2006 MERCEDES-BENZ C230 Sys

371 Practical hints
What to do if …
Display symbol
Display message
Possible cause/consequence
Possible solution
B
Coolant
Check level
The coolant level is too low.

Add coolant (
page 301).

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
engine damage.

374 Practical hintsWhat to do if …Display symbol
Display message
Possible cause/consequence
Possible solution
Ñ
Cruise contr.
Drive to workshop
Cruise control is malfunctioning.

Visit an authorized Mercedes-Benz
Center.
G
Display malfunction
Visit workshop
The instrument cluster display is
malfunctioning.

Continue driving with added caution.

Visit an authorized Mercedes-Benz
Center as soon as possible.
The displays for several systems have
malfunctioned. Some systems them-
selves may also have malfunctioned.

Have the electronic systems checked
by an authorized Mercedes-Benz
Center.
±
Display malfunction
Visit workshop
Certain electronic systems are unable to
relay information to the control system.
The following systems may have failed:

Coolant temperature display


Tachometer


Cruise control display

Have the electronic systems checked
by an authorized Mercedes-Benz
Center.
J
Doors open
You are attempting to drive with one or
more doors open.

Close the doors.

376 Practical hintsWhat to do if …Display symbol
Display message
Possible cause/consequence
Possible solution
4
Check gas cap.
See Operator’s Manual
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 294).
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.
Y
Hood open
You are attempting to drive with the hood
open.

Close the hood (
page 297).
I
Remove key.
You have forgotten to remove the
SmartKey.

Remove the SmartKey from the starter
switch.
Replace key
Drive to workshop
No additional code available for
SmartKey.

Change the SmartKey.

377 Practical hints
What to do if …
Display symbol
Display message
Possible cause/consequence
Possible solution
.
3rd brake lamp
The high mounted brake lamp is
malfunctioning. This message will only
appear if all light emitting diodes have
stopped working.

Visit an authorized Mercedes-Benz
Center as soon as possible.
Backup lamp, left
The left backup lamp is malfunctioning.

Replace the bulb as soon as possible.
Backup lamp, right
The right backup lamp is malfunctioning.

Replace the bulb as soon as possible.
Brake lamp
Drive to workshop
Brake lamp illumination is delayed or
lamp is permanently on.

Visit an authorized Mercedes-Benz
Center as soon as possible.
Brake lamp left
The left brake lamp is malfunctioning.

Replace the bulb as soon as possible.
Brake lamp right
The right brake lamp is malfunctioning.

Replace the bulb as soon as possible.
Display malfunction.
Visit workshop
The display for the lamps or the system is
malfunctioning.

Visit an authorized Mercedes-Benz
Center as soon as possible.
Front foglamp left
The left front fog lamp is malfunctioning.

Visit an authorized Mercedes-Benz
Center as soon as possible.
Front foglamp right
The right front fog lamp is malfunctioning.

Visit an authorized Mercedes-Benz
Center as soon as possible.
Front left
side marker lamp
The left front side marker lamp is
malfunctioning.

Visit an authorized Mercedes-Benz
Center as soon as possible.
Front right
sider marker lamp
The right front side marker lamp is
malfunctioning.

Visit an authorized Mercedes-Benz
Center as soon as possible.

378 Practical hintsWhat to do if …Display symbol
Display message
Possible cause/consequence
Possible solution
.
High beam left
The left high beam lamp is
malfunctioning.

Replace the bulb as soon as possible.
High beam right
The right high beam lamp is
malfunctioning.

Replace the bulb as soon as possible.
License plate lamp,
left
The left license plate lamp is
malfunctioning.

Replace the bulb as soon as possible.
License plate lamp,
right
The right license plate lamp is
malfunctioning.

Replace the bulb as soon as possible.
Light sensor
Drive to workshop
The lamp sensor is malfunctioning.
The headlamps switch on automatically.

In the control system, set lamp
operation to manual (
page 149).

Switch on the headlamps using the
exterior lamp switch (
page 118).

Visit an authorized Mercedes-Benz
Center as soon as possible.
Low beam left
The left low beam lamp is malfunctioning.
Halogen headlamp:
Replace the bulb as soon as possible.
Bi-Xenon* headlamp:

Visit an authorized Mercedes-Benz
Center as soon as possible.

381 Practical hints
What to do if …
Display symbol
Display message
Possible cause/consequence
Possible solution
<
Belt system
Drive to workshop
The seat belt system is malfunctioning.

Visit an authorized Mercedes-Benz
Center as soon as possible.
_
Steering oil
Visit workshop
The steering gear oil level is too low.
There is a danger of steering gear
damage.

Have the system checked by an
authorized Mercedes-Benz Center.
Warning!
G
If the level of steering gear oil in reservoir is
too low, the steering power assistance could
fail. Much greater effort will then be needed
to turn the steering wheel.
Do not add steering oil without checking the
steering system.
Do not drive the vehicle. Have the system
checked at an authorized Mercedes-Benz
Center as soon as possible.

382 Practical hintsWhat to do if …Display symbol
Display message
Possible cause/consequence
Possible solution
K
Close slid./pop-up
sunroof
You have opened the driver’s door with
the SmartKey removed from the starter
switch and the sliding portion of the
tilt/sliding sunroof* open.

Close the tilt/sliding sunroof*
(page 244).
J
Close slid./pop-up
sunroof
You have opened the driver’s door with
the SmartKey removed from the starter
switch and the tilting portion of the
tilt/sliding sunroof* open.

Close the tilt/sliding sunroof*
(page 244).
L
Tele Aid malfunction.
Drive to workshop
One or more main functions of the Tele
Aid system* are malfunctioning.

Have the Tele Aid system* checked by
an authorized Mercedes-Benz Center.
t
Function unavailable
This display appears if buttont
ors on the multifunction steering
wheel is pressed and the vehicle is not
equipped with a telephone*.
Ê
Trunk open
You are attempting to drive with the trunk
open.

Close the trunk.
W
Washer fluid
please refill
The fluid level has dropped to
about
1/3of total reservoir capacity.

Add washer fluid (
page 303).

389 Practical hints
Unlocking/locking in an emergency
Unlocking/locking in an emergency
Unlocking the vehicle
If you are unable to unlock the vehicle with
the SmartKey, open the driver’s door and
the trunk using the mechanical key. Removing the mechanical key
1Mechanical key locking tab
2Mechanical key

Move locking tab1 in direction of
arrow.

Slide mechanical key2 out of the
housing.Unlocking the driver’s door
1Unlocking

Insert the mechanical key into the
driver’s door lock until it stops.

Turn the mechanical key counterclock-
wise to position1.
The driver’s door is unlocked.
iUnlocking and opening the driver’s
door and/or the trunk with the
mechanical key will trigger the
anti-theft alarm system*.
To cancel the alarm, do one of the
following:

Press buttonŒ or‹ on the
SmartKey.


Insert the SmartKey in the starter
switch.