warning MERCEDES-BENZ C-CLASS COUPE 2011 Owners Manual

Engine
Problem Possible causes/consequences and
M Solutions
;
The yellow engine diag-
nostics warning lamp
lights up while the
engine is running.
There may be a fault, for example:
R
in the engine management
R in the fuel injection system
R in the exhaust system
R in the ignition system (for vehicles with petrol engines)
R in the fuel system
The emission limit values may be exceeded and the engin emay
be running in emergency mode.
X Have the vehicle checked as soon as possible at a qualified
specialist workshop. Vehicles with a diesel engine: the fuel tan
khas been run dry
(Y page 157).
X Start the engine three to four times after refuelling.
If the yellow engine diagnostics warning lamp goes out, emer-
gency running mode is cancelled. The vehicle need no tbe
checked. 8
The yellow reserve fuel
warning lamp lights up
while the engine is run-
ning.
The fuel level has dropped into the reserve range.
Operation of the auxiliary heating is deactivated when the fuel level
drops into the reserve range.
X
Refuel at the nearest filling station. ?
The red coolant warn-
ing lamp lights up while
the engine is running
and the coolant tem-
perature gauge is at the
star
toft he scale. The temperature sensor for the coolant temperature gauge is
faulty.
The coolant temperature is no longer being monitored. There is a
risk of engine damage if the coolant temperature is too high.
X
Stop the vehicle immediately, paying attention to road and traf-
fic conditions, and switch off the engine. Do not continue driving
under any circumstances.
X Apply the parking brake.
X Consult a qualified specialist workshop. 280
Warning and indicator lamps in the instrument clusterOn-board computer and displays

Problem Possible causes/consequences and
M Solutions
?
The red coolant warn-
ing lamp comes on
while the engine is run-
ning.
The coolant level is too low.
If the coolant level is correct, the airflow to the engine radiator
may be blocked or the electric engine radiator fan may be mal-
functioning.
The coolant is too hot and the engine is no longer being cooled
sufficiently.
X Observe the additional display messages in the multifunction
display.
X Stop the vehicle immediately, paying attention to road and traf-
fic conditions, and switch off the engine.
X Let the engine and coolant cool down.
X Check the coolant level and top up the coolant (Y page 303).
Observe the warning notes as you do so.
X If you have to top up the coolant frequently, have the engine
cooling system checked.
X Make sure that the air supply to the engine radiator is not
blocked, e.g. by frozen slush.
X If the coolant temperature is less than 120 †, you can continue
driving to the nearest qualified specialist workshop.
X Avoid heavy loads on the engine as you do so, e.g. driving on
mountain roads and stop-start traffic. ?
The red coolant warn-
ing lamp comes on
while the engine is run-
ning. A warning tone
also sounds.
The coolant temperature has exceeded 120 †. The airflow to the
engine radiator may be blocked or the coolant level may be too
low.
The engine is not being cooled sufficiently and may be damaged.
X
Observe the additional display messages in the multifunction
display.
X Stop the vehicle immediately, paying attention to road and traf-
fic conditions, and switch off the engine.
X Let the engine and coolant cool down.
X Check the coolant level and top up the coolant (Y page 303).
Observe the warning notes as you do so.
X If you have to top up the coolant frequently, have the engine
cooling system checked.
X Make sure that the air supply to the engine radiator is not
blocked, e.g. by frozen slush.
X If the coolant temperature is less than 120 †, you can continue
driving to the nearest qualified specialist workshop.
X Avoid heavy loads on the engine as you do so, e.g. driving on
mountain roads and stop-start traffic. Warning and indicator lamps in the instrument cluster
281On-board computer and displays Z

Driving systems
Problem Possible causes/consequences and
M Solutions
·
The red distance warn-
ing lamp lights up while
the vehicle is in motion.
G
Risk of accident
The distance to the vehicle in fron tis too small for the speed
selected.
X Increase the distance. ·
The red distance warn-
ing lamp lights up while
the vehicle is in motion.
Aw arning tone also
sounds. G
Ris
kofa ccident
The warning is issued if you approach a stationary vehicle or a
vehicle driving ahead of you at too high a speed.
X Be prepared to brake immediately.
X Pay careful attention to the traffic situation. You may have to
brake or take evasive action.
More information about DISTRONIC PLUS (Y page 164) and
PRE-SAFE ®
Brake (Y page 71). Tyres
Problem Possible causes/consequences and
M Solutions
h
The yellow tyre pres-
sure monitor warning
lamp is on. G
Ris
kofa ccident
The tyre pressure monito rhas detected a loss of pressure in at
least one of the tyres.
X Stop the vehicle without making any sudde nsteering or braking
manoeuvres .Pay attentio nto the traffic conditions as you do
so.
X Observe the additional display messages in the multifunction
display.
X Check the tyre pressure. If necessary, correc tthe tyre pressure
(Y page 342).
X If necessary, change a wheel (Y page 344).282
Warning and indicator lamps in the instrument clusterOn-board computer and displays

Useful information
i This Owner's Manual describes all models
and all standard and optional equipment
available to your vehicle at the time of pub-
lication of the Owner's Manual. Country-
specific deviations are possible. Please
note that your vehicle may not be equipped
with all features described. This also
applies to safety-relevan tsystems and
functions.
i Please read the information on qualified
specialist workshops (Y page 26).Loading guidelines
G
WARNING
Secure and position the load as described in
the loading guidelines.
Otherwise, vehicle occupants could
be injured by the load being throw naround in
the event of sharp braking, a sudden change
in direction or an accident.
You will find further informatio ninthe "Secur-
ing a load" section.
Even if you follow all the loading guidelines,
the load will increase the risk of injury in the
event of an accident. G
WARNING
Keep the boot lid closed while the vehicle is
in operation. Otherwise, you could be pois-
oned by exhaust fumes entering the vehicle.
The handling characteristics of a laden vehi-
cle are dependent on the distribution of the
load within the vehicle. For this reason, you
should observe the following notes when
transporting a load:
R when transporting a load, never exceed the
maximum permissible gross vehicle weight or the permissible axle loads for the vehicle
(including occupants).
R position heavy loads as far forwards as pos-
sible and as low down in the boot as pos-
sible.
R the load must not protrude above the upper
edge of the seat backrests.
R always place the load against the rear or
front seat backrests. Make sure that the
seat backrests are securely locked into
place.
R always place the load behind unoccupied
seats if possible.
R secure the load with sufficiently strong and
wear-resistant lashing material. pad sharp
edges for protection.
i Load restraints are available at any quali-
fied specialist workshop, e.g. a Mercedes-
Benz Service Centre. Stowage areas
Stowage compartments
Important safety notes G
WARNING
The stowage compartments must be closed
when items are stored in them. Luggage nets
are not designed to secure heavy items of
luggage.
You or other vehicle occupants could be
injured by objects being thrown around if you:
R brake sharply
R change direction suddenly
R are involved in an accident
Sharp-edged and fragile objects must not be
placed in the luggage net.
Do not place hard objects in the map pockets.
Objects must not protrude from the map
pockets. 284
Stowage areasStowing and features

Front stowage compartments
Glove compartment
i
The glove compartmen tcan be ventilated
(Y page 133). X
To open: pull handle :and open glove
compartment flap ;.
X To close: fold glove compartmen tflap ;
upwards until it engages.
The glove compartmen tcan only be locked
and unlocked using the emergency key ele-
ment. X
To lock: insert the emergency key element
into the lock and turn it 90° clockwise to
position 2.
X To unlock: insert the emergency key ele-
ment into the lock and turn it 90° anti-
clockwise to position 1. Stowage compartment in the centre con-
sole
X
To open: slide cover :back.
Stowage compartment/telephone com-
partment under the armrest
i Depending on the vehicle's equipment, a
USB port and an AUX IN connection or a
Media Interface are installed in the stow-
age compartment. A Media Interface is a
universal interface for portable audio
equipment, e.g .for an iPod ®
or USB device
(see the separate Audio or COMAND APS
operating instructions). X
To open: press left-hand button ;or right-
hand button :.
The stowage compartment opens. Luggage nets
G
WARNING
Only place lightweight object sinthe luggage
net. Do not use it to transport heavy, sharp-
edged or fragile objects. The luggage net can- Stowage areas
285Stowing and features
Z

not secure the objects sufficiently in the event
of an accident.
Luggage nets are located in the front-
passenger footwell and on the left-hand side
of the boot. Through-loading facility in the rear
benc
hseat
Important safety notes G
WARNING
Do not carry heavy or hard objects inside the
vehicle or in the boot unless they are secured.
Otherwise, you and other vehicle occupants
could be injured by object sbeing thrown
around the vehicle in the event of sharp brak-
ing, a sudden change in direction or an acci-
dent. G
WARNING
Always drive with the boot lid closed. Exhaust
fumes could otherwise enter the vehicle inte-
rior.
The left-hand and right-hand rear seat backr-
ests can be folded down separately to
increase the boot capacity.
Folding the seat backrest forwards i
Vehicles with memory function :when you
fold one or both parts of the rear seat back-
rest forwards, the respective front seat moves forward slightly, when necessary, in
order to avoid contact.
X Vehicles without memory function: if nec-
essary, move the driver's or front-
passenger seat forwards.
X Open the boot.
X Pull right-hand or left-hand rear seat back-
rest release handle :.
The corresponding rear seat backrest is
released. X
Fold rear seat backrest ;forwards.
X Move the driver's or front-passenger seat
back if necessary.
Folding back the seat backrest X
Move the driver's or front-passenger seat
forward if necessary.
! Make sure that the seat belt does not
become trapped when folding the rear seat
backrest back. Otherwise, it could be dam-
aged. 286
Stowage areasStowing and features

X
Fold rea rseat backrest :back until it
engages. G
WARNING
Make sure that the rear seat backrest is cor-
rectly engaged. Otherwise, vehicle occupants
could be injured by objects being thrown
around if you:
R brake sharply
R change direction suddenly
R are involved in an accident
If the rear seat backrest is not engaged, this
will be shown in the multifunction display in
the instrument cluster.
i You should always engage the rear seat
backrests if you do not need the through-
loading feature. This will preven tunauthor-
ised access to the boot from the vehicle
interior.
X Move the driver's or front-passenger seat
back if necessary. Securing
aload
Lashing eyelets G
WARNING
Distribute the load on the lashing eyelets
evenly.
Otherwise, vehicle occupants could be
injured by objects being thrown around if you:
R brake sharply
R change directio nsuddenly
R are involved in an accident
Please observe the loading guidelines.
Observe the following notes on securing
loads:
R secure the load using the lashing eyelets.
R do no tuse elastic straps or nets to secure
a load, as these are only intended as an
anti-slip protection for light loads. R
do not route lashing materials across sharp
edges or corners.
R pad sharp edges for protection.
There are four lashing eyelets in the boot. Vehicle with through-loading feature in the rear
bench seat
:
Lashing eyelets
Bag hook G
WARNING
Only hang light loads on the bag holders. Do
not use them to transport heavy, sharp-edged
or fragile objects. When braking sharply,
changing direction quickly or in the event of
an accident, the bag hooks will not secure the
items sufficiently. This could result in injury to
yourselforo thers.
! The bag hoo kcan bear a maximum load
of 5 kg. Do not use it to secure a load. :
Bag hook Stowage areas
287Stowing and features Z

Stowage well under the boot floor
The TIREFIT kit, the vehicle tool kit, etc. are
located in the stowage compartment. X
To open: pull handle :upwards. X
Hook handle :into rain trough ;.
! Remove the handle again before closing
the boot lid and snap it in tightly to prevent
the handle flap from protruding. Otherwise,
you could damage the handle. Roof carrier
Important safety notes G
WARNING
An incorrectly secured roof carrier, ski rack or
load could become detached from the vehi-
cle. These objects might then be thrown
around and could injure you or others or
cause an accident. Follow the roof carrier/ski
rack manufacturer's installation instructions
and special instructions for use. The roof load raises the vehicle's centre of
gravity, thereby affecting vehicle handling.
You must always observe the maximum roof
load of 100 kg. Always adapt your driving style
to the prevailing road, traffic and weather
conditions and drive with particular care if the
roof is laden.
! Mercedes-Benz recommends that you
only use roof carriers that have been tested
and approved for Mercedes-Benz vehicles.
This helps to prevent damage to the vehi-
cle.
Position the load on the roof carrier in such
a way that the vehicle will not sustain dam-
age even when it is in motion.
Depending on the vehicle equipment,
ensure that when the roof carrier is fitted
you can:
R open the panorama sliding sunroof fully
R open the boot lid fully
Attaching the roof carrier Vehicles with a steel roof288
Stowage areasStowing and features

Vehicles with a panorama sliding sunroof
X
Open covers :carefully in the direction of
the arrow.
X Fold covers :upwards.
X Only secure the roof carrier to the anchor-
age points under covers :.
X Observe the manufacturer's installation
instructions. Features
Cup holders
Important safety notes G
WARNING
Keep the cup holder closed while the vehicle
is in motion. Otherwise, vehicle occupants
could be injured by objects being thrown
around if you:
R brake sharply
R change direction suddenly
R are involved in an accident
Only use the cup holders for containers of a
suitable size and which have lids. Otherwise,
the drinks could spill.
Cup holders should not be used for hot drinks.
Otherwise, you may scald yourself. Cup holder in the front-compartment
centre console
:
Cup holders
; Cover
X To open: slide cover ;back.
Removing and fitting the cup holder
Removing X
Pry groove ;away carefully on the front-
passenger side using a suitable tool until
lug =becomes visible.
X Pull the cup holder upwards slightly, to the
stop.
X Pry groove :away carefully on the driver's
side using a suitable tool. At the same time,
pull the cup holder upwards slightly, to the
stop.
X Pry groove on driver's side :and front-
passenger side ;away alternately while
lifting the cup holder upwards until it can
be removed. Features
289Stowing and features Z

Fitting
X
Inser tleft-hand and right-hand grooves ;
of the cup holder into lateral springs =.
Inser tthe cup holder so that the wedge of
the upper section of cup holder :faces
forwards.
X Press the cup holder downwards until it
engages on the front-passenger side.
Cup holder in the rear stowage box X
To open: slide cover :forwards. Sun visors
Sun visor overview G
WARNING
Keep the mirrors in the sun visors covered
while driving. You could otherwise be dazzled,
which may impair your view of traffic condi-
tions and as a result could cause an accident. :
Mirror light
; Bracket
= Retaining clip, e.g. for a car park ticket
? Vanity mirror
A Mirror cover
Vanity mirror in the sun visor Mirror light
:only functions if the sun visor
is clipped into retainer ;and mirror cover
A has been folded up.
Glare from the side X
Fold down the sun visor.
X Pull the sun visor out of retainer ;.
X Swing the sun visor to the side. Ashtray
Ashtray in the front-compartment
centre console i
You can remove the ashtray insert and
use the resulting compartmentf or stow-
age.
! The stowage space under the ashtray is
not heat resistant .Before placing lit ciga-
rettes in the ashtray, make sure that the
ashtray is properly engaged. Otherwise, the
stowage space could be damaged. 290
FeaturesStowing and features