2007 MERCEDES-BENZ CLK350 ignition

354 Operation
Maintenance
Clearing the maintenance service
indicator message
The maintenance service indicator mes-
sage is automatically cleared after approx-
imately 30 seconds when you switch on
the ignition or when reaching the mainte-
nance service threshold while driving.
You can also clear it yourself.
1Reset button
Press reset button 1 on the
instrument cluster.The maintenance service indicator
message is cleared and the standard
display appears in the multifunction
display (
page 145).
Maintenance service term exceeded
If you have exceeded the suggested
maintenance service term, you will see the
following message in the multifunction
display:
Service A exceeded by XXXXX miles (km)
Service A exceeded by XXX days
In addition, a signal sounds when the
message appears.
Any authorized Mercedes-Benz Center will
reset the maintenance service indicator
following a completed maintenance
service.
iVehicles equipped with FSS (Flexible Ser-
vice S
ystem) only (Canada vehicles, depending
on vehicle production date):

FSS evaluates engine temperature, oil level,
vehicle speed, engine speed, distance driven
and the time elapsed since your last service
and calculates other maintenance service
work required.

The interval between maintenance services
depends on your driving habits. A gentle
driving style, moderate engine speeds and
the avoidance of short-distance trips will
lengthen the interval between services.

355 Operation
Maintenance
Calling up the maintenance service
indicator display
You can call up the maintenance service in-
dicator display at any time to check when
the next maintenance service is due.
Switch on the ignition (page 38).
Press buttonè orÿ on the mul-
tifunction steering wheel repeatedly
until the standard display appears in
the multifunction display (
page 145).
Press buttonkorjuntil the
maintenance service indicator display
with the service symbol9or½
and the service deadline appears in the
multifunction display.Resetting the maintenance service
indicator
In the event that the maintenance service
on your vehicle is not carried out by an
authorized Mercedes-Benz Center, you can
have the maintenance service indicator
reset. The automotive maintenance facility
carrying out the maintenance service will
find the information for resetting the
maintenance service indicator in the
maintenance-relevant information for your
vehicle. Such information is available from
either your authorized Mercedes-Benz
Center or directly from Mercedes-Benz.iIf the battery is disconnected, the days of
disconnection will not be included in the count
shown by the maintenance service indicator. To
arrive at the true maintenance service deadline,
you will need to subtract these days from the
days shown in the maintenance service indicator
message or maintenance service indicator dis-
play.
Do not confuse the maintenance service indica-
tor with the engine oil level indicator:.
iIf the maintenance service indicator was in-
advertently reset, have an authorized
Mercedes-Benz Center correct it.
Only reset if the proper maintenance service has
been performed. Resetting the system without
performing the proper service as called for by
the maintenance service indicator will result in
engine damage and/or other vehicle damage not
covered by the Mercedes-Benz Limited Warran-
ty.

369 Practical hints
What to do if …?
ProblemPossible cause/consequenceSuggested solution
ú
±(USA only)
(Canada only)The yellow engine
malfunction indi-
cator 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 ex-
cessive emissions values and may
switch the engine to its Limp-Home
Mode (emergency operation).
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 accu-
rate identification 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.
iIn some states you may be required by law
to have the vehicle serviced immediately as soon
as the engine malfunction indicator lamp comes
on. Check local requirements.

379 Practical hints
What to do if …?
On the pages that follow, you will find a
compilation of the most important warning
and malfunction messages that may
appear in the display.
For your convenience the messages are
divided into two sections:

Text messages (page 380)

Symbol messages (page 388)
Warning!G
No messages will be displayed if either the
instrument cluster or the multifunction
display is inoperative.
As a result, you will not be able to see infor-
mation about your driving conditions, such
as speed or outside temperature, warn-
ing/indicator lamps, malfunction/warning
messages or the failure of any systems.
Driving characteristics may be impaired.
If you must continue to drive, please do so
with added caution. Visit an authorized
Mercedes-Benz Center as soon as possible.
iSwitching on the ignition causes all
instrument cluster lamps (except low beam
headlamp indicator lamp, high beam headlamp
indicator lamp, and turn signal indicator lamps
unless activated) as well as the multifunction dis-
play to come on. Make sure the lamps and the
multifunction display are in working order before
starting your journey.

382 Practical hints
What to do if …?
Display messagePossible cause/consequencePossible solution
Front passenger
airbag
enabled
See Operator’s
ManualFront passenger front air bag is
activated while driving even though
a child, small individual, or object
below the system’s weight
threshold is on the front passenger
seat, or the front passenger seat is
empty. Objects on the seat or
forces acting on the seat may
make the system sense supple-
mental 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 36).
Remove child and child restraint from front passenger seat and proper-
ly secure the child in rear seat employing the child restraint if neces-
sary.
Make sure that no objects applying supplemental weight onto the seat
are present. The system may recognize such supplemental weight and
sense that an occupant on the front passenger seat is of a greater
weight than actually present.
Keep the seat unoccupied, close the front passenger door and switch
on the ignition (
page 36).
(Continued on next page)

383 Practical hints
What to do if …?
Display messagePossible cause/
consequencePossible solution
Monitor the 56indicator lamp on the center console (page 29) and the mul-
tifunction display in the instrument cluster (
page 26) 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 71) 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. Depend-
ing on the front passenger classification sensed by the OCS (
page 71), 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.

384 Practical hints
What to do if …?
Display messagePossible cause/consequencePossible solution
Front passenger
airbag
disabled
See Operator’s
ManualFront 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 36).
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 36).
(Continued on next page)

385 Practical hints
What to do if …?
Display messagePossible cause/
consequencePossible solution
Monitor the 56indicator lamp on the center console (page 29) and the mul-
tifunction display in the instrument cluster (
page 26) 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 71) 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. Depend-
ing on the front passenger classification sensed by the OCS (
page 71), 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 anypassenger use the front passenger seat until
the system has been repaired.