2012 MERCEDES-BENZ CLS COUPE brake

Problem Possible causes/consequences and
M Solutions
!
The yellowA
BS warning
lamp is lit while the
engine is running. A
warning tone also
sounds. EBD is not available due to
amalfunction .Therefore, ABS,B AS,
BAS PLUS, ESP ®
,P RE-SAFE ®
,P RE-SAFE ®
Brake, the HOLD func-
tion, hill start assist and the adaptive brake lights, for example,
are not available either.
ATTENTION ASSIST is deactivated.
G WARNING
The brake system continues to function normally, but without the
functions listed above. The front and rear wheels could therefore
lock if you brake hard, for example.
The steerability and braking characteristics may be severely affec-
ted. The braking distance in an emergency braking situation can
increase.
If ESP ®
is not operational, ESP ®
is unable to stabilise the vehicle.
The danger of skidding and having an accident increases.
X Observe the additional display messages in the multifunction
display.
X Drive on carefully.
X Visit aqualified specialist workshop. J֌!
The red brake warning
lamp, the yellow ESP
®
and ESP ®
OFF warning
lamps and the yellow
ABS warning lamp are
lit while the engine is
running. ABS and ESP
®
are not available due to afault. Therefore, BAS,B AS
PLUS, EBD,P RE-SAFE®
,P RE-SAFE ®
Brake ,the HOLD function ,hill
start assist and th eadaptive brak elights ,for example, are not
available either.
ATTENTION ASSIST is deactivated.
G WARNING
The brak esystem continues to function normally, but without the
function slisted above. The fron tand rea rwheels could therefore
lock if you brake hard, for example.
The steerability and braking characteristics may be severely affec-
ted. The braking distance in an emergency braking situation can
increase.
If ESP ®
is not operational, ESP ®
is unable to stabilise the vehicle.
The danger of skidding and having an accident increases.
X Observe the additional displaym essages in the multifunction
display.
X Drive on carefully.
X Visit aqualified specialist workshop. Warning and indicator lampsint
he instrument cluster
263On-board computer and displays Z

Problem Possible causes/consequences and
M Solutions
֌
The yellowE
SP®
and
ESP ®
OFF warning
lamps are lit while the
engine is running. ESP
®
,B AS,B AS PLUS, PRE-SAFE ®
,P RE-SAFE ®
Brake, the HOLD
function, hill start assist and the adaptive brake lights are not
available due to amalfunction.
ATTENTION ASSIST is deactivated.
G WARNING
The brake system continues to function normally, but without the
functions listed above.
The braking distance in an emergency braking situation can thus
increase.
If ESP ®
is not operational, ESP ®
is unable to stabilise the vehicle.
The danger of skidding and having an accident increases.
X Observe the additional display messages in the multifunction
display.
X Drive on carefully.
X Visit aqualified specialist workshop. ֌
The yellowE
SP®
and
ESP ®
OFF warning
lamps are lit while the
engine is running. ESP
®
,B AS, PRE-SAFE ®
,t he HOLD functio nand hill start assist are
temporaril yunavailable.
The adaptive brake lights ,BAS PLU Sand PRE-SAFE ®
Brake may
also have failed.
ATTENTIO NASSIST is deactivated.
Self-diagnosi sisnot yetcomplete.
G WARNING
The brake system continues to function normally, but without the
functions listed above.
The braking distance in an emergenc ybraking situation can thus
increase.
If ESP ®
is not operational, ESP ®
is unable to stabilise the vehicle.
The danger of skidding and having an accident increases.
X Carefully drive on asuitable stretch of road, making slight steer-
ing movements at aspeed above 20 km/h.
The functions mentioned above are available again when the
warning lamp goes out.
If the warning lamp is still on:
X Observe the additional display messages in the multifunction
display.
X Drive on carefully.
X Visit aqualified specialist workshop. Warning and indicator lampsint
he instrument cluster
265On-board computer and displays Z

Problem Possible causes/consequences and
M Solutions
J
The red brake system
warning lamp comes on
while the vehicle is
moving.
Awarning tone
also sounds. You are driving with the parking brake applied.
X
Release the parking brake.
The warning lamp goes out and the warning tone ceases. 6
The red SRS warning
lamp is lit while the
engine is running.
There is
amalfunction in the SRS (Supplemental Restraint Sys-
tem).
G WARNING
The airbags or belt tensioners may either be triggered uninten-
tionally or, in the event of an accident, may not be triggered.
This poses an increased risk of injury.
X Drive on carefully.
X Have SRS checked at aqualified specialist workshop immedi-
ately.
For further information about the Supplemental Restraint System,
see (Y page 41). Engine
Problem Possible causes/consequences and
M Solutions
;
The yellowe
ngine diag-
nosticsw arning lamp
lights up while the
engine is running. There may be
afault, 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 aqualified
specialist workshop. Vehicles with
adiesel engine: the fuel tank has been run dry
(Y page 158).
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. 266
Warning and indicator lampsint
he instrument clusterOn-board computer and displays

Problem Possible causes/consequences and
M Solutions
X
Leave the vehicle and keep asafe 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 299).
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 heavy loads on the engine as you do so, e.g. driving in
mountainous terrain and stop-start traffic. Driving systems
Problem Possible causes/consequences and
M Solutions
·
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.
Aw
arning tone also
sounds. You are approaching
avehicle or astationar yobstacle in your line
of travel at to ohigh aspeed.
X Be prepared to brak eimmediately.
X Pay careful attentio ntothetraffic situation. You may have to
brak eort akee vasive action.
Further informatio nonDISTRONICPLUS(Ypage 170).
Further informatio nonPRE-SAFE ®
Brake (Y page 68). Warning and indicator lamps in th
einstrumen tcluster
269On-boar dcomputer and displays Z

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 variation sare pos-
sible. Not ethat your vehicle may not be
equipped with all of the function sdescri-
bed. This is also the case for system sand
function srelevan ttosafety.
i Read the information on qualified special-
ist workshops: (Y page 23). Stowage areas
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 thrown around in
the even tofsharp braking, asudden change
in direction or an accident.
You will find further information in the "Secur-
ing aload" 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 enteringt he vehicle.
The handling characteristics of aladen vehi-
cle are dependent on the distribution of the
load within the vehicle. For this reason, you
should observe the following notes when
transporting aload:
R when transporting aload, 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 stronga nd
wear-resistant lashing material. pad sharp
edges for protection.
i Load restraintsa re available at any quali-
fied specialist workshop, e.g. aMercedes-
Benz Service Centre. 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 objectsb eing thrown around if you:
R brake sharply
R change direction suddenly
R are involved in an accident
Sharp-edged and fragile objectsm ust not be
placed in the luggagen et.
Do not place hard objectsint he map pockets.
Objectsm ust not protrude from the map
pockets. 272
Stowage areasStowing and features

Rear stowage compartmen
t(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's equipment, a
12 Vsocket, aUSB port, and an AUX-IN
jack or aMedia Interface are installed in the
stowage compartment .AMedia Interface
is au niversal interface for portable audio
equipment, e.g. for an iPod ®
or MP3 player
(see the separate Audio or COMAND Online
operating instructions).
Stowage compartment under the front
seats G
WARNING
Only load the stowage compartment with the
maximum permissible load of 1.5 kg. Other-
wise, the transported load could, for example,
be thrown out of the stowage compartment if
you change direction suddenly or brake
sharply, and you or others could be injured. X
To open: pull handle :up and fold
cover ;forwards.
i On vehicles with afire extinguisher, the
fire extinguisher is located in the stowage
compartment under the driver's seat. 274
Stowage areasStowing and features

X
Vehicles without memory function: if nec-
essary,m ove 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 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.
! 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.
X Move the driver's or front-passenger seat
back if necessary.
i You shoulda lways engage the rear seat
backrests if you do not need the through-
loading feature. This will prevent unauthor-
ised access to the boot from the vehicle
interior. Securing
aload
Lashing eyelets General notes
G
WARNING
Distribut ethe load on th elashin geyelets
evenly.
Otherwise, vehicle occupant scould be
injured by object sbein gthrown aroun difyou:
R brak esharply
R change directio nsuddenly
R are involve dinanaccident
Pleas eobserv ethe loadin gguidelines.
Observ ethe followin gnotes on securing
loads:
R secure th eload usin gthe lashin geyelets.
R do no tuse elastic straps or nets to secure
al oad, as these are only intended as an
anti-slip protection for light loads. 276
Stowage areasStowinga
nd features

around, and coul
dinjure you or other sor
caus eana ccident. Follow th eroo fcarrier/ski
rac km anufacturer' sinstallatio ninstructions
and special instruction sfor use.
The roo fload raises the vehicle's centre of
gravity, thereby affecting vehicle handling.
You must alwayso bserve 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
aw ay that the vehicle will not sustain dam-
age even when it is in motion.
Ensure that, depending on the vehicle's
equipment, you can raise the sliding sun-
roof fully and open the boot lid fully when
the roof carrier is fitted.
! To avoid damaging or scratching the cov-
ers, do not use metallic or hard object sto
open them.
Attaching the roof carrier X
Open covers :carefully in the direction of
the arrow.
X Only secure the roof carrier to the anchor-
age points under covers :.
X Observe the manufacturer' sinstallation
instructions. Features
Cu
ph olders
Important safety notes G
WARNING
Kee pthe cup holde rclosed while the vehicle
is in motion. Otherwise, vehicle occupants
could be injured by object sbeing thrown
around if you:
R brake sharply
R change direction suddenly
R are involved in an accident
Only use the cup holders for container sofa
suitable size and which have lids. The drinks
could otherwise spill.
Cup holders should not be used for hot drinks.
You may otherwise scald yourself.
Cup holder in the front centre console All vehicles (except AMG)
X To open: press the fron tofcover;.
X To remove the insert: slide catch:
inwards on both sides in the direction of the
arrow. Features
279Stowing and features Z