2007 MERCEDES-BENZ C230 Symbol message

348 Practical hints
What to do if …
When the message Check oil level at
next gas station
appears while the en-
gine is running and at operating tempera-
ture, the engine oil level has dropped to
approximately the minimum level.
When this occurs, the warning will first
come on intermittently and then stay on if
the oil level drops further.Visually check for oil leaks. If no obvious oil
leaks are noted, drive to the nearest
service station where the engine oil should
be topped to the required level with an
approved oil specified in the Factory
Approved Service Products pamphlet.
Display symbolDisplay messagePossible cause/consequencePossible solution
±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.
:Check oil level
at next gas stationThe engine oil has dropped to a critical
level.Check the engine oil level
(
page 276) and add oil as required
(
page 277).
If you must add engine oil frequently,
have the engine checked for possible
leaks.
!The engine oil level warnings should not be
ignored. Extended driving with the symbol dis-
played could result in serious engine damage
that is not covered by the Mercedes-Benz Limit-
ed Warranty.

349 Practical hints
What to do if …
Display symbolDisplay messagePossible cause/consequencePossible solution
4Gas cap
is openA 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 271).
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.
IRemove keyYou have forgotten to remove the
SmartKey.Remove the SmartKey from the starter
switch.
Get a new
keyNo additional code available for
SmartKey.Change the SmartKey.
.3rd brake
lampThe high mounted brake lamp is
malfunctioning.Contact an authorized Mercedes-Benz
Center as soon as possible.
AUTO-Light
inoperativeThe light sensor is malfunctioning.
The headlamps switch on automatically.In the control system, set lamp opera-
tion to manual mode (
page 139).
Switch on the headlamps using the
exterior lamp switch.
Contact an authorized Mercedes-Benz
Center as soon as possible.

350 Practical hints
What to do if …
Display symbolDisplay messagePossible cause/consequencePossible solution
.Brake lamp
leftThe left brake lamp is malfunctioning.Replace the bulb as soon as possible
(
page 373).
Brake lamp
rightThe right brake lamp is malfunctioning.Replace the bulb as soon as possible
(
page 373).
Front
foglamp
leftThe left front fog lamp is malfunctioning.Contact an authorized Mercedes-Benz
Center as soon as possible.
Front
foglamp
rightThe right front fog lamp is malfunctioning.Contact an authorized Mercedes-Benz
Center as soon as possible.
Front left
side marker
lampThe left front side marker lamp is
malfunctioning.Contact an authorized Mercedes-Benz
Center as soon as possible.
Front right
side marker
lampThe right front side marker lamp is
malfunctioning.Contact an authorized Mercedes-Benz
Center as soon as possible.
High beam
leftThe left high beam lamp is
malfunctioning.Replace the bulb as soon as possible
(
page 371).
High beam
rightThe right high beam lamp is
malfunctioning.Replace the bulb as soon as possible
(
page 371).

351 Practical hints
What to do if …
Display symbolDisplay messagePossible cause/consequencePossible solution
.License plate
lamp, leftThe left license plate lamp is
malfunctioning.Replace the bulb as soon as possible
(
page 374).
License plate
lamp, rightThe right license plate lamp is
malfunctioning.Replace the bulb as soon as possible
(
page 374).
Low beam
leftThe left low beam lamp is malfunctioning.Halogen headlamp:
Replace the bulb as soon as possible
(
page 370).
Bi-Xenon* headlamp:
Contact an authorized Mercedes-Benz
Center as soon as possible.
Low beam
rightThe right low beam lamp is
malfunctioning.Halogen headlamp:
Replace the bulb as soon as possible
(
page 370).
Bi-Xenon* headlamp:
Contact an authorized Mercedes-Benz
Center as soon as possible.
Parking lamp
front leftThe left front parking lamp is
malfunctioning.Replace the bulb as soon as possible
(
page 371).
Parking lamp
front rightThe right front parking lamp is
malfunctioning.Replace the bulb as soon as possible
(
page 371).

352 Practical hints
What to do if …
Display symbolDisplay messagePossible cause/consequencePossible solution
.Rear
fog lamp
Auxiliary bulb
onThe rear fog lamp is malfunctioning.
A substitute bulb is being used.Replace the bulb as soon as possible
(
page 373).
Reverse
lamp
leftThe left backup lamp is malfunctioning.Replace the bulb as soon as possible
(
page 373).
Reverse
lamp
rightThe right backup lamp is malfunctioning.Replace the bulb as soon as possible
(
page 373).
Switch off
lightsYou have removed the SmartKey from the
starter switch, opened the driver’s door
and left the headlamps on.Switch off the headlamps.
Tail lamp
left
Auxiliary bulb
on

The left tail lamp is malfunctioning.
A substitute bulb is being used.Replace the bulb as soon as possible
(
page 373).
Tail lamp
right
Auxiliary bulb
on

The right tail lamp is malfunctioning.
A substitute bulb is being used.Replace the bulb as soon as possible
(
page 373).

353 Practical hints
What to do if …
Display symbolDisplay messagePossible cause/consequencePossible solution
.Turn signal
front leftThe left front turn signal lamp is
malfunctioning.Replace the bulb as soon as possible
(
page 371).
Turn signal
front rightThe right front turn signal lamp is
malfunctioning.Replace the bulb as soon as possible
(
page 371).
Turn signal
left side
mirrorThe turn signal in the left exterior rear
view mirror is malfunctioning. This mes-
sage will only appear if a critical number
of LEDs have stopped working.Contact an authorized Mercedes-Benz
Center as soon as possible.
Turn signal
right side
mirrorThe turn signal in the right exterior rear
view mirror is malfunctioning. This mes-
sage will only appear if a critical number
of LEDs have stopped working.Contact an authorized Mercedes-Benz
Center as soon as possible.
Turn signal
rear left
Auxiliary bulb
onThe left rear turn signal lamp is malfunc-
tioning. A substitute bulb is being usedReplace the bulb as soon as possible
(
page 373).
Turn signal
rear right
Auxiliary bulb
onThe right rear turn signal lamp is malfunc-
tioning. A substitute bulb is being used.Replace the bulb as soon as possible
(
page 373).

354 Practical hints
What to do if …
Display symbolDisplay messagePossible cause/consequencePossible solution
_Steering oil
Visit workshopThe 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.

355 Practical hints
What to do if …
Display symbolDisplay messagePossible cause/consequencePossible solution
LTele Aid malfunction.
Drive to workshopOne or more main functions of the Tele
Aid system* are malfunctioning.Have the Tele Aid system* checked by
an authorized Mercedes-Benz Center.
tFunction unavailableThis display appears if buttont
ors on the multifunction steering
wheel is pressed and the vehicle is not
equipped with a telephone*.
WTop up
washer fluidThe fluid level has dropped to
about1/3of total reservoir capacity.
Add washer fluid (page 280).