change time MERCEDES-BENZ ML500 1997 Complete Repair Manual

28 Central locking system
Te ch n ica l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index
Locking:
Press transmit button ‹ once. All turn signal lamps
blink three times to indicate that the vehicle is locked
and the antitheft alarm is activated.
Notes:
If the turn signal lamps do not blink three times when
locking the vehicle, a door, the liftgate, or the hood is
not properly closed. Close the respective element and
lock the vehicle again with the remote control.
If the vehicle cannot be locked or unlocked by pressing
the transmit button, then it may be necessary to change
the batteries in the remote control or to synchronize the
remote control, see page 270 and page 271.
Unlocking the liftgate
Press transmit button Š to unlock the liftgate. This
also deactivates the antitheft alarm.
Important!
A minimum height clearance of 7 ft. (2.15 m) is
required to open the liftgate.Panic button
To activate press and hold button (1) for at least one
second. An audible alarm and blinking turn signal
lamps will operate for approximately 3 minutes.
Additionally the interior lights switch on automatically
for approximately 3 minutes.
To deactivate press button (1) again, or press transmit
button‹, ŒorŠ on the remote control, or
turn key in steering lock to position 1.

63 Restraint systems
Te ch n ica l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index Safety guidelines for the seat belt,
emergency tensioning retractor and airbag
Wa r n i n g !
• Damaged seat belts or belts that were highly
stressed in an accident must be replaced and
their anchoring points must also be checked.
Use only belts installed or supplied by an
authorized Mercedes-Benz Light Truck Center.• Do not pass belts over sharp edges.• Do not make any modification that could
change the effectiveness of the belts.• Airbags and ETR’s are designed to function on
a one-time-only basis. An airbag or emergency
tensioning retractor (ETR) that was activated
must be replaced.
• An airbag system component within the
steering wheel gets hot after the airbag has
inflated. Do not touch.• Improper work on the system, including
incorrect installation and removal, can lead to
possible injury through an unintended
activation of the “SRS”.• No modifications of any kind may be made to
any components or wiring of the “SRS”. This
includes changing or removing any component
or part of the “SRS”, the installation of
additional trim material, badges etc. over the
steering wheel hub, front passenger airbag
cover, or front door trim panels, and
installation of additional electrical / electronic
equipment on or near “SRS” components and
wiring. Keep area between airbags and
occupants free of objects (e.g. packages,
purses, umbrellas, etc.).

90 Exterior lamp switch
Te ch n ica l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index
Exterior lamp switch
Rotate switch $ to positions:
DOff
CParking lamps (also side marker lamps, taillamps,
license plate lamps, instrument panel lamps)
Canada only: When the engine is running, the low
beam is additionally switched on.
õParking lamps plus low beam or high beam
headlamps (switch pushed forward)ƒStanding lamps, left or right side (depending on
turn signal switch position). Turn key in steering
lock to position 0 or remove.
Standing lamps, left – move stalk to position (5).
Standing lamps, right – move stalk to position (4).
Move stalk to positions:
1Low beam (exterior lamp switch position õ)
2High beam (exterior lamp switch position õ)
3High beam flasher (high beam available
independent of exterior lamp switch position)
4Turn signals, right
5Turn signals, left
To signal minor directional changes, such as changing
lanes on a h ig hway, m ove exterior la mp sw itch b rief ly to
the point of resistance only and release. The turn
signals blink three times.
To operate the turn signals continuously, move the
exterior lamp switch past the point of resistance (up or
down). The switch is automatically canceled when the
steering wheel is turned to a large enough degree.

28
Central locking system
Te ch n ica l
data
Instruments
and controls Operation
Driving Instrument
cluster display Practical hints Car care Index
Locking:
Press transmit button ‹ once. All turn signal lamps
blink three times to indicate that the vehicle is locked
and the antitheft alarm is activated.
Notes:
If the turn signal lamps do not blink three times when
locking the vehicle, a door, the liftgate, or the hood is
not properly closed. Close the respective element and
lock the vehicle again with the remote control.
If the vehicle cannot be locked or unlocked by pressing
the transmit button, then it may be necessary to change
the batteries in the remote control or to synchronize the
remote control, see page 270 and page 271.
Unlocking the liftgate
Press transmit button Š to unlock the liftgate. This
also deactivates the antitheft alarm.
Important!
A minimum height clearance of 7 ft. (2.15 m) is
required to open the liftgate. Panic button
To activate press and hold button (1) for at least one
second. An audible alarm and blinking turn signal
lamps will operate for approximately 3 minutes.
Additionally the interior lights switch on automatically
for approximately 3 minutes.
To deactivate press button (1) again, or press transmit
button ‹, Œ orŠ on the remote control, or
turn key in steering lock to position 1.

63
Restraint systems
Te ch n ica l
data
Instruments
and controls Operation
Driving Instrument
cluster display Practical hints Car care Index
Safety guidelines for the seat belt,
emergency tensioning retractor and airbag
Wa r n i n g !
• Damaged seat belts or belts that were highly stressed in an accident must be replaced and
their anchoring points must also be checked.
Use only belts installed or supplied by an
authorized Mercedes-Benz Light Truck Center.• Do not pass belts over sharp edges.• Do not make any modification that could change the effectiveness of the belts.• Airbags and ETR’s are designed to function on a one-time-only basis. An airbag or emergency
tensioning retractor (ETR) that was activated
must be replaced.
• An airbag system component within the steering wheel gets hot after the airbag has
inflated. Do not touch.• Improper work on the system, including incorrect installation and removal, can lead to
possible injury through an unintended
activation of the “SRS”.• No modifications of any kind may be made to any components or wiring of the “SRS”. This
includes changing or removing any component
or part of the “SRS”, the installation of
additional trim material, badges etc. over the
steering wheel hub, front passenger airbag
cover, or front door trim panels, and
installation of additional electrical / electronic
equipment on or near “SRS” components and
wiring. Keep area between airbags and
occupants free of objects (e.g. packages,
purses, umbrellas, etc.).

90
Exterior lamp switch
Te ch n ica l
data
Instruments
and controls Operation
Driving Instrument
cluster display Practical hints Car care Index
Exterior lamp switch
Rotate switch $ to positions:
D Off
C Parking lamps (also side marker lamps, taillamps,
license plate lamps, instrument panel lamps)
Canada only: When the engine is running, the low
beam is additionally switched on.
õ Parking lamps plus low beam or high beam
headlamps (switch pushed forward) ƒ
Standing lamps, left or right side (depending on
turn signal switch position). Turn key in steering
lock to position 0 or remove.
Standing lamps, left – move stalk to position (5).
Standing lamps, right – move stalk to position (4).
Move stalk to positions: 1 Low beam (exterior lamp switch position õ)
2 High beam (exterior lamp switch position õ)
3 High beam flasher (high beam available
independent of exterior lamp switch position)
4 Turn signals, right
5 Turn signals, left
To signal minor directional changes, such as changing
lanes on a h ig hway, m ove exterior la mp sw itch b rief ly to
the point of resistance only and release. The turn
signals blink three times.
To operate the turn signals continuously, move the
exterior lamp switch past the point of resistance (up or
down). The switch is automatically canceled when the
steering wheel is turned to a large enough degree.

49 Getting started
Driving
High beam
Push the combination switch forward.
The high beam indicatorA in the
instrument cluster comes on.
More information can be found in the
“Controls in detail” section (
page 110).
Turn signals
The combination switch is on the left of the
steering column.Combination switch1Turn signals, right
2Turn signals, left

Press the combination switch up1 or
down2.
The switch is automatically cancelled
when the steering wheel is turned to a
large enough degree.
Windshield wipers
The wiper switch is located on the right of
the steering column.Wiper switch0Windshield wipers off
1Intermittent wiping
2Normal wiper speed
3Fast wiper speed
4Wiping with windshield wiper fluid
iTo signal minor directional changes,
move combination switch to point of
resistance only and release. The turn
signal flashes three times.

62 Safety and SecurityOccupant safetySafety guidelines for the seat belt,
emergency tensioning device and
airbag
When you sell your vehicle, we strongly
urge you to give notice to the subsequent
owner that it is equipped with an SRS by
alerting them to the applicable section in
the Operator’s Manual.Warning
G


Damaged seat belts or belts that were
highly stressed in an accident must be
replaced and their anchoring points
must also be checked. Use only belts in-
stalled or supplied by an authorized
Mercedes-Benz Light Truck Center.


No modifications of any kind may be
made to any components or wiring of
the SRS. This includes changing or re-
moving any component or part of the
SRS, the installation of additional trim
material, badges, etc. over the steering
wheel hub, passenger front airbag cov-
er, or door trim panels, and installation
of additional electrical / electronic
equipment on or near SRS components
and wiring. Keep area between airbags
and occupants free from objects (e.g.
packages, purses, umbrellas, etc.).


Airbags and emergency tensioning de-
vices (ETDs) are designed to function on
a one-time only basis. An airbag or ETD
that was activated must be replaced.


Do not pass belts over sharp edges.
They could tear.


Do not make any modification that could
change the effectiveness of the belts.


Do n o t h a ng i te ms su ch as c o at ha n ger s
from the coat hooks or handles over the
door. These items may turn into projec-
tiles and cause head and other injuries
when curtain airbag is deployed.


An airbag system component within the
steering wheel gets hot after the airbag
has inflated. Do not touch.


Improper work on the system, including
incorrect installation and removal, can
lead to possible injury through an unin-
tended activation of the SRS.


In addition, through improper work
there is a risk of rendering the SRS inop-
erative or causing unintended airbag de-
ployment. Work on the SRS must
therefore only be performed by qualified
technicians. Contact your authorized
Mercedes-Benz Light Truck Center.


For your protection and the protection
of others, when scrapping the airbag
unit or emergency tensioning device,
our safety instructions must be fol-
lowed. These instructions are available
from your authorized Mercedes-Benz
Light Truck Center.


Given the considerable deployment
speed and the textile structure of the
airbags, there is the possibility of abra-
sions or other injuries resulting from air-
bag deployment.

125 Controls in detail
Transmission control – LOW RANGE mode
Transmission control – LOW RANGE mode
In the following situations you should
switch to LOW RANGE mode:

during off-road driving


when crossing water


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

Move the gear selector lever to
positionN.

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

Move the gear selector lever to
positionN.

Press on the upper part of the switch.
During the changeover the indicator
lamp (
page 25) flashes 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 76).
!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 (
page 33).

150 Controls in detailDriving systems
Driving systemsThe driving systems of your vehicle are de-
scribed on the following pages:

Cruise control, with which the vehicle
can maintain a preset speed.


Parktronic*, with which you can assist
your parking maneuvers.
The driving systems BAS, ABS, ESP, EBB
and 4-ETS, are described in the “Safety
and Security” section (
page 76).
Cruise control
Cruise control automatically maintains the
speed you set for your vehicle.
Use of cruise control is recommended for
driving at a constant speed for extended
periods of time. You can set or resume
cruise control at any speed over 20 mph
(30 km / h).
The cruise control function is operated by
means of the cruise control lever.
The cruise control lever is the uppermost
lever found on the left-hand side of the
steering column (
page 23).
Warning!
G
Cruise control is a convenience system de-
signed to assist the driver during vehicle op-
eration. The driver is and must remain
responsible for the vehicle speed and for
safe brake operation.
Only use cruise control if the road, traffic
and weather conditions make it advisable to
travel at a steady speed.

The use of cruise control can be danger-
ous on winding roads or in heavy traffic
because conditions do not allow safe
driving at a steady speed.


The use of cruise control can be danger-
ous on slippery roads. Rapid changes in
tire traction can result in wheel spin and
loss of control.


Deactivate cruise control when driving
in fog.
The “Resume” function should only be oper-
ated if the driver is fully aware of the previ-
ously set speed and wishes to resume this
particular preset speed.