climate control MERCEDES-BENZ ML320 2003 W163 User Guide

131 Controls in detail
Automatic climate control
Rear window defroster
The rear window defroster uses a large
amount of power. To keep the battery
drain to a minimum, switch off the defrost-
er as soon as the rear window is clear. The
defroster is automatically deactivated af-
ter approximately 6 to 17 minutes of oper-
ation depending on the outside
temperature.
Activating
Switch ignition on.

Press button
F
(page 125).
The indicator lamp on the button lights
up.
Deactivating

Press button
F
again.
The indicator lamp on the button goes
out.Rear passenger compartment ventila-
tion and rear automatic climate control
Deactivating
For an improved cooling or heating output
in the front passenger compartment, you
can switch off the rear passenger compart-
ment ventilation.
Press button
§
(page 125).
The indicator lamp on the button lights
up.
The operation of the rear automatic cli-
mate control and the fresh air supply to
the rear compartment is shut off.
Activating

Press button
§
again.
The indicator lamp on the button goes
out.
The rear automatic climate control
switches to automatic mode and fresh
air enters the rear compartment.
Warning!
G
Any accumulation of snow and ice should be
removed from the rear window before driv-
ing. Visibility could otherwise be impaired,
endangering you and others.!If the rear window defroster switches
off too soon and the indicator lamp
starts blinking, this means that too
many electrical consumers are operat-
ing simultaneously and there is insuffi-
cient voltage in the battery. The system
responds automatically by deactivating
the rear window defroster.
As soon as the battery has sufficient
voltage, the rear window defroster au-
tomatically turns itself back on.

132 Controls in detailAutomatic climate controlAutomatic mode
The automatic climate control panel for the
rear is located on the rear center console.
1Air volume control
2Air distribution control
3Automatic control (air distribution, air
volume)
Press button
U
.
The indicator lamp on the button lights
up.
The automatic climate control cools or
heats the interior depending on the
temperature selected on the front cli-
mate control unit.Adjusting air volume and air distribu-
tion manually
Adjusting air volume

Press upper part of button
R
.
The blower setting is increased each
time the button is pressed.

Press lower part of button
R
.
The blower setting is decreased each
time the button is pressed.Adjusting air distribution

Press
Ô
, upper part of button2.
Air is directed upwards.

Press
Ó
, lower part of button2.
Air is directed to the footwell.
Front and rear air outlets
iWhen the air volume or air distribution
control is pressed, the automatic mode
is switched off. The indicator lamp in
button
U
is turned off. Temperature
setting remains in automatic mode.
iFor draft-free ventilation, adjust the air
outlets upwards
To allow unrestricted operation of the
automatic climate control, the air out-
lets should remain open.

133 Controls in detail
Automatic climate control
Adjusting side air outlets
Turn thumbwheel4 (
page 125), to
one of the following positions:Center air outlets
Opening

Turn thumbwheel center air outlet 1
(page 125) upward to position
h
.
Closing

Turn thumbwheel center air outlet 1
downward to position
M
.
Use the left thumbwheel to adjust the cen-
ter air outlets on the left and in the center.
Use the right thumbwheel to adjust the
right center air outlet.Rear passenger compartment air out-
lets
1Adjustable center air outlet, left
2Adjustable center air outlet, right
Symbol
Function
h
Open
l

Ventilation of side win-
dows in area of exterior
mirror
M
Closed
iThe temperature at the air outlets for
the rear passenger compartment is the
same as at the dashboard center air
outlets.

174 Controls in detailUseful featuresSetting the compass zone
Determine the geographical point of
the vehicle with the aid of the zone
maps.

Switch on the ignition.

Press MODE2 (
page 172) repeated-
ly until the compass display appears in
the trip computer display3.

Press RESET1 (
page 172) to select
the compass zone mode.
The zone selected last is shown in the
display.

Press RESET1 repeatedly until the cor-
rect compass zone, as determined
from the zone map, is shown in the dis-
play.

Press MODE2 twice.
The new compass zone is activated and
the compass display will be shown.Calibrating the compass
If the vehicle was exposed to a significant
magnetic zone, such as high voltage power
lines, the compass may have to be calibrat-
ed.
To calibrate the compass correctly, ob-
serve the following:


Calibrate the compass in an area free
of steel superstructures and power
lines.


Switch off all electrical consumers (e.g.
exterior lamps, climate control, rear
window defroster etc.).


Do not open or close the slid-
ing/pop-up roof.


Close doors and liftgate.

Start and run the engine.

Press MODE2 (
page 172) repeated-
ly until the compass display appears in
the trip computer display3.

Press RESET1 and afterwards press
MODE2.
In the display appears
CAL–
.

Press and hold RESET1 for approxi-
mately two seconds.
The calibration mode is activated and
the display shows
CAL
.

Drive without interruption two full cir-
cles at a speed between 3 mph
(5 km / h) and 7 mph (10 km / h).
The message
CAL
goes out after a short
time. The calibration is now complete.
iAn open liftgate triggers the
display
---
.

189 Operation
Driving instructions
Driving downhill

Select gear range1 on the automatic
transmission (
page 114).


Drive downhill observing the same
rules as driving uphill (
page 187).


The special LOW RANGE – ABS setting
allows for precise and brief (cyclical)
blocking of the front wheels, permitting
them to dig into loose ground.
Remember that the front wheels when
stopped, slide across a surface, thus
loose their ability to steer the vehicle.Driving through water
120 in (50 cm)


Before driving through water, deter-
mine its depth. It should not be deeper
than approximately 20 inches (50 cm).


Switch to LOW RANGE mode before
driving through water (
page 118).


Switch off the exterior lamps as well as
the climate control.


Enter the water only at a shallow spot.
Never take a running start.


Drive slowly, avoiding a bow wave.


Do not stop vehicle immersed in water,
and do not shut off the engine.


To dry the brakes, apply pressure to the
brake pedal several times after leaving
the water.

196 OperationDriving instructions

If the engine coolant rises to an ex-
tremely high temperature (coolant tem-
perature needle approaching the red
zone) when the air conditioning is on,
turn off the air conditioning system.
Engine coolant heat can be additionally
vented by opening the windows,
switching the climate control fan speed
to high and setting the temperature
control to the maximum hot position.


Extreme care must be exercised since
your vehicle with a trailer will require
additional passing distance ahead than
when driving without a trailer.
Because your vehicle and trailer is
longer than your vehicle alone, you will
also need to go much farther ahead of
the passed vehicle before you can re-
turn to your lane.Parking
Passenger compartment
Warning!
G
To reduce the risk of personal injury, or
damage to the vehicle powertrain, as a re-
sult of vehicle/trailer movement, always:

Keep right foot on brake pedal.


Shift gear selector lever to positionN.


Have a second person place wheel
chocks on downhill side of left and right
trailer wheels.


Slowly release brake pedal and let vehi-
cle and trailer roll into chocks until
stopped.


Firmly depress parking brake pedal.


Move gear selector lever to position P.


When parked on an incline, turn front
wheel towards the road curb.
Warning!
G
Always fasten items being carried as secure-
ly as possible.
In an accident, during hard braking or sud-
den maneuvers, loose items will be thrown
around inside the vehicle, and cause injury
to vehicle occupants unless the items are
securely fastened in the vehicle.
The trunk is the preferred place to carry ob-
jects. Always use partition net when trans-
porting cargo. Partition net cannot secure
hard or heavy objects.

219 Operation
Vehicle care
Paintwork, painted body components
Mercedes-Benz approved Paint Care
should be applied when water drops on the
paint surface do not “bead up”, normally
every 3 to 5 months, depending on climate
and washing detergent used.
Mercedes-Benz approved Paint Cleaner
should be applied if the paint surface
shows signs of dirt embedding (i.e. loss of
gloss).
Do not apply any of these products or wax
if your vehicle is parked in the sun or if the
hood is still hot.
Use the appropriate MB-Touch-Up Stick
for quick and provisional repairs of minor
paint damage (i.e. chips from stones, vehi-
cle doors, etc.).Engine cleaning
Prior to cleaning the engine compartment,
make sure to protect electrical compo-
nents and connectors from the intrusion of
water and cleaning agents.
Corrosion protection, such as MB Anticor-
rosion Wax should be applied to the engine
compartment after every engine cleaning.
Before applying, all control linkage bush-
ings and joints should be lubricated. The
poly-V-belt and all pulleys should be pro-
tected from any wax.
Vehicle washing
Do not use hot water or wash your vehicle
in direct sunlight. Use only a mild car wash
detergent, such as Mercedes-Benz ap-
proved Car Shampoo.Thoroughly spray the vehicle with a dif-
fused jet of water. Direct only a very weak
spray towards the ventilation intake. Use
plenty of water and rinse the sponge and
chamois frequently.
Rinse with clear water and thoroughly dry
with a chamois. Do not allow cleaning
agents to dry on the finish.
Due to the width of the vehicle, fold in out-
side mirrors prior to running the vehicle
through an automatic car wash to prevent
damage to the mirrors.
In the winter, thoroughly remove all traces
of road salt as soon as possible.
When washing the underbody, do not for-
get to clean the inner sides of the wheels.

291 Technical data
Consumer information
Consumer information
This has been prepared as required of all
manufacturers of passenger cars under Ti-
tle 49, Code of U.S. Federal Regulations,
Part 575 pursuant to the “National Traffic
and Motor Vehicle Safety Act of 1966”.Uniform tire quality grading
Quality grades can be found, where appli-
cable, on the tire sidewall between tread
shoulder and maximum section width. For
example:
All passenger car tires must conform to
federal safety requirements in addition to
these grades.Tread wear
The tread wear grade is a comparative rat-
ing based on the wear rate of the tire when
tested under controlled conditions on a
specified government test course. For ex-
ample, a tire graded 150 would wear one
a nd one-ha lf (1 ½ ) tim es as wel l on the gov-
ernment course as a tire graded 100. The
relative performance of tires depends
upon the actual conditions of their use,
however, and may depart significantly
from the norm due to variations in driving
habits, service practices and differences in
road characteristics and climate.Traction
The traction grades, from highest to lowest
are AA, A, B, and C. Those grades repre-
sent the tire’s ability to stop on wet pave-
ment as measured under controlled
conditions on specified government test
surfaces of asphalt and concrete. A tire
marked C may have poor traction perfor-
mance.Tread wear
Traction
Temperature
200
AA
A
Warning!
G
The traction grade assigned to this tire is
based on straightahead braking traction
tests, and does not include acceleration,
cornering, hydroplaning, or peak traction
characteristics.

299 Index
A
ABS 25, 71, 293
ABS control 71
LOW RANGE mode 72
Malfunction indicator lamp 225
Warning lamp 225
Accelerator position, automatic
transmission 117
Accident
In case of 49
Activating
Air circulation mode 130
Air recirculation mode 129
Anti-theft alarm system 78
Automatic climate control 125
ESP 77
Exterior headlamps 46
Hazard warning flasher 106
Headlamps 46
High beams 102
Ignition 33
Immobilizer 51, 78
Rear passenger compartment
ventilation and climate control 131
Rear window defroster 131
Rear window wiper 48Residual heat 130
Seat heater 91
Tow-away alarm 80
Warning indicators (Parktronic*) 151
Windshield wipers 48
Activating automatic central locking 89
Adding
Coolant 206
Engine oil 204, 205
Additional turn signals 247
Adjustable steering column
Indicator lamp 229
Adjusting 34
Backrest tilt 36, 37
Exterior rear view mirror 38
Head restraint height 36, 37
Head restraint tilt 36, 37
Headlamp aim 253
Instrument cluster illumination 110
Manual seat 35
Mirrors 38
Power seats 37
Seat cushion tilt 37
Seat fore and aft 35
Seat fore and aft adjustment 37
Seat height 35, 36Seats 34
Steering wheel 37
Adjusting air distribution
Automatic climate control 127
Adjusting air volume
Automatic climate control 127
Air conditioner (cooling)
Turning on 129
Air conditioning
Cooling 129
Air conditioning refrigerant 286
Air outlets
Automatic climate control 132
Air pressure see Tire inflation pressure 211
Air pump 238
Air recirculation mode 128
Activating 129
Deactivating 129
AIRBAG OFF
Warning lamp 232
Airbags 55
BabySmart
TM airbag deactivation
system 293
BabySmartTM deactivation system 65
Children 56
Front 59

300 Index
Passenger 59
Safety guidelines 57
Side impact 59
Window curtain 59
Alarm
Audible 70, 79
Canceling 79
Visual 78
Alarm system
Anti-theft 78
Anticorrosion/antifreeze 288
Antiglare
Automatic 119
Antilock brake system (ABS) 293
Anti-theft alarm system
Arming 78
Canceling alarm 79
Disarming 79
Anti-theft systems
Anti-theft alarm system 78
Immobilizer 78
Tow-away alarm, glass breakage
sensor 79
Aquaplaning see Hydroplaning 183Armrest
Storage compartment in front of 153
Storage spaces 153
Armrest in rear seat bench 155
Ashtray
Front center console 156
Rear center console 157
At the gas station 200
ATF (automatic transmission fluid) 206
Attaching a trailer 194
Automatic antiglare for rear
view mirror 119
Automatic central locking
Activating 89
Deactivating 89
Automatic climate control 124
Adjusting air distribution 127
Adjusting air volume 127
Air conditioning 129
Air outlets 132
Air recirculation mode 128
Basic setting 127
Changing basic setting 127
Defrosting 128Economy mode 125
Rear passenger compartment 131
Rear window defroster 131
Residual heat utilization 130
Residual ventilation 130
Switching off 127
Switching on 126
Automatic headlamp mode 103
Automatic interior lighting control
Activating 107
Deactivating 107
Automatic locking when driving 89
Automatic transmission 113
Accelerator position 117
Emergency operation (Limp Home
Mode) 117
Gear ranges 114
Gear selector lever position 115
Gear shifting malfunctions 117
Kickdown 117
Manual shifting 113
One-touch gearshifting 113
Selector lever position 113
Towing a trailer 117
Transmission fluid 206