2003 MERCEDES-BENZ ML350 Lights

91 Controls in detail
Seats
Seats
Information on seat adjustment can be
found in the “Getting started” section
(page 34).
Seat heater*
The seat heaters can only be switched on
with the engine running.
The switches are located on the upper cen-
ter console.
1Normal heating
2Rapid heatingSwitching on normal seat heating mode

Press upper part1 of switch.
One indicator lamp in the switch lights
up.
Switching off normal seat heating
mode

Press upper part1 of switch again.
The indicator lamp in the switch goes
out.
Switching on rapid seat heating mode

Press lower part2 of switch.
Both indicator lamps in the switch light
up.Switching off rapid seat heating mode

Press lower part2 of switch again.
Both indicator lamps in the switch go
out.
iThe seat heater will be automatically
switched off after approximately
20 minutes.
iThe system switches over to normal
heating mode after approximately five
minutes. Only one indicator lamp re-
mains lit.!If one or both of the lamps on the seat
heater switch are blinking, there is in-
sufficient voltage available since too
many electrical consumers are turned
on. The seat heater switches off auto-
matically.
The seat heater will switch back on
again automatically as soon as suffi-
cient voltage is available.

102 Controls in detailLighting
LightingFor notes on how to switch on the head-
lamps (
page 46) and use the turn signals
(
page 47), see the “Getting started” sec-
tion.
Combination switch
The combination switch is on the left of the
steering column.
1High beam
2High beam flasherM
Off
U
Automatic headlamp mode
C
Parking lamps, license plate lamps
and instrument panel lamps
Canada only: With the engine run-
ning, the low beam headlamps
additionally switched on.
õ
Low beam or high beam headlamps
ƒ
Left or right standing lamps (sym-
bol on underside of switch)Switching on high beams

Turn the switch to
õ
.

Push the exterior lamp switch forward.
The high beam symbol
A
in the
instrument cluster lights up.
High beam flasher

Pull the combination switch briefly in
direction2.
iIf you remove the key and open the
driver’s door while the parking lamps or
low beam headlamps are switched on,
then a warning sounds.

103 Controls in detail
Lighting
Automatic headlamp mode
The parking lamps, low beam headlamps
and license plate lamps switch on and off
automatically depending on the brightness
of the ambient light.
Turn the combination switch to
U
.Daytime running lamp mode
Canada only:

Turn combination switch to
position
M
or
U
.
When the engine is running, the low
beam headlamps are automatically
switched on. In low ambient light con-
ditions the parking lamps will also
switch on.
When you shift from a driving position to
positionN orP, the low beam switches off
(3 minutes delay).
For nighttime driving you should turn the
combination switch to position
õ
to
permit activation of the high beam head-
lamps.
Warning!
G
In automatic headlamp mode, the head-
lamps will not be automatically switched on
under foggy conditions. To minimize risk to
you and to others, activate headlamps by
turning combination switch to
õ
.
The driver is responsible for the operation of
the vehicle’s lights at all times. The automat-
ic headlamp feature is only an aid to the driv-
er. Switch on the vehicle lights manually
when driving or when traffic conditions re-
quire you to do so.
iIf the automatic headlamp mode is ac-
tivated, the fog lamps can also be
switched on (
page 105). The low
beam headlamp and parking lamps are
activated simultaneously.
iIf you drive in countries where vehicles
drive on the other side of the road than
the country where the vehicle is regis-
tered, you must have the headlamps
modified for symmetrical low beams.
Relevant information can be obtained
at your authorized Mercedes-Benz
Light Truck Center.
iThe high beam flasher is always avail-
able.

105 Controls in detail
Lighting
Locator lighting
During darkness, the following lamps will
come on when the vehicle is unlocked by
remote control:

Parking lamps


Tail lamps


License plate lamps


Front fog lamps
The combination switch must be set to
position
U
(page 102).
The locator lighting switches off when the
driver’s door is opened. It switches off au-
tomatically after a period of approximately
40 seconds.
Fog lamps
The switch is located on the upper center
console.
1Front fog lamps
2Indicator lamp
3Front fog lamps and rear fog lampSwitching on front fog lamps

Check that the low beam headlamps
are switched on.

Press upper part1 of switch.
The green indicator lamp
‡
in the
instrument cluster lights up.
Switching on front fog lamps and rear
fog lamp

Check that the low beam headlamps
are switched on.

Press lower part3 of switch.
The green indicator lamp
‡
in the
instrument cluster lights up in addition
to the yellow indicator lamp2 in the
switch.
Switching off front fog lamps and rear
fog lamp

Press lower part3 of switch.
The green indicator lamp
‡
in the
instrument cluster and the yellow indi-
cator lamp2 in the switch go out.
iThe fog lamps can be switched on with
combination switch in position
õ

or U. Consult your state Motor Regula-
tions regarding allowable lamp opera-
tion.

118 Controls in detailTransmission control – LOW RANGE mode
Transmission control – LOW RANGE modeIn the following situations you should
switch to LOW RANGE mode:

during off-road driving


when crossing water


when towing up or down on steep gra-
dients
Switching on LOW RANGE modeLOW RANGE mode switch
Stop the vehicle.

Move the selector lever to positionN.

Press on the upper part of the switch.
During the changeover the indicator
lamp (
page 25) blinks three times.
Once the changeover is complete, the
indicator lamp lights up continuously.
Switching off LOW RANGE mode
Stop the vehicle.

Move the selector lever to positionN.

Press on the upper part of the switch.
During the changeover the indicator
lamp (
page 25) blinks three times.
Once the changeover is complete, the
indicator lamp goes out.
For information on driving safety systems
during LOW RANGE mode see the “Safety
and Security” section (
page 71).
!Only switch the LOW RANGE mode on
or off, when the vehicle is

at a complete standstill


the engine speed is less than
1500 rpm
Failure to do so may result in transmis-
sion or engine damage which is not
covered by the Mercedes-Benz Limited
Warranty.
!You should only operate the vehicle on
a single axle dynamometer for briefly
testing the brakes.
The key must be in steering lock
position1.

126 Controls in detailAutomatic climate controlThe automatic climate control is operation-
al whenever the engine is running. You can
operate the climate control system in ei-
ther the automatic or manual mode. The
system cools or heats the interior depend-
ing on the selected interior temperature
and the current outside temperature.
Nearly all dust particles, pollutants and
odors are filtered out before outside air en-
ters the passenger compartment through
the air distribution system.
Automatic mode
Switching on
Briefly press button
U

(
page 125).
The indicator lamp lights up. The tem-
perature, air volume and distribution
are controlled automatically.

Adjust the temperature with the tem-
perature control4 (
page 125).
Temperature control is switched off in
the extreme position (blue or red dot).
Warning!
G
Follow the recommended settings for heat-
ing and cooling given on the following pag-
es. Otherwise the windows could fog up,
impairing visibility and endangering you and
others.
iSevere conditions (e.g. strong air pollu-
tion) may require replacement of the fil-
ter before its scheduled interval. A
clogged filter will reduce the air volume
to the interior.
If the vehicle interior is hot, ventilate
the interior before driving off.
Keep the air intake grille in front of the
windshield free of snow and debris.
Do not touch the interior temperature
sensor to maintain a precise tempera-
ture.
The set value is indicated by a lighted
segment on the control wheels.

128 Controls in detailAutomatic climate controlAdjusting air distribution
Turn air distribution control8
(page 125) to one the following sym-
bols:
Windshield fogged on the outside

Switch the windshield wipers on.

Turn air distribution control8 to
h

or
k
.
Defrosting
Activating
Press button
P
(page 125).
The indicator lamp on the button lights
up.
Deactivating

Press button
P
again.
or

Press button
U
(page 125).
The indicator lamp on the button lights
up.
The indicator lamp on the button lights up.
Air recirculation mode
Switch to air recirculation mode to prevent
unpleasant odors from entering the vehicle
from the outside. This setting cuts off the
intake of outside air and recirculates the
air in the passenger compartment.
Symbol
Function
h
Directs air to the center
and side air outlets
j
Directs air to the wind-
shield and side air outlets
V
Directs air into the entire
vehicle interior
k
Directs air to the foot-
wells and side air outlets
iThese settings should only be selected
for a short time.
When the defrost setting has been se-
lected, only the rear window defroster
can be switched on. No other settings
are possible.
Warning!
G
When the outside temperature is below
41°F (5°C), only switch to air recirculation
mode for short periods to prevent window
fogging.

129 Controls in detail
Automatic climate control
Activating
Press button
O
(page 125).
The indicator lamp on the button lights
up.
Deactivating

Press button
O
(page 125).
The indicator lamp on the button goes
out.
Air conditioning
The air conditioning is operational while
the engine is running and cools the interior
air to the temperature set by the operator.
Deactivating
It is possible to deactivate the air condi-
tioning (cooling) function of the automatic
climate control system. The air in the vehi-
cle will then no longer be cooled or dehu-
midified.
Press button
°
(page 125).
The indicator lamp on the button
°

lights up.
iTo achieve the fastest possible cooling
of the interior, the automatic climate
control automatically switches to air
recirculation. The indicator lamp in the
button
O
is not illuminated when
the system automatically switches to
air recirculation.
iThe air recirculation mode is activated
automatically after

30 minutes if the automatic climate
control is switched on


after five minutes if the air condi-
tioning is switched off


after five minutes if the outside
temperature is above approximate-
ly 45°F (7 °C)
iCondensation may drip out from under-
neath the vehicle. This is normal and
not an indication of a malfunction.