2005 MERCEDES-BENZ ML500 warning light

159 Controls in detail
Driving systems
Switching Parktronic system on / off
The Parktronic system can switched on or
off manually.
The Parktronic switch is located on the
lower part of the center console.
1Parktronic off
2Indicator lamp
3Parktronic onSwitching off the Parktronic system

Press Parktronic switch on upper
part1.
Indicator lamp2 comes on.
Switching on the Parktronic system

Press Parktronic switch on lower
part3.
The indicator lamp2 goes out.!If the Parktronic system is malfunction-
ing, all red segments of the warning in-
dicators light up and an additional
warning sounds.
Contact your Mercedes-Benz Light
Truck Center as soon as possible.
iIf you switch the ignition on, the Park-
tronic system will be automatically
switched on.
The rear Parktronic sensors will not au-
tomatically disengage when towing a
trailer. Therefore switch the Parktronic
system off.

162 Controls in detailLoadingHooks
Four hooks located on the rear compart-
ment trim panels, two on each side.HooksUse the hooks to secure light weight items.
The maximum permissible weight per hook
is 9 lbs (4 kg).
Partition net*Use of the partition net is a particularly im-
portant safety factor when the vehicle is
loaded higher than the top of the seat
backrests with smaller objects.
The partition net can be installed behind
the backrests of the front or rear seats.
Engaging partition net
1Holder
2Mounting hookWarning!
G
Always lock backrest in its upright position
when rear seat bench is occupied by pas-
sengers, or cargo is being carried behind the
seat bench.
To help avoid personal injury from smaller
objects flying in the occupant compartment
during a collision or sudden maneuver, al-
ways use partition net when transporting
cargo.
The partition net cannot prevent the move-
ment of large, heavier objects into the pas-
senger compartment in an accident. Such
items must be properly secured using the
cargo tie-down rings in the cargo compart-
ment floor (
page 161).
Passenger use of seats behind installed par-
tition net is restricted because of the foot-
well being taken up by the net.

166 Controls in detailLoadingInstalling cargo floor plates
1Opening
2Pins
3Attachment opening
4Latch
Grip into opening1 and guide pins2
into attachment opening3.
The center pin must snap into place in
latch4.
Roof rack*Roof rails
For further information, inquire at your
Mercedes-Benz Light Truck Center.
Warning!
G
Take into consideration that when the roof
rack is loaded, the handling characteristics
are different from those when operating the
vehicles without the roof rack loaded.
The maximum roof load when using roof
rack systems is 220 lb (100 kg).
!Attach roof racks to the roof rails only.
Use only those roof racks approved by
Mercedes-Benz for your vehicle model.
Follow manufacturer’s installation in-
structions.
The vehicle could otherwise be dam-
aged.

171 Controls in detail
Useful features
Ashtrays and cigarette lighter Ashtray and cigarette lighter in the
front center console
1Ashtray
2Cigarette lighter
3Cover plate
Opening the ashtray

Briefly touch cover plate3.
The ashtray opens automatically.Removing ashtray insert

Secure vehicle from movement by set-
ting the parking brake. Move the gear
selector lever to positionN.
Now you have more room to take out
the insert.

Grip the insert on the sides and pull it
out upwards.
Reinstalling ashtray insert

Install ashtray insert.

Close the ashtray.
Warning!
G
Never touch the heating element or sides of
the cigarette lighter; they are extremely hot.
Hold the knob only.
When leaving the vehicle always remove the
key from the steering lock. Do not leave chil-
dren unattended in the vehicle, or with ac-
cess to an unlocked vehicle. Unsupervised
use of vehicle equipment may cause an ac-
cident and / or serious personal injury.iThe cigarette lighter socket can be
used to accommodate electrical acces-
sories up to a maximum of 50 W.
If the engine is off, the battery may be-
come discharged when used for long
periods of time.
Warning!
G
Remove ashtray only with vehicle standing
still. Set the parking brake to secure vehicle
from movement. Move gear selector lever to
positionN. With gear selector lever in
positionN, turn off the engine.

173 Controls in detail
Useful features
Electrical outletElectrical outletOne outlet is located in the front passen-
ger footwell and another on the right-hand
side of the luggage compartment.
Flip up cover and insert electrical plug
(cigarette lighter type).
Telephone*
Radio transmitters, such as a portable tele-
phone or a citizens band unit, should only
be used inside the vehicle if they are con-
nected to an antenna that is installed on
the outside of the vehicle.
The external antenna must be approved by
Mercedes-Benz. Please contact an autho-
rized Mercedes-Benz Light Truck Center
for information on the installation of an ap-
proved external antenna. Refer to the radio
transmitter operation instructions regard-
ing use of an external antenna.
iThe outlets function even if the key is
not in the ignition.
The electrical outlet can be used to
accommodate electrical consumers
(e.g. air pump, auxiliary lamps) up to a
maximum of 180 W.
If the engine is off, the battery may be-
come discharged if used for long peri-
ods of time.
Warning!
G
Never operate radio transmitters equipped
with a built-in or attached antenna (i.e. with-
out being connected to an external antenna)
from inside the vehicle while the engine is
running. Doing so could lead to a malfunc-
tion of the vehicle’s electronic system, pos-
sibly resulting in an accident and / or serious
personal injury.

176 Controls in detailUseful features
Emergency calls
An emergency call is initiated
automatically:

following an accident in which the
emergency tensioning detractors
(ETDs) or airbags deploy.
An emergency call can also be initiated
manually by opening the cover next to the
inside rear view mirror labeled SOS, then
briefly pressing the button located under
the cover. See (
page 178) for
instructions on initiating an emergency call
manually.
Warning!
G
The Tele Aid control unit is located under
the front passenger seat. If there is accumu-
lation of water or other liquid in this com-
partment, the Tele Aid control unit could
suffer an electrical short circuit making the
system inoperative. In this case the indica-
tor lamp in the SOS button will not illumi-
nate during or will remain illuminated after
the system self-check. Have the system
checked at the nearest Mercedes-Benz
Light Truck Center as soon as possible.
If the indicator lamps in the SOS button, in
the Roadside Assistance button and / or in
the Information button do not come on dur-
ing the system self-check or if any of these
indicators remain illuminated constantly in
red and / or the message
TELE AID -
VISIT WORKSHOP
is displayed in the MCS
display after the system self-check, a mal-
function in the system has been detected.
If a malfunction is indicated as outlined
above, the system may not operate as ex-
pected. Have the system checked at the
nearest Mercedes-Benz Light Truck Center
as soon as possible.

184 Controls in detailUseful featuresRemote control integrated into the
overhead control panel1Hand-held remote control trans-
mitter (not part of the vehicle
equipment)
2Hand-held transmitter button
3,4,5 Signal transmitter button
6Indicator lamp
Warning!
G
Before programming the integrated remote
control to a garage door opener or gate op-
erator, make sure people and objects are
out of the way of the device to prevent po-
tential harm or damage.When programming
a garage door opener, the door moves up or
down. When programming a gate operator,
the gate opens or closes.
Do not use the integrated remote control
with any garage door opener that lacks safe-
ty stop and reverse features as required by
U.S. federal safety standards (this includes
any garage door opener model manufac-
tured before April 1, 1982). A garage door
that cannot detect an object - signaling the
door to stop and reverse - does not meet
current U.S. federal safety standards.
iCertain types of garage door openers
are incompatible with the integrated
opener. If you should experience diffi-
culties with programming the transmit-
ter, contact an authorized
Mercedes-Benz Light Truck Center, or
call Mercedes-Benz Customer Assis-
tance Center (in the USA only) at
1-800-FOR-MERCedes, or Customer
Service (in Canada) at
1-800-387-0100.

197 Operation
Driving instructions
Driving instructions
Drive sensibly – save fuel
Fuel consumption, to a great extent, de-
pends on driving habits and operating con-
ditions.
To save fuel you should:

Keep tires at the recommended infla-
tion pressures.


Remove unnecessary loads.


Allow engine to warm up under low
load use.


Avoid frequent acceleration and decel-
eration.


Have all maintenance work performed
at the intervals specified in the Mainte-
nance Booklet and as required by the
maintenance service indicator. Contact
an authorized Mercedes-Benz Light
Truck Center.
Fuel consumption is also increased by driv-
ing in cold weather, in stop-and-go traffic,
on short trips and in hilly country.
Drinking and driving
PedalsPower assistance
Warning!
G
Drinking and driving and / or taking drugs
and driving are a very dangerous combina-
tion. Even a small amount of alcohol or
drugs can affect your reflexes, perceptions
and judgement.
The possibility of a serious or even fatal ac-
cident are greatly increased when you drink
or take drugs and drive.
Do not drink or take drugs and drive or allow
anyone to drive who has been drinking or
taking drugs.
Warning!
G
Keep driver’s foot area clear at all times. Ob-
jects stored in this area may impair pedal
movement.Warning!
G
With the engine is not running, there is no
power assistance for the brake and steering
systems. In this case, it is important to keep
in mind that a considerably higher degree of
effort is necessary to brake and steer the ve-
hicle.