ignition MERCEDES-BENZ M-CLASS 2007 Manual PDF

443 Practical hints
What to do if …
Display message
Possible
cause/conse-
quence
Possible solutionMonitor the 59indicator lamp on the center console (
page 89) and
the multifunction display in the instrument cluster (
page 26) for the following:
With the seat unoccupied and the ignition turned on,


the 59indicator lamp on the center console should illuminate and
remain illuminated, indicating that the OCS (
page 85) has deactivated the air
bag.


the message
Front passenger airbag enabled See Operator’s Manual
or the
message
Front passenger airbag disabled See Operator’s Manual
should not
appear in the multifunction display at any time the seat is unoccupied. Wait at last
60 seconds for the system to complete the necessary check cycles and to make
sure neither message appears in the multifunction display.
If above conditions are met, you can occupy the front passenger seat again.
Depending on the front passenger classification sensed by the OCS (
page 85),
the59indicator lamp will remain illuminated or go out.
If above conditions are not met, the system is not working properly. Have the system
checked as soon as possible by an authorized Mercedes-Benz Light Truck Center.
Warning!
G
If the 59indicator lamp
remains illuminated with an adult occupant
on the front passenger seat even after per-
forming the above corrective steps, do not
have any passenger use the front passenger
seat until the system has been repaired.
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449 Practical hints
What to do if …
Display symbol
Display messages
Possible cause/consequence
Possible solution
;
(USA only)
3
(Canada only)
Check
brake fluid level
There is insufficient brake fluid
in the reservoir.

Risk of accident! Stop the vehicle in a
safe location or as soon at is safe to do
so.

Apply the parking brake (
page 65).

Notify an authorized Mercedes-Benz
Light Truck Center. Do not add brake
fluid! This will not solve the problem.
?
(USA only)
±
(Canada only)
Engine
Service
There may be a malfunction in
the

fuel injection system


ignition system


exhaust system


fuel system

Have the engine checked by an
authorized Mercedes-Benz Light Truck
Center.
Warning!
G
Driving with the message
Check brake
fluid level
displayed can result in an ac-
cident. Have your brake system checked im-
mediately. Do not add brake fluid before
checking the brake system. Overfilling the
brake fluid reservoir can result in spilling
brake fluid on hot engine parts and the
brake fluid catching fire. You could be seri-
ously burned.
!
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.
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456 Practical hintsWhat to do if …Display symbol
Display messages
Possible cause/consequence
Possible solution
F
Key
not detected
The SmartKey with
KEYLESS-GO* is not recognized
while the engine is running
because

the SmartKey with
KEYLESS-GO* is not in the
vehicle


there is strong
radio-frequency interference

Stop the vehicle in a safe location or as
soon as it is safe to do so.

Apply the parking brake (
page 65).

Search for the SmartKey with
KEYLESS-GO*.
Otherwise the vehicle cannot be centrally
locked nor can the engine be started
again after the engine is stopped.
The SmartKey with
KEYLESS-GO* is momentarily
not recognized.

Change the position of the SmartKey with
KEYLESS-GO* in the vehicle.

Operate the vehicle with the SmartKey in
the starter switch if necessary.
Key
not detected
The SmartKey with
KEYLESS-GO* is not recognized
while the ignition is switched on
(page 40) and a door is
opened or closed and the
SmartKey with KEYLESS-GO* is
not in the vehicle.

Search for the SmartKey with
KEYLESS-GO*.
Otherwise the vehicle cannot be locked
nor can the engine be started.

Change the position of the SmartKey with
KEYLESS-GO* in the vehicle.
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498 Practical hintsFlat tireMounting the spare wheel
Preparing the vehicle
Prepare the vehicle as described
(page 497).Vehicles with Minispare wheel:

Take the wheel wrench, the collapsible
wheel chock, and the vehicle jack out
of the cargo compartment
(page 469).

Take the Minispare wheel out of the
cargo compartment (
page 473).
Vehicles with collapsible tire
(ML 63 AMG only):

Take the collapsible tire, wheel wrench,
wheel bolts, jack, and electric air pump
out of the cargo compartment
(page 474).Lifting the vehicle
i
Vehicles with collapsible tire:
You can use the power outlet in the cargo com-
partment or in the front of the rear seats to oper-
ate the electric air pump even when the ignition
is switched off, e.g. in order to inflate the col-
lapsible emergency spare tire.
An emergency shut-off feature ensures that the
vehicle’s electrical voltage does not fall below a
minimum level. If the voltage drops to this mini-
mum level, the power outlets are automatically
switched off. This ensures that enough power re-
mains to start the engine.
!
Vehicles with factory-mounted
running-boards*:
Your vehicle is equipped with a scissors-type
jack (located under the cargo compartment
floor) designed for use with factory-mounted
running boards. Only use this jack when jacking
up vehicles with factory-mounted running boards
as otherwise the vehicle’s underbody can be
damaged. See separate instructions for
scissors-type jack.
Warning!
G
The jack is designed exclusively for jacking
up the vehicle at the jack take-up brackets
built into both sides of the vehicle. To help
avoid personal injury, use the jack only to lift
the vehicle during a wheel change. Never
get beneath the vehicle while it is supported
by the jack. Keep hands and feet away from
the area under the lifted vehicle. Always
firmly set parking brake and block wheels
before raising vehicle with jack.
Do not disengage parking brake while the
vehicle is raised. Be certain that the jack is
always vertical (plumb line) when in use,
especially on hills. Always try to use the jack
on level surface. Make sure that the jack
arm is fully seated in the jack take-up brack-
et. Always lower the vehicle onto sufficient
capacity jackstands before working under
the vehicle.

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509 Practical hints
Battery
Disconnecting, removing, reinstalling and reconnecting the battery
Step 1 (Disconnecting)

Set the automatic transmission to
positionP (
page 187).

Firmly depress the parking brake
(page 65).

Turn off the engine (
page 66).

Leave the ignition switched on
(page 40).
!
Never loosen or detach battery terminal
clamps while the engine is running or the
SmartKey is in the starter switch. Otherwise the
alternator and other electronic components
could be severely damaged.
Have the battery checked regularly by an
authorized Mercedes-Benz Light Truck Center.
Contact your authorized Mercedes-Benz Light
Truck Center for further information.
Warning!
G
Do not place metal objects on the battery as
this could result in a short circuit.
Use leak-proof battery only to avoid the risk
of acid burns in the event of an accident.
Warning!
G
Disconnecting, removing, reinstalling and
reconnecting the battery is a complicated
and technically demanding procedure that
also requires safety precautions to avoid the
risk of injury. We strongly recommend that it
be performed by a qualified technician or an
authorized Mercedes-Benz Light Truck
Center only. Please read the instructions
fully before beginning operation and only
undertake it if you feel fully capable of
performing all of the tasks involved as de-
scribed in these instructions. Observe all
safety instructions and precautions when
handling automotive batteries
(page 507). Performing the tasks involved
incorrectly can cause damage to the vehicle
and impair the operating safety of the
vehicle, and/or cause severe injury to you
or others.
i
With a disconnected battery you will no
longer be able to turn the SmartKey in the starter
switch and pressing the KEYLESS-GO*
start/stop button will have no effect.
i
If your battery is discharged, the vehicle
must be jump started (
page 515) using the
jump start contacts in the engine compartment,
or an accessory battery charge unit* approved
by Mercedes-Benz must be connected using the
jump start contacts in the engine compartment
(see separate instructions for the accessory bat-
tery charge unit*) before any of the following
steps can be performed. If the battery cannot be
jumped or charged, please contact an
authorized Mercedes-Benz Light Truck Center.

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511 Practical hints
Battery
2Perforated floor carpet, unfolded
Fold the floor carpet piece2 in
direction of the arrow.

Move the front passenger seat to the
most forward and upward position
again (
page 44).

Switch off the ignition (
page 40).

Remove SmartKey from starter switch.
Vehicles with KEYLESS-GO*:
Make sure the vehicle’s on-board
electronics have status0 (Turn off
the engine or all electrical systems
using the KEYLESS-GO start/stop
button. Open the driver’s door. With
the driver’s door open, the vehicle’s
on-board electronics have status0,
same as with the SmartKey
removed from the starter switch).

Enter the rear passenger compartment
again.Step 4 (Disconnecting)
3Air channel
4Clip with pin insert

Pull pin out of clip4 in direction of
arrow.

Pull clip with pin4 outwards.

Remove air channel3 by pulling it out
in direction of arrow.
i
If the vehicle battery is discharged and you
had the vehicle jump started, turn off the engine.
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519 Practical hints
Towing the vehicle
Warning!
G
If circumstances require towing the vehicle
with all wheels on the ground, always tow
with a tow bar if:

the engine will not run


there is a malfunction in the power
supply or in the vehicle’s electrical sys-
tem
Prior to towing the vehicle with all wheels on
the ground, make sure the starter switch is
in position2 (
page 40).
Warning!
G
With the engine 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
vehicle. Adapt your driving accordingly.
i
To signal turns while being towed with
hazard warning flasher in use, set the starter
switch to position2 and activate combination
switch for left or right turn signal in usual manner
– only the selected turn signal will operate.
Upon canceling the turn signal, the hazard
warning flasher will operate again.
i
If the battery is disconnected or discharged,
the automatic transmission will remain locked in
positionP and the SmartKey will not turn in the
starter switch. For more information, see “Bat-
tery” (page 507) and “Jump starting”
(
page 515).
!
When towing the vehicle with all wheels on
the ground, note the following:
With the automatic central locking activated and
the ignition in position2 (
page 40), the vehicle
doors lock if the left front wheel is turning at a
speed of approximately 9 mph (15 km/h) or
above.
To prevent the vehicle doors from locking,
deactivate the automatic central locking
(
page 126).
Towing of the vehicle should only be done using
the towing eye bolt. Never attach tow cable, tow
rope or tow rod to vehicle chassis, frame or sus-
pension parts.
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562 IndexHeadlamps
Automatic headlamp mode 137
Bi-Xenon* 458, 486
Cleaning lenses 408
Cleaning system* 200, 363
Halogen 485
High beam see High beam flasher
High beam see High beam headlamps
Light sensor, Messages in the
multifunction display 460
Low beam see Low beam headlamps
Manual headlamp mode 137
Messages in the
multifunction display 458, 459,
460, 461, 462, 463
Replacing bulbs 482, 483
Switch 59, 136
Heated seats see Seat heating*
Heated steering wheel* 304
Height adjustment
Vehicle level control (Vehicles with
Air suspension package*) 271High beam flasher 59, 140
High beam headlamps
Indicator lamp 29
Messages in the
multifunction display 459
Replacing bulbs 483, 485, 486
Switching on 59, 140
High mounted brake lamp 483
Hood 356
Messages in the
multifunction display 455
Opening 356
Hooks
Loading 284
Horn 25
HVAC see Climate control or
automatic climate control (3-zone)*
Hydroplaning 330I
Identification labels see Labels
Ignition 40, 42, 55
Immobilizer 103
Indicator lamps see Lamps, Indicator and
warning
Infant and child restraint systems see
Children in the vehicle
Inflation pressure see Tires,
Inflation pressures
Information button see Tele Aid*
Infrared reflecting windshield* 322
Inside door handle 118
Instrument cluster 26, 28, 145
Illumination brightness 145
Lamps 414
Messages in display see
Multifunction display messages
Multifunction display 147
Outside temperature indicator 146
Selecting language 167
Instrument lighting see Instrument cluster,
Illumination brightness 145
Instrument panel see Instrument cluster
Instruments and controls see Cockpit
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