2006 MERCEDES-BENZ CLK COUPE ignition

371 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.
High priority messages appear in red color.
For your convenience the messages are
divided into two sections:

Text messages (
page 372)


Symbol messages (
page 382)
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
display to come on. Make sure the
lamps and the multifunction display are
in working order before starting your
journey.

376 Practical hintsWhat to do if …?Display message
Possible cause/consequence
Possible solution
Front passenger
air bag
activated
see Oper.’s Man.
Front 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 34).

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 34).
(Continued on next page)

377 Practical hints
What 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 77) 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 77), 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.

378 Practical hintsWhat 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)

379 Practical hints
What 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 77) 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 77), 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.

384 Practical hintsWhat 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 314).

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.

433 Practical hints
Towing the vehicle
Warning!
G
Prior to towing the vehicle with all wheels on
the ground, make certain that the SmartKey
is in starter switch position
2.
If the SmartKey is left in starter switch posi-
tion
0 for an extended period of time, it can
no longer be turned in the switch. In this
case, the steering is locked. To unlock, re-
move SmartKey from starter switch and re-
insert.
If circumstances require towing the vehicle
with all wheels on the ground, always tow
with a tow bar if:


the engine will not run


there is a malfunction in the power sup-
ply or in the vehicle’s electrical system
as that will be necessary to adequately con-
trol the towed vehicle.
Warning!
G
With the engine not running, there is no
power assistance for the brake and steering
systems. In this case, it is important to keep
in mind that a considerably higher degree of
effort is necessary to brake and steer the ve-
hicle. Adapt your driving accordingly.iTo signal turns while being towed with
the hazard warning flasher in use,
switch on the ignition and activate the
combination switch for the left or right
turn signal in the usual manner – only
the selected turn signal will operate.
Upon canceling the turn signal, the haz-
ard warning flasher will operate again.
!When towing the vehicle with all wheels
on the ground, please note the follow-
ing:
With the automatic central locking acti-
vated and the SmartKey in starter
switch position2, or KEYLESS-GO*
start/stop button in position2, the ve-
hicle doors lock if the left front wheel
as well as the right rear wheel are turn-
ing at vehicle speeds of approx. 9 mph
(15 km / h) or more.
Switch off the tow-away alarm
(page 95).
To prevent the vehicle door locks from
locking, deactivate the automatic cen-
tral locking (
page 163).
Towing of the vehicle should only be
done using the properly installed tow-
ing eye bolt. Never attach tow cable,
tow rope or tow rod to the vehicle chas-
sis, frame or suspension parts.

475 Index
High beam headlamps 135
Indicator lamp 25
Messages in display 392
Replacing bulbs (Bi-Xenon*) 412
Replacing bulbs (Halogen) 412, 414
Replacing bulbs for
high beam flasher (Bi-Xenon*) 416
Switching on 52, 132
High mounted brake lamp 413
Hood 308
Message in display 390
Horn 23
HVAC see Climate control system
Hydroplaning 299
I
Identification labels 442
Identification number, Vehicle (VIN) 442
Ignition
with KEYLESS-GO* 36
with SmartKey 34
Immobilizer 93
Indicator lamps see
Lamps, indicator and warning
Infant and child restraint systems see
Children in the vehicleInflation pressure see
Tires,Inflation pressure
Inside door handle 30, 110
Instrument cluster 24, 140, 463
Cleaning 357
Illumination brightness 140
Lamps in 360–367
Messages in display see
Multifunction display messages
Multifunction display 144
Instrument lighting see Instrument cluster,
Illumination brightness
Instrument panel see Instrument cluster
Instruments and controls see Cockpit
Interior lighting 138
Delayed shut-off 163
Interior rear view mirror 43, 181
Antiglare position 180
Auto-dimming 181
Interior storage spaces see
Storage compartments
J
Jack 398
Jacking up the vehicle 421
Jump starting 430K
Key, Mechanical 404
Key, SmartKey 98
Batteries 102, 108
Battery check lamp 101, 107
Changing batteries 410
Factory setting 100, 101
Ignition 34
Locking/unlocking 32, 60, 98
Locking/unlocking,
Global setting 100
Locking/unlocking,
Selective setting 101
Loss of 102, 110
Message in display 390
Opening and closing the
power tilt/sliding sunroof* 252
Opening and closing the
power windows 249
Positions in starter switch 34
Remote control 98
SmartKey with KEYLESS-GO* 103
Starting the engine 49
Turning off the engine 58
Unlocking/opening trunk lid 102