MERCEDES-BENZ CLK55AMG 2006 C209 Owner's Manual

Page 391 of 514

390 Practical hintsWhat to do if …?Display message
Possible cause/
consequence
Possible solution
Front passenger
air bag
activated
see Oper.’s Man.
Monitor the 56indicator lamp on the center console (
page 27) and the mul-
tifunction display in the instrument cluster (
page 24) for the following:
With the seat unoccupied and the ignition turned on,

the 56indicator lamp on the center console should illuminate and remain
illuminated, indicating that the OCS (
page 78) has deactivated the air bag.

the message
Front passenger air bag activated see Oper.’s Man.
or the mes-
sage
Front passenger air bag deactivated see Oper.’s Man.
should not ap-
pear 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. Depend-
ing on the front passenger classification sensed by the OCS (
page 78), the
56indicator 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 Center.
Warning!
G
If the 56indicator lamp remains
out even after performing the above correc-
tive steps, do not have any children 12 years
old and under and other small individuals
use the front passenger seat until the sys-
tem has been repaired.

Page 392 of 514

391 Practical hints
What to do if …?
Display message
Possible cause/consequence
Possible solution
Front passenger
air bag
deactivated
see Oper.’s Man.
Front passenger front air bag is deac-
tivated while driving even though an
adult or someone larger than a small
individual is occupying the front pas-
senger seat. Forces acting on the
seat may make the system sense a
decrease in weight.
Stop the vehicle in a safe location as soon as possible and check the
front passenger seat for the following:
Switch off the ignition (
page 34).

Have the front passenger vacate the seat and exit the vehicle.

Keep the seat unoccupied, close the front passenger door and
switch on the ignition (
page 34).
(Continued on next page)

Page 393 of 514

392 Practical hintsWhat to do if …?Display message
Possible cause/
consequence
Possible solution
Front passenger
air bag
deactivated
see Oper.’s Man.
Monitor the 56indicator lamp on the center console (
page 27) and the mul-
tifunction display in the instrument cluster (
page 24) for the following:
With the seat unoccupied and the ignition turned on,

the 56indicator lamp on the center console should illuminate and remain
illuminated, indicating that the OCS (
page 78) has deactivated the air bag.

the message
Front passenger air bag activated see Oper.’s Man.
or the
message
Front passenger air bag deactivated see Oper.’s Man.
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. Depend-
ing on the front passenger classification sensed by the OCS (
page 78), the
56indicator 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 Center.
Warning!
G
If the 56indicator lamp remains
illuminated with an adult occupant on the
front passenger seat even after performing
the above corrective steps, do not have any
passenger use the front passenger seat until
the system has been repaired.

Page 394 of 514

393 Practical hints
What to do if …?
Display message
Possible cause/consequence
Possible solution
P
Selector lever
in park position
You have turned off the engine with the
KEYLESS-GO* start/stop button in gear
selector lever positionN and opened the
driver’s door.
or
You have attempted to switch off the en-
gine with the KEYLESS-GO* start/stop
button while the gear selector lever was in
positionR orD.

Place the gear selector lever in
positionP.
Please
shift to
N or P
You have attempted to start the engine
with the KEYLESS-GO* start/stop button
while the gear selector lever was in
positionR orD.

Place the gear selector lever in
positionP or N.

Page 395 of 514

394 Practical hintsWhat to do if …?Display message
Possible cause/consequence
Possible solution
Run Flat Indicator
inactive
Run Flat Indicator* is malfunctioning.

Have the Run Flat Indicator* checked by an autho-
rized Mercedes-Benz Center.
Check tires
Then reactivate
Run Flat Indicator
There was a warning message about a
loss in the tire inflation pressure and
the Run Flat Indicator* has not been
reactivated yet.

Make sure that the correct tire inflation pressure is
set for each tire.

Then reactivate the Run Flat Indicator*.
Run Flat Indicator
unavailable
The Run Flat Indicator* has been
switched off due to an error.

Have the Run Flat Indicator* checked by an autho-
rized Mercedes-Benz Center.
Warning!
G
Do not drive with a flat tire. A flat tire affects
the ability to steer or brake the vehicle.You
may lose control of the vehicle. Continued
driving with a flat tire will cause excessive
heat build-up and possibly a fire.

Page 396 of 514

395 Practical hints
What to do if …?
Symbol messagesDisplay symbol
Display message
Possible cause/consequence
Possible solution
#
Visit workshop
The battery is no longer charging.
Possible causes:
broken poly-V-belt

alternator malfunctioning

Stop immediately in a safe location or
as soon as it is safe to do so and check
the poly-V-belt.
If it is broken:

Do not continue to drive. Otherwise
the engine will overheat due to an
inoperative water pump which may
result in damage to the engine. Notify
an authorized Mercedes-Benz Center.
If it is intact:

Drive immediately to the nearest
authorized Mercedes-Benz Center.
Low voltage
Charge battery
The battery has insufficient voltage.

Start the engine (
page 48).
Low voltage
Switch off
consumers
The battery has insufficient voltage.

Turn off unnecessary electrical con-
sumers.

Page 397 of 514

396 Practical hintsWhat to do if …?Display symbol
Display message
Possible cause/consequence
Possible solution
2
Brake wear
Visit workshop
The brake pads have reached their wear
limit.

Have the brake pads replaced as soon
as possible.
;
(USA only)
!
(Canada only)
Release parking
brake
You are driving with the parking brake set.

Release the parking brake
(page 50).
3
Brake fluid
Visit workshop
There is insufficient brake fluid in the res-
ervoir.

Risk of accident! Stop the vehicle in a
safe location as soon as possible and
notify an authorized Mercedes-Benz
Center. Do not add brake fluid! This
will not solve the problem.
Warning!
G
Driving with the message “
Brake fluid
Visit workshop
” displayed can result in
an accident. Have your brake system
checked immediately. Do not add brake flu-
id before checking the brake system. Over-
filling the brake fluid reservoir can result in
spilling brake fluid on hot engine parts and
the brake fluid catching fire. You can be se-
riously 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.
!Brake pad thickness must be visually
checked by a qualified technician at the
intervals specified in the Maintenance
Booklet.

Page 398 of 514

397 Practical hints
What to do if …?
Display symbol
Display message
Possible cause/consequence
Possible solution
ú
Visit workshop
There may be a malfunction in the
fuel injection system

ignition system

exhaust system

fuel system

Have the measuring system checked
by an authorized Mercedes-Benz Cen-
ter.
B
Coolant
Check level
The coolant level is too low.

Add coolant (
page 327).

If you have to add coolant frequently,
have the cooling system checked by
an authorized Mercedes-Benz Center.
Warning!
G
Do not spill antifreeze on hot engine parts.
Antifreeze contains ethylene glycol which
may burn if it comes into contact with hot
engine parts. You can be seriously burned.
!Do not ignore the low engine coolant
level warning. Extended driving with
the message and symbol displayed
may cause serious engine damage not
covered by the Mercedes-Benz Limited
Warranty.
Do not drive without sufficient amount
of coolant in the cooling system. The
engine will overheat, causing major en-
gine damage.

Page 399 of 514

398 Practical hintsWhat to do if …?
During severe operating conditions and
stop-and-go city traffic, the coolant tem-
perature may rise close to 248°F (120°C).
Display symbol
Display message
Possible cause/consequence
Possible solution

Coolant
Stop, engine off
The coolant is too hot.

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

Only start the engine again after the
message disappears. You could other-
wise damage the engine.
Warning!
G
Driving when your engine is badly overheat-
ed 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 and can occur just by opening
the hood. Stay away from the engine 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.
!The engine should not be operated with
the coolant temperature above 248°F
(120°C). Doing so may cause serious
engine damage which is not covered by
the Mercedes-Benz Limited Warranty.

Page 400 of 514

399 Practical hints
What to do if …?
Display symbol
Display message
Possible cause/consequence
Possible solution

Coolant
Stop, engine off
The poly-V-belt could be broken.

Stop the vehicle in a safe location or as soon
as it is safe to do so and immediately turn off
the engine.

Check the poly-V-belt.
If it is broken:

Do not continue to drive. Otherwise the en-
gine will overheat due to an inoperative water
pump which may result in damage to the en-
gine. Notify an authorized Mercedes-Benz
Center.
If it is intact:

Do not continue to drive the vehicle with this
message displayed. Doing so could result in
serious engine damage that is not covered by
the Mercedes-Benz Limited Warranty.

Drive immediately to the nearest authorized
Mercedes-Benz Center.
Coolant
Visit workshop
The cooling fan for the coolant is mal-
functioning.

Observe the coolant temperature display.

Have the fan replaced as soon as possible.

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