2005 MERCEDES-BENZ ML500 window

148 Controls in detailPower windowsSynchronizing power windows
The power window must be resynchro-
nized each time

after the battery has been
disconnected.


if the power windows cannot be fully
opened (Express-open) or closed (Ex-
press-close).
Synchronizing the power windows

Switch on ignition.

Press the power window switches at
the symbolj until the side win-
dows are closed.
Hold the switches for approximately
one second.
The power window are synchronized.
Rear quarter windows*
The switches are on the upper part of the
center console.
1Left side
2Right side
Switch on ignition (
page 33).Opening the windows

Press and hold the upper part of
switches1 or2.
The corresponding window will move
downwards until you release the
switch.Warning!
G
When closing the windows, make sure that
there is no danger of anyone being harmed
by the closing procedure. The closing of the
windows can be immediately halted by
releasing the switch.
When leaving the vehicle, always remove the
key from the steering lock, and lock the ve-
hicle. Do not leave children unattended in
the vehicle, or with access to an unlocked
vehicle. Unsupervised use of vehicle equip-
ment may cause an accident and / or seri-
ous personal injury.

149 Controls in detail
Power windows
Closing the windows
Press and hold the lower part of
switches1 or2.
The corresponding window will move
upwards until you release the switch.

182 Controls in detailUseful features
Remote door unlock
In case you have locked your vehicle unin-
tentionally (e.g. key inside vehicle), and no
other key is available:
Contact the Mercedes-Benz Response
Center at 1-800-756-9018 (in the USA)
or 1-888-923-8367 (in Canada).
You will be asked to provide your pass-
word which you provided when you
completed the subscriber agreement.

Then return to your vehicle and pull
outside handle of the liftgate for mini-
mum of 20 seconds until the SOS but-
ton is flashing.
The message
EMERGENCY CALL –
CALL CONNECTED appears in the MCS
display.
As an alternative, you may unlock the vehi-
cle via Internet using the ID and password
sent to you shortly after the completion of
your acquaintance call.
!If the indicator lamp continues to flash
or the system does not reset, contact
the Response Center at
1-800-756-9018 (in the USA) or
1-888-923-8367 (in Canada), or
Mercedes-Benz Customer Assistance
at 1-800-FOR-MERCedes
(1-800-367-6372) in the USA or Cus-
tomer Service at 1-800-387-0100 in
Canada.iThe indicator lamp on the correspond-
ing button flashes until the call is con-
cluded. Calls can only be terminated by
a Response Center or Customer Assis-
tance Center representative, except
Roadside Assistance and Information
calls, which can also be terminated by
using the END button on the MCS unit.
iWhen a Tele Aid call has been initiated,
the MCS system audio is muted and
the selected mode (radio, tape or CD)
pauses. The optional cellular phone (if
installed) switches off. If you must use
this phone, the vehicle must be parked.
Disconnect the coiled cord and place
the call. The navigation system (if en-
gaged) will continue to run. A pop-up
window will appear in the MCS display
to indicate that a Tele Aid call is in
progress.

191 Controls in detail
Useful features
Setting the compass zone
Determine the geographical point of
the vehicle with the aid of the zone
maps.

Switch on the ignition.

Press MODE2 (
page 189) repeat-
edly until the compass display appears
in the trip computer display3.

Press RESET1 (
page 189) to select
the compass zone mode.
The zone selected last is shown in the
display.

Press RESET1 repeatedly until the
correct 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 tilt / sliding
sunroof.


Close doors and liftgate.

Start and run the engine.

Press MODE2 (
page 189) repeat-
edly 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
---
.

203 Operation
Driving instructions
Road salts and chemicals can adversely af-
fect braking efficiency. Increased pedal
force may become necessary to produce
the normal brake effect.
Depressing the brake pedal periodically
when traveling at length on salt-strewn
roads can bring road-salt-impaired braking
efficiency back to normal.If the vehicle is parked after being driven
on salt-treated roads, the braking efficien-
cy should be tested as soon as possible af-
ter driving is resumed.
For more information, see “Winter driving”
(
page 235).
Warning!
G
On slippery road surfaces, never downshift
in order to obtain braking action. This could
result in drive wheel slip and reduced vehi-
cle control. Your vehicle’s ABS will not pre-
vent this type of control loss.
Do not engage the transfer case in position
LOW when driving on ice or packed snow. At
speeds below 18 mph (30 km / h) vehicle
steering is adversely affected by the LOW
RANGE - ABS (
page 77).
Warning!
G
Make sure not to endanger any other road
users when carrying out these braking ma-
neuvers.Warning!
G
If the vehicle becomes stuck in snow, make
sure that snow is kept clear of the exhaust
pipe and from around the vehicle with the
engine running. Otherwise, deadly carbon
monoxide (CO) gases may enter vehicle in-
terior resulting in unconsciousness and
death.
To assure sufficient fresh air ventilation,
open a window slightly on the side of the ve-
hicle not facing the wind.
Warning!
G
The outside temperature indicator is not de-
signed to serve as an ice-warning device and
is therefore unsuitable for that purpose. In-
dicated temperatures just above the freez-
ing point do not guarantee that the road
surface is free of ice.

205 Operation
Driving instructions
Special driving features for off-road
driving
The following driving features are available
for specific kind of operation:

LOW RANGE mode (
page 127)


LOW RANGE – ABS (
page 77)


LOW RANGE – 4-ETS (
page 80)


LOW RANGE – ESP (
page 81)
Off-road driving rules
Engage the LOW RANGE mode before driv-
ing under off-road conditions
(
page 127).
Fasten items being carried as securely as
possible (
page 160).Checklist before off-road driving
Engine oil level


Check the engine oil level
(page 224). The display
OIL i.O

must appear via display in the speed-
ometer.
Only then can the vehicle obtain a trou-
ble-free oil supply, even on steep gradi-
ents.
iWe recommend keeping doors, liftgate,
windows, and tilt / sliding sunroof*
closed whenever driving in off-road
mode.
!Observe the following during off-road
driving:

Adjust vehicle speed to condition of
terrain. The more uneven, rutty and
steeper the terrain, the lower the
speed should be.


Watch out for obstacles, such as
rocks, holes, tree stumps and ruts.


Be especially careful when driving
in unknown territory. It may be nec-
essary to get out of the vehicle and
scout the path you intend to take.


Before driving through water, deter-
mine is depth.


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


In sandy soil, please drive at a
steady speed as allowed by condi-
tions. This helps overcome the vehi-
cle rolling resistance and reduces
the likelihood of the vehicle sinking
into the ground.


Do not initiate jumps with the vehi-
cle. It interrupts the forward mo-
mentum of the vehicle.


Always drive onto slopes with the
the engine running and the vehicle
in gear.

215 Operation
Driving instructions


If the transmission hunts between
gears on inclines, manually shift to a
lower gear (select 4, 3, 2 or 1).
A lower gear and reduction of speed re-
duces the chance of engine overload-
ing and / or overheating.


On very steep inclines, not manageable
with gear selector lever in position1,
switch transfer case to LOW RANGE
mode (
page 127).


When going down a long hill, shift into
a lower gear and use the engine’s brak-
ing effect.
Avoid riding the brakes, thus overheat-
ing the vehicle and trailer brakes.


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.
Passenger compartmentWarning!
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 rear cargo compartment is the preferred
place to carry objects. Always use the parti-
tion net when transporting cargo. Partition
net cannot secure hard or heavy objects. Al-
ways fasten items being carried as securely
as possible using the cargo tie-down rings in
the cargo floor area and fastening materials.

221 Operation
At the gas station
Check regularly and before a long trip
Open the hood (
page 222).
1Engine oil level
2Coolant level
3Brake fluid
4Windshield washer system and
headlamp cleaning system*
Engine oil level
For more information on engine oil, see
“Engine oil” (
page 223).Coolant
For normal replenishing, use water (pota-
ble water quality). For more information,
see “Coolant level” (
page 227) and see
“Fuels, coolants, lubricants, etc.”
(
page 312).
Brake fluidWindshield / rear window washer
system and headlamp cleaning
system*
For more information on refilling the reser-
voir, see “Windshield / rear window washer
system and headlamp cleaning system*”
(
page 230).
Vehicle lighting
Check function and cleanliness. For infor-
mation on replacing light bulbs, see “Re-
placing bulbs” (
page 274).
For more information, see “Combination
switch” (
page 107).
Tire inflation pressure
For more information, see “Checking tire
inflation pressure” (
page 232).
!If you find that the brake fluid in the
brake fluid reservoir has fallen to the
minimum mark or below, have the
brake system checked for brake pad
thickness and leaks immediately. Noti-
fy an authorized Mercedes-Benz Light
Truck Center immediately. Do not add
brake fluid as this will not solve the
problem. For more information, see
“Practical Hints” (
page 251).