2006 MERCEDES-BENZ CL500 Owner's Manual

328 Practical hintsWhat to do if …?Lamps in instrument cluster
General information:If any of the following lamps in the instru-
ment cluster fails to come on during the
lamp self-check when switching on theignition, have the respective bulb checked
and replaced if necessary.Problem
Possible cause/consequence
Suggested solution
-
The yellow Antilock Brake
System (ABS) indicator lamp
comes on while driving.
The ABS has detected a malfunction and
has switched off. The BAS and the ESP
® are
also switched off (see messages in multi-
function display).
The brake system is still functioning nor-
mally but without the ABS available.
If the ABS control unit is malfunctioning,
other systems such as Parktronic*,
Distronic*, and 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 mul-
tifunction display (
page 337).

Have the system checked at an autho-
rized Mercedes-Benz Center as soon as
possible.
Failure to follow these instructions increas-
es the risk of an accident.
The charging voltage has fallen below
10 volts and the ABS has switched off.
The battery may not be charged sufficiently.

Switch off electrical consumers that are
currently not needed, e.g. seat heat-
ing*.

If necessary, have the generator
(alternator) and battery checked.
When the voltage is above this value again,
the ABS is operational again.

329 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 (
page 50).
The red brake warning
lamp comes on while
driving.
There is insufficient brake fluid in the reser-
voir.
Risk of accident!
Carefully stop the vehicle in a safe loca-
tion and notify an authorized
Mercedes-Benz Center. Do not add
brake fluid! This will not solve the prob-
lem.
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 result in spilling brake fluid on hot en-
gine 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.

330 Practical hintsWhat 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 en-
gine to its limp-home (emergency opera-
tion) mode.

Have the vehicle checked as soon as
possible 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 malfunctions through the read-
out of diagnostic trouble codes. It is lo-
cated in the front left area of the
footwell next to the parking brake pedal.
Your fuel tank is empty.

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

331 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.
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 (
page 270).
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 Center.
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 270).

332 Practical hintsWhat 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.
l
Only vehicles with Distronic*:
The red distance warning lamp
comes on while driving and you
hear a warning sound.


You are gaining too rapidly on the vehi-
cle 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.
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.
Distronic* is deactivated.

When driving off, apply as little throttle
as possible.

While driving, ease up on the accelera-
tor.

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

Do not deactivate the ESP
®. Exceptions:
(
page 83).
Failure to follow these instructions increas-
es the risk of an accident.

333 Practical hints
What to do if …?
Problem
Possible cause/consequence
Suggested solution
v
The yellow ESP
® warning lamp
comes on while driving.
The ESP
® switched off.
Risk of accident!
Switch the ESP
® back on (
page 84).

Adapt your speed and driving to the pre-
vailing road and weather conditions.
If the ESP
® cannot be switched back on,
have the system checked at an authorized
Mercedes-Benz Center as soon as possible.
<
The red seat belt telltale illumi-
nates briefly after starting the
engine.
The driver has not fastened his or her seat
belt.

Fasten your seat belt.
The warning lamp goes out.

334 Practical hintsWhat to do if …?Problem
Possible cause/consequence
Suggested solution
H
The yellow warning lamp for the
tire inflation pressure monitor
comes on.
The tire inflation pressure monitor detects a
loss of pressure in at least one tire.

Bring the vehicle to a halt, avoiding
abrupt steering and braking maneuvers.
Observe the traffic situation around you.

Read and observe messages in the mul-
tifunction display.
The warning lamp goes out once the tire in-
flation pressure monitor has been reactivat-
ed after the tire inflation pressures have
been corrected.
Warning!
G
When the tire inflation pressure monitoring
system warning light is lit, one or more of
your tires is significantly under-inflated. You
should stop and check your tires as soon as
possible, and inflate them to the proper
pressure as indicated on the vehicle’s tire in-
formation placard. Driving on a significantly
under-inflated tire causes the tire to over-
heat and can lead to tire failure.
Under-inflation also reduces fuel efficiency
and tire tread life, and may affect the vehi-
cle’s handling and stopping ability. Each tire,
including the spare, should be checked
monthly when cold and set to the recom-
mended inflation pressure as specified in
the vehicle placard and owner’s manual.
iThe recommended tire inflation pres-
sures for your vehicle can be found on
the tire placard on the driver’s door
B-pillar or, if available, the inside of the
fuel filler flap, not in the owner’s
manual.

335 Practical hints
What to do if …?
Problem
Possible cause/consequence
Suggested solution
1
The red Supplemental Restraint
System (SRS) indicator lamp
comes on while driving.
There is a malfunction in the restraint sys-
tems. The air bags or emergency tensioning
devices (ETDs) could deploy unexpectedly
or fail to activate in an accident.

Drive with added caution to the nearest
authorized Mercedes-Benz 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 Center immediately to have
the system checked; otherwise the SRS may
not be activated when needed in an acci-
dent, which could result in serious or fatal
injury, or it might deploy unexpectedly and
unnecessarily which could result in an acci-
dent and/or injury to you or to others.