2007 MERCEDES-BENZ C-CLASS SALOON check engine

Driving and pa
rking 11
3
On vehicles with a panorama sliding sun-
roof*:
X Press and hold the jbutton again until
the roller sunblinds *of the panorama slid-
ing sunroof* close.
With KEYLESS GO* :1
Sensor surface on the door handl e
X Touch the sensor surface on door han-
dle 1until the side windows and the slid-
ing/tilting sunroof* or panorama sliding
sunroof* are fully closed.
i Make sure you only touch sensor surface
1 . X
Check that all the side windows and th e
sliding/tilting sunroof* or panorama slid-
ing sunroof* are closed.
On vehicles with a panorama sliding sun-
roof*:
X Touch the sensor surface on door handle
1 again until the roller sunblinds of th e
panorama sliding sunroof * close. Driving and parking
Starting the engine
G
Risk of accident
Do not keep any objects in the driver's foot-
well. If you use a floormat or carpet in the
driver's footwell, make sure that they are
correctly secured and that there is suffi-
cient clearance for the pedals.
Objects could otherwise get between the
pedals in the event of sudden braking or
acceleration. You may then no longer be
able to brake, change gear or accelerate as
intended. This may result in an accident and
injury . G
Risk of poisoning
Never leave the engine running in enclose d
spaces. The exhaust gases contain carbon
monoxide. Inhaling exhaust fumes consti-
tutes a health hazard and could lead to loss
of consciousness or even death.
! Do not depress the accelerator pedal
when starting the engine.
i If you depress the brake when starting the
engine, pedal travel will be unusually long
and there will be less pedal resistance. Controls
* optional
204_AKB; 2; 3, en-GB
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Driving sys
tems 14
7
Selecting cruise control X
Check whether LIM indicator lamp 2is off .
If it is off, cruise control 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 is off. Cruise control is selected.
Storing and maintaining the current
speed You can store the current speed if you are
driving faster than 30 km/h.
X Accelerate the vehicle to the desired
speed.
X Press the cruise control lever briefly to the
pressure point, either upwards 1or down-
wards 4.
X Remove your foot from the accelerato r
pedal.
Cruise control is activated. The vehicle
automatically maintains the stored speed.
i Cruise control may be unable to maintai n
the stored speed on uphill gradients. Th e
stored speed is resumed when the gradient
evens out. Cruise control maintains the stored speed on downhill gradients by
automatically applying the brakes.
Vehicles with manual transmission:
R Always drive at adequate but not exces-
sive engine speeds .
R Change gear in good time.
R If possible, do not change down several
gears at a time.
Selecting the current or last stored
speed G
Risk of accident
Only select a stored speed if you know what
that speed is and whether it is suitable for
the current situation. Otherwise, sudden
acceleration or braking could endanger yo u
or others.
X Pull the cruise control lever briefly towards
you 3.
X Remove your foot from the accelerato r
pedal.
Cruise control is activated and adjusts the
vehicle's speed to the last speed stored. Setting a speed X
Press the cruise control lever beyond pres-
sure point 1for a higher speed or dow n
4 for a lower speed.
X Keep the cruise control lever pressed until
the desired speed is reached .
X Release the cruise control lever.
The new speed is stored.
i Cruise control is not deactivated if you
depress the accelerator pedal. For exam-
ple, if you accelerate briefly to overtake ,
cruise control adjusts the vehicle's speed
to the last speed stored after you have fin-
ished overtaking.
i Deceleration of the vehicle by means of
the cruise control lever is assisted by auto-
matic application of the brakes .
Vehicles with automatic transmission*:
On long downhill gradients, the automatic
transmission shifts down as a further meas-
ure. Controls
* optional
204_AKB; 2; 3, en-GB
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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
204_AKB; 2; 3, en-GB
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Engine compartment
208 Engine oil
Depending on how it is driven, the vehicl e
consumes a maximum of 0.8 l oil per 1,000
km. The oil consumption may be higher than
this when the vehicle is new or if you fre-
quently drive at high engine speeds. You can
only estimate the oil consumption after yo u
have driven a considerable distance.
You will find further information about engine
oil in the "Technical data" section
( Y page 336).
Checking the engine oil level Before checking the engine oil level the fol-
lowing conditions for the vehicle should be
met:
R
It should be parked on level ground
R The engine should be switched off for at
least five minutes if the engine was at nor-
mal operating temperature
R The engine should be switched off for at
least 30 minutes if the engine was not at
operating temperature (i.e. if you only star-
ted the engine briefly) Using the oil dipstick
Illustration: vehicle with a petrol engine
1
Oil dipstick
2 Upper mark
3 Lower mark Example illustration of a vehicle with a diese
l
engine
1 Oil dipstick
2 Upper mark
3 Lower mark
X Pull oil dipstick 1out of the oil dipstick
tube.
X Wide off oil dipstick 1.
X Insert oil dipstick 1into the oil dipstick
tube to the stop, and take it out again.
The oil level is correct if the level is between
lower mark 3and upper mark 2.
X Top up the oil if necessary (Y page 209).
i The difference in quantity between lower
mark 3and upper mark 2is approxi-
mately 2 litres. Operation
204_AKB; 2; 3, en-GB
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Engine compartment
209
Topping up the engine oil
Illustration: vehicle with a petrol engin
e
1 Cove r Example illustration of a vehicle with a diese
l
engine
1 Cove r X
Unscrew cap 1and remove it.
X Top up by the amount of oil required.
! Do not add too much oil. If too much oil
is added, there is a risk of damage to the
engine or the catalytic converter.
X Screw cap 1onto the filler neck. H
Environmental not
e
When topping up the oil, take care not to
spill any. Oil must not be allowed to escape
into the soil or waterways. You would oth-
erwise be damaging the environment . Coolan
t G
Risk of injury
The cooling system is pressurised. There-
fore, only unscrew the cap once the engine
has cooled down. This means the coolant
temperature gauge must display less than
70 °C. You could otherwise be scalded by
escaping hot coolant.
Coolant consists of water and antifreeze/cor -
rosion inhibitor. Only check the coolant leve l
when the vehicle is on a level surface and th e
engine has cooled down. Checking the coolant level The expansion tank is located in the engin
e
compartment on the right-hand side of the
vehicle . 1
Cove r
2 Expansion tank
3 Marker bar
X Slowly turn cap 1by half a turn anti-clock -
wise to allow excess pressure to escape.
X Turn cap 1further anti-clockwise and
remove it.
There is sufficient coolant in expansion
tank 2if the coolant is level with marker
bar 3in the filler neck when cold or
approximately 1.5 cm higher when hot .
X Top up the coolant if necessary. Operation
204_AKB; 2; 3, en-GB
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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
204_AKB; 2; 3, en-GB
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Display
messages 24
4 Display messages Possible cause/consequence Possible solution
Run Flat Indi-
cator inopera-
tiv
e Run Flat Indicator
inoperative The tyre pressure loss warning system is
deactivated due to a malfunction. X
Have the tyre pressure loss warning system
checked at a qualified specialist workshop .Check tyres
Restart system Check tyre pres-
sures then restart
Run Flat Indicator There was a tyre pressure warning mes-
sage. X
Make sure that the pressure is correct for all
tyres (Y page 213).
X Then restart the tyre pressure loss warning
system (Y page 214). Key not detec-
ted
The KEYLESS GO* key cannot be detected
while the engine is running because it is
either not in the vehicle or because ther
e
is strong radio interference. In addition, a
warning tone sounds.
Once the engine has been switched off ,
you will no longer be able to lock the vehi-
cle centrally or start the engine. X
Stop the vehicle as soon as the traffic condi -
tions permit.
X Locate the KEYLESS GO* key or operate the
vehicle using the key in the ignition lock. Key not detec-
ted
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. Key does not
belong to vehi-
cle You have put the wrong key in the ignition
lock. X
Use the correct key. Practical advice
* optional
204_AKB; 2; 3, en-GB
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Display
messages 25
2 Display messages Possible cause/consequence Possible solution
D 4-button multi-function
steering wheel:
Stop vehicl
e
Engine off
12-button luxury multi-
function steering
wheel:
Coolant Stop vehi-
cle Switch engine
off The poly-V-belt may have torn. A warning
tone also sounds. X
Stop the vehicle. Pay attention to the traffic
conditions as you do so.
X Switch off the engine.
X Check the poly-V-belt .
X If it is not damaged :do not start the engin e
again until the display message goes out. Ther e
is otherwise a risk of engine damage.
X If it has torn: do not drive on. Contact th e
nearest qualified specialist workshop .D The radiator's electric fan has failed. X
If the coolant temperature is less than 120 †
you can continue driving to the nearest quali-
fied specialist workshop .
X In doing so, avoid heavy loads on the engine
(e.g. driving in mountainous terrain) and stop-
and-go driving. H Top up coolant See
Owner's Manual The coolant level is too low. X
Top up the coolant, observing the warning
notes (Y page 209).
X Have the coolant system checked at a qualified
specialist workshop if the coolant needs top-
ping up more often than usual .Practical advice
204_AKB; 2; 3, en-GB
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