check engine light MERCEDES-BENZ C-CLASS SALOON 2007 Owners Manual

5
Central locking
Automatic (on-board computer,
luxury multi-function steering
wheel) . . . . . . . . . . . . . . . . . . . . . .143
Key . . . . . . . . . . . . . . . . . . . . . . . . . .76
KEYLESS GO . . . . . . . . . . . . . . . . . .78
Central locking/unlocking button . ..8 0
Central unlocking Key . . . . . . . . . . . . . . . . . . . . . . . . . .76
KEYLESS GO . . . . . . . . . . . . . . . . . .78
Centre console
Lower section . . . . . . . . . . . . . . . . . .39
Upper section . . . . . . . . . . . . . . . . . .38
Changing a wheel
see Flat tyr e
Child-proof locks
Rear door s.. . . . . . . . . . . . . . . . . . .66
Side windows (rear) . . . . . . . . . . . . .66
Children
Fastening seat belt s.. . . . . . . . . . ..64
In the vehicle . . . . . . . . . . . . . . . . . .53
Restraint systems . . . . . . . . . . . . . .54
Child seat
Automatic recognition . . . . . . . . . . .55
Automatic recognition (malfunc-
tion) . . . . . . . . . . . . . . . . . . . . . . . .278
Display message . . . . . . . . . . . . . .245
Integrated . . . . . . . . . . . . . . . . . . . .63
ISOFIX . . . . . . . . . . . . . . . . . . . . . . .61 Recommendation
s.. . . . . . . . . . . . .60
Suitable positions . . . . . . . . . . . . . .57
Cigarette lighter . . . . . . . . . . . . . . . .197
Cockpit Overview . . . . . . . . . . . . . . . . . . . . .24
Collapsible wheel
Technical data . . . . . . . . . . . . . . . .354
Combined luggage cover and net ..1 90
Constant headlamp mode see Daytime driving lights
Convenience closing . . . . . . . . . . . ..112
Convenience opening/closing feature Air-recirculation mode (Thermatic) 163
Air-recirculation mode
(Thermotronic) . . . . . . . . . . . . . . . .170
Coolan t. . . . . . . . . . . . . . . . . . . . . . . .209
Checking the level . . . . . . . . . . . . .209
Display message . . . . . . . . . . . . . .251
Display message (multi-function
steering wheel) . . . . . . . . . . . . . . .243
Mixture ratio . . . . . . . . . . . . . . . . .368
Temperature gauge . . . . . . . . . . . .123
Cooling with dehumidification
Thermatic . . . . . . . . . . . . . . . . . . . .163
Thermotronic . . . . . . . . . . . . . . . . .171
Cornering light
Display message . . . . . . . . . . . . . .253
Cruise control . . . . . . . . . . . . . . . . . .145
Display message . . . . . . . . . . . . . .246
Cup holde r. . . . . . . . . . . . . . . . . . . . .179 D
Dashboard see Instrument cluster
Dat e
Entering (on-board computer,
multi-function steering wheel) . . . .129
Setting (on-board computer,
luxury multi-function steering
wheel) . . . . . . . . . . . . . . . . . . . . . .142
Daytime driving lamps
On-board computer (luxury multi-
function steering wheel) . . . . . . . .143
Daytime driving lights . . . . . . . . . . ..103
Diese l
Low outside temperature s.. . . . ..206
Diesel engine
Winter driving . . . . . . . . . . . . . . . . .206
Digital speedometer . . . . . . . . . . . ..135
Dipped-beam headlamps Automatic headlamp mode . . . . . .103
Display message . . . . . . . . . . . . . .253
Symmetrical . . . . . . . . . . . . . . . . . .220
Display messag e. . . . . . . . . . . . . . . .236
ABS (luxury multi-function steer-
ing wheel) . . . . . . . . . . . . . . .248, 251
ABS (multi-function steering
wheel) . . . . . . . . . . . . . . . . . . . . . .238
Air cleaner . . . . . . . . . . . . . . . . . . .267
Battery . . . . . . . . . . . . . . . . . .249, 268 Index
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9
PASSENGER AIRBAG OFF . . .
.55, 277
Reserve fuel . . . . . . . . . . . . . . . . . .285
Seat belt . . . . . . . . . . . . . . . . . . . . .283
SRS . . . . . . . . . . . . . . . . . . . . .47, 283
Indicator and warning lamps . . . . ..279
Indicator lamp see Indicator and warning lamp
Instrument cluster . . . . . . . . . . . . ..123
On-board computer (luxury multi-
function steering wheel) . . . . . . . .141
Overview (luxury multi-function
steering wheel) . . . . . . . . . . . . . . . . .32
Overview (multi-function steering
wheel) . . . . . . . . . . . . . . . . . . . . . . .28
Selecting the language (on-board
computer, luxury multi-function
steering wheel ).. . . . . . . . . . . . . .141
Instrument lighting . . . . . . . . . . . . ..123
Integrated child seat . . . . . . . . . . . . ..63
Intelligent Light System . . . . . . . . ..106
Display message (luxury multi-
function steering wheel) . . . . . . . .261
On-board computer (luxury multi-
function steering wheel) . . . . . . . .142
Interior lighting . . . . . . . . . . . . . . . . .107
Automatic control . . . . . . . . . . . . .107
Manual control . . . . . . . . . . . . . . . .107
On-board computer (luxury multi-
function steering wheel) . . . . . . . .143
Reading lamp . . . . . . . . . . . . . . . . .107 Interior lighting delayed switch-off
On-board computer (luxury multi-
function steering wheel) . . . . . . . .143
Interior motion sensor . . . . . . . . . . ..72
ISOFIX Child seat securing system . . . . . . .61 J
Jack . . . . . . . . . . . . . . . . . . . . . . . . . . .234
Operation . . . . . . . . . . . . . . . . . . . .320
Jump-starting . . . . . . . . . . . . . . . . . . .328
Jump leads . . . . . . . . . . . . . . . . . . .328 K
Key . . . . . . . . . . . . . . . . . . . . . . . . . . . .76
Changing the battery . . . . . . . . . . .304
Checking the battery . . . . . . . . . . .304
Convenience closing . . . . . . . . . . .112
Display message . . . . . . . . . . . . . .268
Display message (multi-function
steering wheel) . . . . . . . . . . . . . . .244
Factory setting . . . . . . . . . . . . . .76, 77
Loss . . . . . . . . . . . . . . . . . . . . . . . .296
Malfunction . . . . . . . . . . . . . . . . . .296
Modifying the programming . . . . . . .76
KEYLESS GO . . . . . . . . . . . . . . . . . . . . .77
Button . . . . . . . . . . . . . . . . . . . . . . .85
Changing the battery . . . . . . . . . . .304
Checking the battery . . . . . . . . . . .304 Closing the boot lid automatically .
.84
Convenience closin g.. . . . . . . . ..113
Display message . . . . . . . . . . . . . .268
Display message (multi-function
steering wheel) . . . . . . . . . . . . . . .244
Factory settings . . . . . . . . . . . . . . . .78
Losing the key . . . . . . . . . . . . . . . .299
Malfunction . . . . . . . . . . . . . . . . . .298
Modifying the programming . . . . . . .78
Starting the engine . . . . . . . . . . . .114
Key position s
Key . . . . . . . . . . . . . . . . . . . . . . . . . .85
KEYLESS GO . . . . . . . . . . . . . . . . . .85
Kickdown . . . . . . . . . . . . . . . . . .120, 122 L
Lamps see Indicator and warning lamp
Language
Selecting (on-board computer,
luxury multi-function steerin g
wheel) . . . . . . . . . . . . . . . . . . . . . .141
Lashing eyelets . . . . . . . . . . . . . . . . .182
Licence plate lighting Display message . . . . . . . . . . . . . .262
Lighting
see Lights
Lights
Cornering light function . . . . . . . . .106
Dipped-beam headlamps . . . . . . . .103 Index
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Exterior view
23Function Pag
e 1 Boot
Opening and closing 80
Spare wheel 234
Vehicle tool kit 234
Battery (depending on the
engine)
324
Rear window heating
173
Rear lights
306
4 Opening and closing the
doors 76
5 Demisting the windscreen
162
Cleaning the windows 228
6
Sliding/tilting sunroof* 173
Panorama sliding sunroof* 176
7 Exterior mirrors
94 Functio
n Page
8 Windscreen wipers, opera-
tion
108
Cleaning the wiper blades 228
Replacing the wiper blades 312
9 Opening the bonnet
206
Engine oil 208
Coolant 209
Battery (depending on the
engine)
324
a Front lights
306
b Fitting the front towing ey
e 329
c Tyres and wheels
210
Checking the tyre pressure 213
Flat tyre, fitting the spare
wheel
313
d Fitting the rear towing ey
e 329 Function Page
e Fuel filler fla
p 204
Fuel requirements 204At a glance
* optional
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3

Occupant safet
y 47In particular, work relevant to safety or on
safety-related systems must be carried out
at a qualified specialist workshop. If this
work is not carried out correctly, the oper-
ating safety of your vehicle may be affec -
ted. There is a risk of an accident and injury .SRS (Supplemental Restraint System)
The SRS reduces the risk of occupants com-
ing into contact with the vehicle's interior in
the event of an accident.
The SRS consists of:
R The SRS warning lamp =
R Belt tensioners
R Belt force limiters
R Airbag s
The SRS warning lamp ==The SRS functions are checked regularly
when you turn on the ignition and when the
engine is running. Malfunctions can therefore
be detected in good time.
The = warning lamp in the instrumen t
cluster lights up when you switch on the igni -tion and goes out a few seconds after the
engine is started
. G
Risk of injury
If SRS is malfunctioning, individual systems
may be activated unintentionally or not be
triggered in the event of an accident with
heavy braking.
A malfunction has occurred if the =
warning lamp:
R does not light up when you switch on the
ignition
R does not go out after the engine has been
running for a few seconds
R lights up again once the engine is running
In this case, have SRS checked immedi-
ately at a qualified specialist workshop.
Triggering of belt tensioners, belt force
limiters and airbags In the event of a collision, the sensor in the
airbag control unit evaluates important phys-
ical data such as duration, direction and force
of the vehicle deceleration or acceleration.
Based on the evaluation of this data and
depending on the vehicle's rate of longitudi-
nal deceleration in a collision, in the firs
tstage the airbag control unit pre-emptively
triggers the belt tensioners.
The front airbags are only deployed if there is
an even higher rate of vehicle deceleration in
a longitudinal direction.
If your vehicle is fitted with adaptive dual-
stage front airbags, the front airbag is filled
with enough gas to reduce the risk of injuries
at the first deployment threshold. The front
airbag is only fully inflated if a second thresh-
old is reached within a few milliseconds due
to the control unit having detected further
deceleration.
i
The front belt tensioners can only be trig-
gered if the belt tongue is correctly
engaged in the seat belt buckle.
Criteria for triggering belt tensioners and
airbags
In the first stages of a collision, the sensor in
the airbag control unit evaluates physical
data such as duration, direction and rate of
vehicle deceleration or acceleration in order
to determine whether it is necessary to trig-
ger the belt tensioners and/or airbags.
The belt tensioner and airbag triggerin g
thresholds are variable and are adapted to the
rate of deceleration of the vehicle. This proc-
ess is pre-emptive in nature as the airba g Safety
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Opening and closing
78
Important notes R
If the KEYLESS GO key is removed from the
vehicle (in luggage or an article of clothing,
for instance), it will no longer be possible
to lock or start the vehicle .
R If the KEYLESS GO key is removed from the
vehicle while the engine is running, e.g. if
the front passenger leaves the vehicle with
the KEYLESS GO key, the following mes-
sage will appear in the multi-function dis-
play as you pull away: Key not detec-
ted.
R If the KEYLESS GO key is in the vehicle, the
vehicle can be started at any time. If you
have left the KEYLESS GO key in the vehi-
cle, you will see the following message in
the multi-function display when you lock
the vehicle: Key still in vehicle.
Factory settings X
To unlock centrally :pull the door handle.
The turn signals flash once. The locking
knobs in the doors pop up. The anti-thef t
alarm system* is deactivated.
When it is dark, the surround lighting also
comes on if it is activated in the on-board
computer. i
If you do not open either a door or the
boot lid/tailgate after you have unlocked
the vehicle, it will relock automatically after
approximately 40 seconds.
i It is possible that the vehicle may be inad-
vertently unlocked if the KEYLESS GO key
is within a maximum of one metre of the
vehicle and the door handle is splashed by
a gush of water or if you are cleaning the
door handle . 1
Sensor surface on the door handl e
X To lock centrally: touch sensor surface
1 on the door handle.
The turn signals flash three times. The lock-
ing knobs in the doors drop down. The anti- theft alarm system* and the immobiliser
are primed.
Individual settings You can change the setting of the lockin
g
system. When you now grasp the door handle
on the driver's door, you will only unlock the
driver's door and the fuel filler flap. This is
useful if you frequently travel on your own.
X To change the settings :press and hold
the k andj buttons of the key
simultaneously for approximately six sec-
onds until the battery check lamp flashes
twice.
The KEYLESS GO key will now function as fol-
lows:
X To unlock the driver's door: Pull the door
handle on the driver's door.
X To unlock centrally :Pull the door handle
on the front-passenger door or on the rear
doors.
X To lock centrally: touch sensor surface
1 on the door handle. Controls
* optional
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Driving sys
tems 14
9
You can set a variable or permanent limit
speed:
R Variable for speed limits, e.g. in built-up
areas
R Permanent for long-term speed restric-
tions, e.g. for driving on winter tyres
( Y page 151 ) G
Risk of accident
Speedtronic is only an aid designed to
assist driving. You are responsible for the
vehicle's speed and for braking in goo d
time.
i The speed indicated in the speedometer
may differ slightly from the limit speed
stored.
Variable Speedtronic You can operate cruise control* and variable
Speedtronic with the cruise control lever.
The LIM indicator lamp on the cruise control
lever indicates which system you have selec-
ted:
R
LIM indicator lamp off:
Cruise control* is selected
R LIM indicator lamp lit: Variable Speedtronic is selected
You can use the cruise control lever to restrict
the speed to any speed above 30 km/h while
the engine is running . 1
To store the current speed or a higher
speed
2 LIM indicator lamp
3 To select the current or last stored speed
4 To store the current speed or a lower
speed
5 To switch between cruise control* and
variable Speedtronic
6 To deactivate variable Speedtronic Selecting variable Speedtronic X
Check whether LIM indicator lamp 2is on.
If it is on, variable Speedtronic is already
selected.
If it is not, press the cruise control lever in
the direction of arrow 5.
LIM indicator lamp 2in the cruise control
lever lights up. Variable Speedtronic is
selected. G
Risk of accident
If there is a change of drivers, advise the
new driver of the limit speed stored.
Only use variable Speedtronic if you are
sure that you will not have to accelerate
suddenly to a speed above that stored as
the limit speed, otherwise you could cause
an accident.
You can only exceed the limit speed store d
if you deactivate variable Speedtronic :
R using the cruise control leve r
R if you depress the accelerator pedal
beyond the pressure point (kickdown )
It is not possible to deactivate variable
Speedtronic by braking. Controls
* optional
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Display
messages 24
2 Display messages Possible cause/consequence Possible solution
Check brake
fluid level
G
Risk of accident
There is insufficient brake fluid in the
brake fluid reservoir. In addition, the
3 warning lamp in the instrument clus-
ter lights up and a warning tone sounds. X
Pull over as soon as it is safe to do so.
X Do not continue driving under any circumstan-
ces .
X Consult the nearest qualified specialist work -
shop.
X Do not top up the brake fluid. This will not rec -
tify the malfunction. P
Shift to
P P
Shift to
P You have switched off the engine with the
KEYLESS GO* button and opened the driv-
er's door.
You have attempted to lock the vehicle. X
Move the selector lever to P.
The engine can be started again. To start
engine, shift
to either P or
N To start engine,
shift to either
P
or N You have attempted to start the engin
e
while the selector lever is not in position
P or N. X
Move the selector lever to Por N. Clean the fuel
filter X
Visit a qualified specialist workshop. Practical advice
* optional
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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
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Troubleshooting
28
2 Problem Possible cause/consequence Suggested solutions
D
The red coolant warning
lamp lights up while the
engine is running. You will
also hear a warning tone. The coolant temperature has
exceeded 130
†. The engine is
not being cooled sufficiently and
may be damaged .
The coolant level may be too low. X
Stop the vehicle as soon as possible. Pay attention to the traffic
conditions as you do so.
X Allow the engine and coolant to cool.
X Check the coolant level. Observe the warning note s
( Y page 209). Top up the coolant if necessary.
X Have the coolant system checked at a qualified specialist work-
shop if the coolant needs topping up more often than usual .
If the coolant level is correct, the radiator fan may be faulty. In this
case:
X Do not continue driving under any circumstances .
X Consult a qualified specialist workshop. ±
The yellow engine diagnos-
tic warning lamp lights up
while the engine is run-
ning. Vehicles with a diesel engine: the
fuel tank has run dry. X
Start the engine three to four times after refuelling.
Emergency running mode is cancelled. The vehicle need not be
checked. Practical advice
204_AKB; 2; 3, en-G
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Troubleshooting
28
3 Problem Possible cause/consequence Suggested solutions
±
The yellow engine diagnos-
tic warning lamp lights up
while the engine is run-
ning. There may be a malfunction:
R
in the fuel injection system or
R in the exhaust system or
R in the ignition system (on vehi-
cles with a petrol engine)
The emission limit values may be
exceeded and the engine may be
running in emergency mode. X
Have the vehicle checked as soon as possible at a qualified spe -
cialist workshop. =
The red SRS warning lamp
lights up while the engine
is running. G
Risk of injury
The restraint systems are faulty .
The airbags or belt tensioners
may either be triggered uninten-
tionally or, in the event of an acci-
dent, not be triggered at all. X
Visit a qualified specialist workshop immediately. <
The red seat belt warning
lamp lights up for 6 sec-
onds after the engine
starts up. 16 The seat belt warning lamp
reminds the driver and front
passenger to fasten their seat
belts. X
Fasten your seat belt (Y page 98). 16
Only for certain countries Practical advice
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