-
ment.
The temperature of the vehicle interior
is adjusted automatically.
Warning!
G
When the climate control is switched off, the
outside air supply and circulation are also
switched off. Only choose this setting for a
short time. Otherwise the windows could
fog up, impairing visibility and endangering
you and others.
i
To switch the system on, you can also press
another button, with the exception of 1 or
F.
i
When operating the climate control system
in automatic mode, you will only rarely need to
adjust the temperature, air volume and air distri-
bution.
In automatic mode, cooling with dehumidify is
switched on. This function can be switched off.Warning!
G
If you switch off the cooling function the
windows can fog up more quickly. Window
fogging may impair visibility and endanger
you and others.
Page 219 of 522

218 Controls in detailDual-zone automatic climate controlActivating
Moist air can fog up the windows. You can
dehumidify the air with the air condition-
ing.
Press button2 (
page 206) or
(
page 207) again.
The indicator lamp on the button
comes on.
The air conditioning uses the refrigerant
R134a. This refrigerant is free of CFCs
which are harmful to the ozone layer.Residual heat and ventilation
(Canada only)
With the engine switched off, it is possible
to continue to heat or ventilate the interior
for up to 30 minutes. This feature makes
use of the residual heat produced by the
engine.Activating
Switch off the ignition.
Press buttonT (
page 207).
REST
in the display4 (
page 207)
comes on.
Deactivating
Press buttonT (
page 207) again.
REST
in the display4 (
page 207)
goes out.
!
If the air conditioning cannot be turned on
again, this indicates that the air conditioning is
losing refrigerant. The compressor has turned it-
self off.
Have the air conditioning checked at the nearest
authorized Mercedes-Benz Center.
i
If you switch on the residual heat function
when temperatures are high, only the ventilation
will be switched on.
i
Regardless of the selected air volume, the
blower operates at low speed.
i
How long the system will provide heating de-
pends on
the coolant temperature
the temperature set by the operator
The blower will run at speed setting1 regardless
of the air distribution control setting.
i
The residual heat is automatically turned off:
when the ignition is switched on
after about 30 minutes
if the battery voltage drops
if the coolant temperature is too low
Page 227 of 522

226 Controls in detail4-zone automatic climate controlReactivating
Make sure the ignition is switched on.
Press button´ (
page 222) or
(
page 223) again.
The previous settings are once again in
effect.Operating the climate control system
in automatic modeActivating
Press one buttonU (
page 222) or
(
page 223) while the engine is run-
ning.
The indicator lamp on the button
comes on.
AUTO
appears in the
display4 (
page 222) or
(
page 223). The air volume and air
distribution are adjusted automatically.
Use temperature rocker switches3
and5 (
page 222) or (
page 223)
to separately adjust the air tempera-
ture on each side of the passenger
compartment.
The temperature of the vehicle interior
is adjusted automatically.
i
To switch the system on, you can also press
another button, with the exception of 1
(USA only) (
page 222) or F and T
(Canada only) (page 223).
i
When operating the climate control system
in automatic mode, you will only rarely need to
adjust the temperature, air volume and air distri-
bution.
In automatic mode, cooling with dehumidify is
switched on. This function can be switched off.Warning!
G
If you switch off the cooling function the
windows can fog up more quickly. Window
fogging may impair visibility and endanger
you and others.i
You can switch the automatic climate con-
trol system on and off for each side of the pas-
senger compartment as desired.