warning MERCEDES-BENZ C-CLASS SALOON 2007 Repair Manual

Display
messages 26
7 Display messages Possible cause/consequence Possible solution
. Switch off lights
or remove key The light switch is set to the
*position
or the daytime driving lights are switched
on and you have not removed the key. The
side lamps remain switched on. A warning
tone also sounds. X
Remove the key from the ignition lock.
or
X Turn the light switch to M. ò 4-button multi-function
steering wheel:
Replace air
cleane
r
12-button luxury multi-
function steering
wheel:
Replace air
cleane r The engine air filter must be replaced. X
Visit a qualified specialist workshop. N 4-button multi-function
steering wheel:
Check eng. oil
level
12-button luxury multi-
function steering
wheel:
Check eng. oil lev.
when next refuel
-
ling The engine oil level has dropped to a crit-
ical level. X
Check the engine oil level (Y page 208 )and top
up the engine oil if necessary .
X Have the engine checked for leaks if the engine
oil needs topping up more often than usual . Practical advice
204_AKB; 2; 3, en-GB
mkalafa,
2007-06-26T23:11:51+02:00 - Seite 267 Z

Display
messages 26
8 Display messages Possible cause/consequence Possible solution
I 4-button multi-function
steering wheel:
Change batter
y
12-button luxury multi-
function steering
wheel:
Change key batter -
ies The KEYLESS GO* key batteries are dis-
charged. X
Change the batteries (Y page 304). I Key not detected
The KEYLESS GO key* is not detected
while the engine is running because it is
not inside the vehicle or because of strong
radio interference. A warning tone also
sounds.
Once the engine is switched off, you will
no longer be able to lock the vehicle cen-
trally or start the engine. X
Stop the vehicle. Pay attention to the traffic
conditions as you do so.
X Locate the KEYLESS GO key* or operate the
vehicle using the key in the ignition lock. I Key not detected
The KEYLESS GO* key cannot be detec-
ted. X
Change the location of the KEYLESS GO key*
within the vehicle .
X Operate the vehicle using the key in the ignition
lock if necessary. Practical advice
* optional
204_AKB; 2; 3, en-GB
mkalafa,
2007-06-26T23:11:51+02:00 - Seite 268

Display
messages 26
9 Display messages Possible cause/consequence Possible solution
I 4-button multi-function
steering wheel:
Key still in vehi-
cle
12-button luxury multi-
function steering
wheel:
Key still in vehi-
cle
The KEYLESS GO key* was detected in the
vehicle when you attempted to lock the
vehicle. X
Remove the KEYLESS GO key* from the vehi-
cle . I 4-button multi-function
steering wheel:
You need a new key
12-button luxury multi-
function steering
wheel:
Replace key The key no longer functions. X
Visit a qualified specialist workshop. I Key does not belong
to vehicle You have put the wrong key in the ignition
lock. X
Use the correct key. I Close doors to lock
vehicle Not all doors were closed as you attemp-
ted to lock the vehicle. A warning tone
also sounds. X
Close all doors and lock the vehicle again . Practical advice
* optional
204_AKB; 2; 3, en-GB
mkalafa,
2007-06-26T23:11:51+02:00 - Seite 269 Z

Display
messages 27
0 Display messages Possible cause/consequence Possible solution
I 4-button multi-function
steering wheel:
Insert key
12-button luxury multi-
function steering
wheel:
Remove starting
button, then
insert key
KEYLESS GO* has malfunctioned or is
faulty. A warning tone also sounds. X
Pull out the KEYLESS GO* button from the igni-
tion lock (Y page 86).
X Start your vehicle using the KEYLESS GO* key
in the ignition lock. ? Rear left seat
backrest not
locked
or
Rear right seat
backrest not
locked The rear seat backrest is not engaged on
the left-hand or right-hand side. A warning
tone also sounds. X
Fully engage the rear seat backrest
(Y page 186). Practical advice
* optional
204_AKB; 2; 3, en-GB
mkalafa,
2007-06-26T23:11:51+02:00 - Seite 270

Display
messages 27
1 Display messages Possible cause/consequence Possible solution
= 4-button multi-function
steering wheel:
Malfunction -Work-
shop-
12-button luxury multi-
function steering
wheel:
Restraint sys.
malfunction Con-
sult workshop The SRS (Supplemental Restraint System)
is faulty. The
=warning lamp also
lights up in the instrument cluster. X
Visit a qualified specialist workshop. Practical advice
204_AKB; 2; 3, en-GB
mkalafa,
2007-06-26T23:11:51+02:00 - Seite 271 Z

Display
messages 27
2 Display messages Possible cause/consequence Possible solution
= 4-button multi-function
steering wheel:
FL malfunc. -Work-
shop-
or
FR malfunc. -Work-
shop-
12-button luxury multi-
function steering
wheel:
Front left mal-
function Consul
t
workshop
or
Front right mal-
function Consult
workshop The SRS (Supplemental Restraint System)
is malfunctioning at the front left or the
front right. The
=warning lamp also
lights up in the instrument cluster. X
Visit a qualified specialist workshop. Practical advice
204_AKB; 2; 3, en-GB
mkalafa,
2007-06-26T23:11:51+02:00 - Seite 272

Display
messages 27
3 Display messages Possible cause/consequence Possible solution
= 4-button multi-function
steering wheel:
RL malfunc. -Work-
shop-
or
RR malfunc. -Work-
shop-
12-button luxury multi-
function steering
wheel:
Rear left malfunc-
tion Consult work-
shop
or
Rear right mal-
function Consul
t
workshop The SRS (Supplemental Restraint System)
is malfunctioning at the rear left or the
rear right. The
=warning lamp also
lights up in the instrument cluster. X
Visit a qualified specialist workshop. Practical advice
204_AKB; 2; 3, en-GB
mkalafa,
2007-06-26T23:11:51+02:00 - Seite 273 Z

Display
messages 27
4 Display messages Possible cause/consequence Possible solution
= 4-button multi-function
steering wheel:
R.cent.malf.
-
Workshop-
12-button luxury multi-
function steering
wheel:
Rear centre mal-
function Consult
workshop The rear centre SRS (Supplemental
Restraint System) is faulty. The
=
warning lamp also lights up in the instru-
ment cluster. X
Visit a qualified specialist workshop. = Left windowbag
malfunction Con-
sult workshop
or
Right windowbag
malfunction Con-
sult workshop The left-hand or right-hand windowbag is
faulty. The
=warning lamp also light s
up in the instrument cluster. X
Visit a qualified specialist workshop. W 4-button multi-function
steering wheel:
Reserve fuel level
12-button luxury multi-
function steering
wheel:
Reserve fuel level The level of fuel has fallen below the
reserve range
. X
Refuel at the nearest filling station .Practical advice
204_AKB; 2; 3, en-GB
mkalafa,
2007-06-26T23:11:51+02:00 - Seite 274

Troubleshooting
27
6 Troubleshooting
G
Risk of accident and injury
Always have maintenance work carried out at a qualified specialist workshop which has the necessary specialist knowledge and tools to
carry out the work required .
Mercedes-Benz recommends that you use a Mercedes-Benz Service Centre for this purpose.
In particular, work relevant to safety or on safety-related systems must be carried out at a qualified specialist workshop. The operating
safety of the vehicle can be affected if this work is carried out incorrectly. There is a risk of accident and injury. Indicator and warning lamps in switches and buttons
Problem Possible cause/consequence Suggested solutions
The seat heating* has switched
itself off prematurely or cannot
be switched on. There is insufficient voltage
because too many consumers are
switched on. X
Switch off consumers that are not required, e.g. reading lamps ,
interior lighting, etc .
The seat heating* will automatically switch back on as soon as
there is sufficient voltage again. The warning lamp on the sport
button of the ADVANCED AGILITY
package with sports mode* is lit. If you select comfortable mode
and the indicator lamp does not
go out, the ADVANCED AGILITY
package with sports mode* is
faulty. X
Visit a qualified specialist workshop. Practical advice
* optional
204_AKB; 2; 3, en-GB
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2007-06-26T23:11:51+02:00 - Seite 276

Troubleshooting
27
9 Indicator and warning lamps in the instrument cluster
Problem Possible cause/consequence Suggested solutions
-
The yellow ABS warning
lamp lights up while the
engine is running. G
Risk of accident
ABS, ESP ®
, BAS, PRE–SAFE ®
*,
hill start assist and ESP ®
trailer
stabilisation are unavailable du e
to a malfunction.
The brake system continues to
function normally, but without
the functions listed above. Th e
wheels could therefore lock if you
brake hard, for example. X
Drive on carefully.
X Observe the additional messages in the multi-function display
(Y page 236).
X Visit a qualified specialist workshop as soon as possible. v
The yellow ESP ®
warning
lamp lights up while th e
engine is running. G
Risk of accident
ESP ®
is deactivated. ES P®
will
not stabilise the vehicle if it start s
to skid or if a wheel starts to spin. X
Reactivate ES P®
(Y page 68).
Exceptions (Y page 68).
X Adapt your driving style to suit the road and weather conditions. G
Risk of accident
ESP ®
is not available due to a
malfunction. ESP ®
will not stabi-
lise the vehicle if it starts to skid
or if a wheel starts to spin . X
Observe the additional messages in the multi-function display
(Y page 236).
X Drive on carefully.
X Visit a qualified specialist workshop. Practical advice
* optional
204_AKB; 2; 3, en-GB
mkalafa,
2007-06-26T23:11:51+02:00 - Seite 279 Z