warning MERCEDES-BENZ CLS COUPE 2014 Owners Manual

Engine
Problem
Possible causes/consequences and
M
MSolutions ;
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 engine may 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 tank has been run dry
(Y
page 180).
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 not be
checked. 8
The yellow reserve fuel
warning lamp is on
while the engine is run-
ning.
The fuel level has dropped into the reserve range.
Operation of the auxiliary heating is deactivated if 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 start of the 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 Secure the vehicle to prevent it from rolling away (Y page 180).
X Consult a qualified specialist workshop. Warning and indicator lamps in the instrument cluster
295On-board computer and displays Z

Problem
Possible causes/consequences and
M
MSolutions ?
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 malfunc-
tioning.
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 Secure the vehicle to prevent it from rolling away (Y page 180).
X Leave the vehicle and keep a safe distance from the vehicle until
the engine has cooled down.
X Check the coolant level and top up the coolant, observing the
warning notes (Y page 331).
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 Do not start the engine again until the coolant temperature is
below 120 †. The engine may otherwise be damaged.
X Drive to the nearest qualified specialist workshop.
X Avoid putting the engine under heavy load as you do so, e.g.
driving in mountainous terrain 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.
G WARNING
The engine is not being cooled sufficiently and may be damaged.
Never drive with an overheated engine. Driving when your engine is overheated can cause some fluids which may have leaked into
the engine compartment to catch fire.
In addition, steam from an overheated engine can cause serious
burns, which can occur just by opening the bonnet.
There is a risk of injury.
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 Secure the vehicle to prevent it from rolling away (Y page 180).296
Warning and indicator lamps in the instrument clusterOn-board computer and displays

Problem
Possible causes/consequences and
M
MSolutions X
Leave the vehicle and keep a safe distance from the vehicle until
the engine has cooled down.
X Check the coolant level and top up the coolant, observing the
warning notes (Y page 331).
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 below 120 †, you can continue
driving to the nearest qualified specialist workshop.
X Avoid putting the engine under heavy load as you do so, e.g.
driving in mountainous terrain and stop-start traffic. Driving systems
Problem
Possible causes/consequences and
M MSolutions ·
The red distance warn-
ing lamp lights up while
the vehicle is in motion. The distance to the vehicle in front is too small for the speed
selected.
X Increase the distance. ·
The red distance warn-
ing lamp lights up while
the vehicle is in motion. A warning tone also
sounds. You are approaching a vehicle or a stationary obstacle in your line
of travel 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.
Further information on PRE‑SAFE ®
Brake (Y page 76). Warning and indicator lamps in the instrument cluster
297On-board computer and displays Z

Tyres
Problem
Possible causes/consequences and
M
MSolutions h
The yellow tyre pres-
sure monitor warning
lamp (pressure loss/
malfunction) is lit.
The tyre pressure monitor has detected a loss of pressure in at
least one of the tyres.
G WARNING
With tyre pressures which are too low, there is a risk of the fol-
lowing hazards: R the tyres may burst, especially as the load and vehicle speed
increase.
R the tyres may wear excessively and/or unevenly, which may
greatly impair tyre traction.
R the driving characteristics, as well as steering and braking, may
be greatly impaired.
There is a risk of an accident.
X Stop the vehicle without making any sudden steering or braking
manoeuvres. Pay attention to the traffic conditions as you do so.
X Secure the vehicle against rolling away (Y page 180).
X Observe the additional display messages in the multifunction
display.
X Check the tyres and, if necessary, follow the instructions for a
flat tyre (Y page 347).
X Check the tyre pressure (Y page 370).
X If necessary, correct the tyre pressure. h
The yellow tyre pres-
sure monitor warning
lamp (pressure loss/
malfunction) flashes for
approximately one
minute and then
remains lit. The tyre pressure monitor is faulty.
G WARNING
The system is possibly unable to recognise or register low tyre
pressure.
There is a risk of an accident. X Observe the additional display messages in the multifunction
display.
X Visit a qualified specialist workshop. 298
Warning and indicator lamps in the instrument clusterOn-board computer and displays

Useful information
i This Owner's Manual describes all mod-
els, series and optional equipment for your
vehicle that were available at the time of
going to press. National variations are pos- sible. Note that your vehicle may not be
equipped with all of the functions descri-
bed. This is also the case for systems and
functions relevant to safety.
i Read the information on qualified special-
ist workshops: (Y page 26). Stowage areas
Loading guidelines
G
WARNING
If objects, luggage or loads are not secured or not secured sufficiently, they could slip, tip
over or be flung around and thereby hit vehicle
occupants. There is a risk of injury, especially when braking or abruptly changing directions.
Always store objects so that they cannot be
flung around. Secure objects, luggage or
loads against slipping or tipping before the
journey. G
WARNING
Combustion engines emit poisonous exhaust
gases such as carbon monoxide. Exhaust
gases can enter the vehicle interior if the boot
lid/tailgate is open when the engine is run-
ning, especially if the vehicle is in motion.
There is a risk of poisoning.
Always switch off the engine before opening
the boot lid/tailgate. Never drive with the
boot lid/tailgate open. 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 never exceed the maximum permissible
gross vehicle weight or the permissible axle
loads for the vehicle (including occupants).
R the boot/luggage compartment is the pre-
ferred place to store objects.
R position heavy loads as far forwards as pos-
sible and as low down in the boot/luggagecompartment as possible.
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 use the lashing eyelets and the luggage
nets to transport loads and luggage.
R only use lashing eyelets and fastening com-
ponents that are suitable for the weight and
size of the load.
R when transporting objects in the luggage
compartment, the combined luggage cover
and net must always be installed (luggage
compartment cover and safety net).
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 spaces
Important safety notes G
WARNING
If objects in the passenger compartment are
stowed incorrectly, they can slide or be 300
Stowage areasStowing and features

Stowage compartments in the centre
console Front stowage compartment (all models except
AMG vehicles)
X To open: slide the cover forwards by han-
dle :in the direction of the arrow until it
engages.
X To close: briefly press the front of han-
dle :. Rear stowage compartment (all models except
AMG vehicles)
X Briefly press trim ;in the direction of the
arrow.
Cover :swings upwards. AMG vehicles
X
Briefly press trim :.
i The stowage tray can be removed.
Stowage compartment/telephone
compartment under the armrest X
To open: pull handle :up.
The armrest folds out.
i Depending on the vehicle equipment, a
12 V power socket, USB port or a Media
Interface is installed in the stowage com-
partment. A Media Interface is a universal
interface for portable audio equipment, e.g.
for an iPod ®
or MP3 player (see the sepa-
rate Audio 20 or COMAND Online operating
instructions).
Stowage compartment under the front
seats G
WARNING
If you exceed the maximum permitted load of the stowage compartment, the cover is
unable to restrain the objects. Objects may be 302
Stowage areasStowing and features

thrown out of the stowage compartment and
hit vehicle occupants as a result. There is a
risk of injury, particularly in the event of sud-
den braking or a sudden change in direction.
Always observe the maximum load of the
stowage compartment. Stow and secure
heavy objects in the boot/luggage compart-
ment.
The maximum permissible load of the stow-
age compartment is 1.5 kg. X
To open: pull handle :up and fold
cover ;forwards.
i On vehicles with a fire extinguisher, the
fire extinguisher is located in the stowage
compartment under the driver's seat.
Stowage compartments in the rear
centre console (CLS Coupé) X
To open: slide covers :and ;in the
direction of the arrow.
i There is a 12 V power socket in the front
stowage compartment. Stowage compartment in the rear seat
armrest
Illustration: CLS Coupé
X To open: fold down seat armrest ;.
X Fold cover :of the armrest upwards. Stowage nets
Stowage nets are located in the front-
passenger footwell and on the left-hand side
of the boot (Coupé) or left- and right-hand
sides of the luggage compartment (Shooting
Brake).
Observe the loading guidelines (Y page 300)
and the safety notes regarding stowage
spaces (Y page 300). Through-loading facility in the rear
bench seat
Important safety notes G
WARNING
If the rear bench seat/rear seat and seat
backrest are not engaged they could fold for- wards, e.g. when braking suddenly or in the
event of an accident.
R The vehicle occupant would thereby be
pushed into the seat belt by the rear bench
seat/rear seat or by the seat backrest. The
seat belt cannot protect as intended and
could result in additional injury.
R Objects or loads in the boot cannot be
restrained by the seat backrest. Sto
wage areas
303Stowing and features
Z

This poses an increased risk of injury.
Before every trip, make sure that the seat
backrests and the rear bench seat/rear seat
are engaged before every trip.
Observe the loading guidelines (Y page 300).
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 !
Make sure that the seat belt does not
become trapped when folding the rear seat backrest back. Otherwise, it could be dam- aged. X
Move the driver's or front-passenger seat
forward if necessary.
X Fold rear seat backrest :back until it
engages.
If the rear seat backrest is not engaged and
locked, this will be shown in the multifunc-
tion display in the instrument cluster. A
warning tone also sounds.
X Move the driver's or front-passenger seat
back if necessary.
i If you do not need the through-loading
feature, you should always engage the rear seat backrests. This will prevent unauthor-
ised access to the boot from the vehicle
interior. Through-loading facility in the rear
bench seat (CLS Shooting Brake)
Important safety notes G
WARNING
If the rear bench seat/rear seat and seat
backrest are not engaged they could fold for- 304
Stowage areasStowing and features

wards, e.g. when braking suddenly or in the
event of an accident.
R The vehicle occupant would thereby be
pushed into the seat belt by the rear bench
seat/rear seat or by the seat backrest. The
seat belt cannot protect as intended and
could result in additional injury.
R Objects or loads in the boot/luggage com-
partment cannot be restrained by the seat
backrest.
This poses an increased risk of injury.
Before every trip, make sure that the seat
backrests and the rear bench seat/rear seat
are engaged before every trip.
Observe the loading guidelines (Y page 300).
Folding the seat backrest forwards !
When folding the rear seat backrest for-
wards, ensure that there are no items lying on the seat cushions. These items could
otherwise be damaged or could themselves
damage the rear seats. The left-hand and right-hand rear seat backr-
ests can be folded forwards separately to
increase the luggage compartment capacity.
i When you fold one or both parts of the
rear seat backrests forwards, the headr-
ests are also lowered if necessary. In the
case of vehicles with memory function, the respective front seat is moved forwards
slightly to avoid contact with the seat
behind it. X
Vehicles without memory function: if nec-
essary, move the driver's or front-
passenger seat forwards.
X Pull the left-hand or right-hand release han-
dle at the rear in load compartment :.
The corresponding backrest folds for-
wards.
X Move the driver's or front-passenger seat
back if necessary.
Folding back the seat backrest !
Make sure that the seat belt does not
become trapped when folding the rear seat backrest back. Otherwise, it could be dam- aged. X
Move the driver's or front-passenger seat
forward if necessary.
X Fold seat backrest :back until it engages.
If the rear seat backrest is not engaged and locked, this will be shown in the multifunc-
tion display in the instrument cluster. A
warning tone also sounds.
X Adjust the head restraints if necessary
(Y page 108).
X Move the driver's or front-passenger seat
back if necessary. Stowage areas
305Stowing and features Z

Securing a load
Lashing eyelets General notes
Observe the following notes on securing
loads:
R Observe the loading guidelines
(Y page 300).
R Secure the load using the lashing eyelets.
R Distribute the load on the lashing eyelets
evenly.
R Do not use elastic straps or nets to secure
a load. 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.
Boot/luggage compartment Lashing eyelets
:(CLS Coupé) Lashing eyelets
:(CLS Shooting Brake) Coat hook (CLS Shooting Brake)
:
Coat hook Luggage compartment cover (CLS
Shooting Brake)
Important safety notes G
WARNING
On its own, the luggage compartment cover
cannot secure or restrain heavy objects,
items of luggage and heavy loads. You could
be hit by an unsecured load during sudden
changes in direction, braking or in the event of an accident. There is an increased risk of
injury or even fatal injury.
Always store objects so that they cannot be
flung around. Secure objects, luggage or
loads against slipping or tipping over, e.g. by
using lashing material, even if you are using
the luggage compartment cover.
! When loading the vehicle, make sure that
you do not stack the load in the luggage
compartment higher than the lower edge of the side windows. Do not place heavy
objects on top of the luggage compartment
cover.
The luggage compartment cover is located
behind the rear bench seat backrest. 306
Stowage areasStowing and features