2007 MERCEDES-BENZ ML320CDI Comand Manual

416 Practical hintsWhat to do if …Problem
Possible cause/conse-
quence
Suggested solution
;
(USA only)
3
(Canada only)
-
v
The red brake warning lamp
comes on while driving. In ad-
dition, the yellow ABS malfunc-
tion indicator lamp, and the
yellow ESP
® warning lamp
come on and a warning will
sound.
A malfunction in the Electronic
Brake Proportioning
(page 101) was detected.

Have the system checked at an autho-
rized Mercedes-Benz Light Truck
Center as soon as possible.
Failure to follow these instructions
increases the risk of an accident.

417 Practical hints
What to do if …
Problem
Possible cause/consequence
Suggested solution
?
(USA only)
±
(Canada only)
The yellow engine malfunc-
tion indicator lamp comes on
while driving.
There is a malfunction in:

The fuel management system


The ignition system


The emission control system


Systems which affect
emissions
Such malfunctions may result in
excessive emissions values and
may switch the engine to its
limp-home (emergency opera-
tion) mode (
page 198).

Have the vehicle checked as soon as
possible by an authorized
Mercedes-Benz Light Truck Center.
An on-board diagnostic connector is
used by the service station to link the
vehicle to the shop diagnostics
system. It allows the accurate identi-
fication of system malfunctions
through the readout of diagnostic
trouble codes. It is located in the
front left area of the footwell next to
the parking brake pedal.
i
Some states may by law require you to visit
a workshop immediately as soon as the engine
malfunction indicator lamp comes on. Check
local requirements.

418 Practical hintsWhat to do if …Problem
Possible cause/conse-
quence
Suggested solution
?
(USA only)
±
(Canada only)
The yellow engine malfunction
indicator lamp comes on while
driving.
A loss of pressure has been
detected in the fuel system.
The fuel cap may not be closed
properly.
The fuel system may be leaky.

Check the fuel cap (
page 352).
If it is not closed properly:

Close the fuel cap.
If it is closed properly:

Have the fuel system checked by an
authorized Mercedes-Benz Light Truck
Center.
Your fuel tank is empty.

After refueling start, turn off and
restart the engine three or four times in
succession.
The limp-home mode is canceled. You do
not need to have your vehicle checked.

419 Practical hints
What to do if …
Problem
Possible cause/consequence
Suggested solution
v
The yellow ABS/ESP
® warning
lamp comes on while driving.
The ESP
® has been switched off.
Risk of accident!
When the ESP
® is switched off it will not sta-
bilize the vehicle if the system recognizes
that the vehicle starts to skid or that a wheel
is spinning.

Switch the ESP
® back on (
page 100).
Exceptions: (
page 99).

If leaving the ESP
® switched off, adapt
your speed and driving to the prevailing
road and weather conditions.
If the ESP
® cannot be switched on:

Have the system checked at an autho-
rized Mercedes-Benz Light Truck
Center as soon as possible.
The ESP
® is not operational due to a malfunc-
tion.
Risk of accident!

Observe additional messages in the
multifunction display.

Continue driving with added caution.

Adapt your speed and driving to the pre-
vailing road and weather conditions.

Have the system checked at an autho-
rized Mercedes-Benz Light Truck
Center as soon as possible.

420 Practical hintsWhat to do if …Problem
Possible cause/consequence
Suggested solution
v
The yellow ABS/ESP
® warning
lamp flashes while driving.
The ESP
®, ABS, or traction control has come
into operation because of detected traction
loss in at least one tire.
The cruise control and the Distronic* system
are deactivated.

When driving off, apply as little throt-
tle as possible.

While driving, ease up on the acceler-
ator.

Adapt your speed and driving to the
prevailing road and weather condi-
tions.

Do not deactivate the ESP
®.
Exceptions: (
page 99).
Failure to follow these instructions
increases the risk of an accident.
The yellow fuel tank reserve
warning lamp in the fuel gauge
comes on while driving.
The fuel level has gone below the reserve
mark.

Refuel at the next gas station
(page 352).

421 Practical hints
What to do if …
Problem
Possible cause/consequence
Suggested solution
<
The red seat belt telltale comes
on for a maximum of 6 seconds
after starting the engine.
The seat belt telltale reminds you and your
passengers to fasten your seat belts before
driving off.

Fasten your seat belts.
Regardless of whether the seat belts
are fastened or not, the seat belt tell-
tale always comes on and remains lit
for 6 seconds after starting the
engine.
<
You hear a warning chime for a
maximum of 6 seconds after
starting the engine.
You have forgotten to fasten your seat belt.

Fasten your seat belts.
The warning chime stops sounding.

422 Practical hintsWhat to do if …Problem
Possible cause/consequence
Suggested solution
<
The red seat belt telltale comes
on while the vehicle is standing
still and the engine is running or
during driving.
You and/or your front passenger have
forgotten to fasten your seat belts.

Fasten your seat belts.
The seat belt telltale goes out.
There are items placed on the front passen-
ger seat and therefore the system senses the
front passenger seat as being occupied.

Remove the items from the front pas-
senger seat and put them in a safe
place.
The seat belt telltale goes out.
<
During driving the red seat belt
telltale flashes and you addition-
ally hear an intermittent warning
chime with increasing intensity.
The vehicle’s speed once exceeded 15 mph
(25 km/h) and you and/or your front pas-
senger have forgotten to fasten your seat
belts.

Fasten your seat belts.
The seat belt telltale goes out and the
warning chime stops sounding.
There are items placed on the front passen-
ger seat and therefore the system senses the
front passenger seat as being occupied.

Remove the items from the front pas-
senger seat and put them in a safe
place.
The seat belt telltale goes out and the
warning chime stops sounding.
i
After 60 seconds with an unfastened seat
belt the warning chime stops sounding and the
seat belt telltale illuminates continuously. The seat belt telltale will only go out if both, the
driver’s and front passenger’s seat belt are
fastened, or the vehicle is standing still and a
front door is opened.

423 Practical hints
What to do if …
Problem
Possible cause/consequence
Suggested solution
l
The red distance warning lamp
comes on while driving and you
hear a warning chime sound.


You are gaining too rapidly on the vehicle
ahead of you.


The distance warning system has recog-
nized a stationary obstacle on your probable
line of travel.

Apply the brakes immediately.

Carefully observe the traffic
situation. You may need to brake
or maneuver to avoid hitting an
obstacle.
1
The red SRS indicator lamp comes
on while driving.
There is a malfunction in the restraint systems.
The air bags or emergency tensioning device
(ETDs) could deploy unexpectedly or fail to
deploy unexpectedly in an accident.

Drive with added caution to the
nearest authorized
Mercedes-Benz Light Truck
Center.
Warning!
G
In the event a malfunction of the SRS is indi-
cated as outlined above, the SRS may not be
operational. For your safety, we strongly
recommend that you visit an authorized
Mercedes-Benz Light Truck Center immedi-
ately to have the system checked, otherwise
the SRS may not be activated when needed
in an accident, which could result in serious
or fatal injury, or it might deploy unexpect-
edly and unnecessarily which could result in
an accident and/or injury to you or to
others.