MERCEDES-BENZ E320 BLUETEC 2007 W211 Owner's Manual

380 Practical hintsWhat to do if …Lamps in instrument clusterGeneral information:
If any of the following lamps in the instru-
ment cluster fails to come on during thebulb self-check when switching on the igni-
tion, have the respective bulb checked and
replaced if necessary.Problem
Possible cause/consequence
Suggested solution
-
The yellow ABS indicator lamp
comes on while the engine is
running.
The ABS has detected a malfunction and has
switched off. The BAS, ESP
®, EBP and
PRE-SAFE
® are also switched off (see
messages in the multifunction display).
The brake system is still functioning normally
but without the ABS available.
If the ABS control unit is malfunctioning, oth-
er systems such as the Parktronic system*,
Distronic*, or the automatic transmission
may also be malfunctioning.

Continue driving with added caution.
Wheels may lock during hard braking,
reducing steering capability.

Read and observe messages in the
multifunction display (
page 396).

Have the system checked at an autho-
rized Mercedes-Benz Center as soon
as possible.
Failure to follow these instructions in-
creases the risk of an accident.
The charging voltage has fallen below
10 volts. The ABS has switched off.
The battery might not be charged sufficiently.
When the voltage is above this value
again, the ABS is operational again and
the ABS indicator lamp should go out.
If the ABS indicator lamp does not go out:
Have the generator (alternator) and
the battery checked.

381 Practical hints
What to do if …
Problem
Possible cause/consequence
Suggested solution
v
The yellow ESP
® warning lamp
comes on while the engine is
running.
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 104).
Exceptions: (
page 102).

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

Have the system checked at an autho-
rized Mercedes-Benz 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
prevailing road and weather condi-
tions.

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

382 Practical hintsWhat to do if …Problem
Possible cause/consequence
Suggested solution
v
The yellow ESP
® warning
lamp flashes while driving.
The ESP
® 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 throttle as
possible.

While driving, ease up on the accelerator.

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

Do not deactivate the ESP
®.
Exceptions: (
page 104).
Failure to follow these instructions increases
the risk of an accident.

383 Practical hints
What to do if …
Problem
Possible cause/consequence
Suggested solution
;
(USA only)
3
(Canada only)
The red brake warning lamp
comes on while driving and
you hear a warning sound.
You are driving with the parking
brake set.

Release the parking brake.

Observe the additional message in
the multifunction display.
The red brake warning lamp
comes on when the engine is
running and you hear a warn-
ing sound.
There is insufficient brake fluid in
the reservoir.

Risk of accident! Do not drive any fur-
ther. Consult a Mercedes-Benz
Service Center. Under no circum-
stances should you top up the brake
fluid. This will not solve the problem.
Warning!
G
Driving with the brake warning lamp illumi-
nated can result in an accident. Have your
brake system checked immediately if the
brake warning lamp stays on. Do not add
brake fluid before checking the brake
system.
Overfilling the brake fluid reservoir can re-
sult in spilling brake fluid on hot engine
parts and the brake fluid catching fire. You
can be seriously 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.

384 Practical hintsWhat to do if …Problem
Possible cause/consequence
Suggested solution
ú
(USA only)
±
(Canada only)
The yellow engine mal-
function indicator lamp
comes on while driving.
There may be a malfunction in the

fuel management system


ignition system (gasoline engine)


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 operation)
mode.

Have the vehicle checked as soon as possi-
ble by an authorized Mercedes-Benz 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 identification of system malfunc-
tions through the readout of diagnostic trou-
ble codes. It is located in the front left area
of the footwell next to the parking brake.
i
Some states may by law require you to visit
a workshop immediately as soon as the engine
malfunction indicator lamp comes on. Check lo-
cal requirements.

385 Practical hints
What to do if …
Problem
Possible cause/consequence
Suggested solution
ú
(USA only)
±
(Canada only)
The yellow engine mal-
function 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 or the fuel system may be leaky.

Check the fuel cap.
If it is not closed properly:

Close the fuel cap.
If it is closed properly:

Have the fuel system checked by an autho-
rized Mercedes-Benz Center.
Your fuel tank is empty.

After refuelling 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.

386 Practical hintsWhat to do if …Problem
Possible cause/consequence
Suggested solution
D
The red coolant temperature
warning lamp comes on when
the engine is running.
There is insufficient coolant in the reservoir.
If this warning lamp comes on frequently,
there is a leak in the cooling system.
If the coolant level is correct, the electric ra-
diator fan may be broken.

Immediately add coolant to prevent
engine from overheating
(page 330).

Have the cooling system checked.

If the coolant temperature is below
248°F (120°C), you can continue
driving to the nearest authorized
Mercedes-Benz Center.

Avoid high engine loads (e.g. driving
uphill) and stop-and-go driving.
The red coolant temperature
warning lamp comes on while
driving and you hear a warning
sound.
The coolant temperature has exceeded
248°F (120°C).

Stop as soon as possible in a safe lo-
cation and allow the engine and cool-
ant to cool down.
Warning!
G
Driving when your engine is overheated can
cause some fluids which may have leaked
into the engine compartment to catch fire.
You could be seriously burned.
Steam from an overheated engine can cause
serious burns which can occur just by open-
ing the engine hood. Stay away from the en-
gine if you see or hear steam coming from it.
Turn off the engine, get out of the vehicle
and do not stand near the vehicle until the
engine has cooled down.

387 Practical hints
What to do if …
Problem
Possible cause/consequence
Suggested solution
l
Only vehicles with Distronic*:
The red distance warning lamp
comes on while driving.
You are too close to the vehicle in front of you
to maintain selected speed.

Apply the brakes immediately to in-
crease the following distance.
Only vehicles with Distronic*:
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 prob-
able line of travel.

Apply the brakes immediately.

Carefully observe the traffic situation.
You may need to brake or maneuver
to avoid hitting an obstacle.
A
The yellow fuel tank reserve
warning lamp comes on while
driving.
The fuel level has gone below the reserve
mark.

Refuel at the next gas station
(page 321).

388 Practical hintsWhat 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 belt.
The warning chime stops sounding.
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 for-
gotten 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.

389 Practical hints
What to do if …
Problem
Possible cause/consequence
Suggested solution
<
During driving the red seat belt
telltale flashes and you addi-
tionally 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
and front passenger’s seat belt are fastened, or
the vehicle is standing still and a front door is
opened.