ECU MERCEDES-BENZ CLS COUPE 2012 Workshop Manual

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

R
do not route lashing materials across sharp
edges or corners.
R pad sharp edges for protection.
Boot :
Lashing eyelets
There are six lashing eyelets in the boot.
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 brakin gsharply,
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
yourself or others.
! The bag hook can bear amaximum load
of 3k g. Do not use it to secure aload. X
Pull bag hook ;down by tab :. EASY-PACK boot box
Importan tsafet ynotes G
WARNING
Only load the EASY-PACK convenience box to
the maximum permissible load of 10 kg. To
preven toverloading, the floor of the box
moves down onto the boot floor mat when
loaded with more than approx. 5kg.
Do not transpor tsharp-edged and fragile
objects in the box.
Otherwise, e.g. in the event of arapid change
of direction or heavy braking, the objects
could be thrown out of the EASY-PACK con-
venience box and injure you and others.
! When the EASY-PACK convenience box is
pulledo ut, no objectsm ay be placed on the
frame of the box or pushed onto the frame
from above. Otherwise, the box could be
damaged.
Adjusting the height to any position G
WARNING
Make sure that your hands are not inside the
EASY-PACK convenience box when the load
surface moves up. Otherwise, you could be
injured. X
Pull the box out by handle :in the direc-
tion of the arrow all the way to the stop.
X Lowering the load surface:p ush the
centr eofload surface ;down by han din
th ed irection of th earrow until load sur- Stowage areas
277Stowing and featu res Z

face
;has reache dthe desired position
and the box is the desired size.
X To raise the load surface: press switch
=.
Load surface ;of the box moves up auto-
matically.
X To stow the box: pushthe box in by han-
dle :allt he waytot he stop.
Removing and fitting X
To install: insert retainer ;of box :into
slots = X
Raise box :and press hooks Ainto
anchorage ?as far as they wil lgo.
X Turn left-hand rotating catch Bclockwise
and right-hand rotating catch Banti-clock-
wis eby9 0°.
X To remove: turn left-hand rotating catch
B anti-clockwise and right-hand rotating
catch Bclockwise by 90°.
X Move box :downward sand pul litout
from anchorages ?. i
Store the EASY-PACK boot box on aflat
surface after removal, e.g. on asuitable
shelf. Stowage well under the boo
tfloor
! Remove the handle again befor eclosing
the boot lid and snap it in tightly to prevent
the handle flap fro mprotruding. Otherwise,
you coul ddamage the handle. The TIREFIT kit, the vehicl
etool kit, etc. are
located in the stowage compartment.
X To open: pullhandle :up. X
Hook handle :into rain trough ;. Roof carrier
Important safety notes G
WARNING
An incorrectly secure droof carrier, ski rack or
load could become detached from the vehi-
cle. These object smight then be thrown 278
Stowage areasStowing and 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

X
Remove cup holder insert =upwards.
X To refit th einsert: placethe inser tinthe
stowage space.
X Slide catch :outward sinthedirection of
th ea rrow until it engages. AM
Gvehicles
: Cup holders
; Cover
X To open: slidecover ; to it sforemost
position.
You can remove th ecup holder inser ttoclean
it. Clean it with clean, lukewarm water only.
AMG vehicles: you can remove the rubber
mat of the cup holder in the direction of the
arrow to clean it. Clean it with clean, luke-
warm water only.
Cup holder in the rear-compartment
centre console X
To open: slide cover :forwards.
X To remove the insert: slide catch;
inwards in the direction of the arrow.
X Remove cup holder insert =upwards.
X To refit the insert: place the insert in the
stowage space.
X Slide catch ;outwards in the direction of
the arrow until it engages.
You can remove the insert and the rubber mat
of the cup holder to clean them. Clean them
with clean, lukewarm water only.
Cup holder in the rear seat armrest !
Do not sit on or support your body weight
on the rear seat armrest when it is folded
down, as you could otherwise damage it.
! Close the cup holder before folding the
rear seat armrest up. Otherwise, the cup
holder could be damaged. X
Fold down the rear seat armrest.
X To open: raise the rear seat armrest cover.
X Press release catch :.
Cup holder ;folds out forwards.
X Fold the cover of the rear seat armrest back
down again if necessary.
X To close: lift the cover of the rear seat arm-
rest.
Swing cup holder ;back until it engages. 280
FeaturesStowing and features

Bottl
eholders G
WARNING
Do not transport heavy ,sharp-edged and frag-
il eb ottle sint he bottle holder. In the event of
an accident, the bottle holde rcan no tsecure
the bottles adequately.
! Make sure that any bottles weighing more
than 0.5 kg that are stored in the bottle
holder rest on the vehicle floor. The bottle
holder could otherwise be damaged. X
Press the outer edge of button :and slide
in the direction of the arrow until the bottle
fits into the opening.
X Inser tthe bottle into the bottle holder.
The bottle holder is suitable for bottles with a
capacity from 0.7 lto1.5 l.
The bottle holder does not secure bottles; it
merely prevents them from tipping over. Sun visors
Overview G
WARNING
Keep the vanity mirrors in the sun visors cov-
ered while driving. You could otherwise be
dazzled, which may impair your view of traffic
conditionsa nd asaresult could cause an
accident. :
Mirror light
; Bracket
= Retaining clip, e.g. for acar 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 sun visor :.
X Pull sun visor :out of retainer ;.
X Swing sun visor :to the side.
X Slide sun visor :horizontally as required. Features
281Stowing and features Z

Country Radio type approval num-
ber
Frequency range (MHz)
GF (French
Guyana) Article
6ofDirective
1999/5/E CR&TTE10668
13 May 05
MHz :27,30 ,40, 433, 868 GP (Guade-
lo
up e) Article
6ofDirective
1999/5/EC R&TTE10668
13 May 05
MHz: 27, 30, 40, 433, 868 MQ (Martini-
que) Article
6ofDirective
1999/5/EC R&TT E11July
05
MHz: 27, 30, 40, 433, 868 MX (Mexico) MHz: 280 to 390
Asia
Country Radio type approval num-
ber
Frequency range (MHz)
AE (United
Arab Emi-
rates) 1623/5/10-2/26/76
MHz: 433
JO (Jordan) TRC/LPD/2005/23
MHz: 27, 30, 40, 433, 868
KW (Kuwait) 5O
ctober 2005
MHz: 27, 30, 40, 418, 433,
868 LB (Leba-
non) 2920/O&M/2006
/3July
05
MHz: 27, 40, 433, 868 SA (Saudi
Arabia) 11_02_05/5024-5-6
MHz: 418, 433
SY (Syria) 279/4/14
/05March 06 TR (Turkey) National Certification 23
July 07
MHz: 433 Australia
Country Radio type approval num-
ber
Frequency range (MHz)
AU (Aus-
tralia) 28 June
MHz: 27, 30, 40, 433, 868
NZ (New
Zealand) 20 March 06
MHz: 27, 30, 40, 433
Floormat on the driver's side
G
WARNING
Make sure that there is sufficient clearance
around the pedalsw henf loormats are used,
and that the floormats are properly secured.
The floormats must be correctly secured at all
times using the securing knob and retainers.
Before you drive off ,chec kthe floormats and
secure them if necessary. Afloormat which is
not properly secured can slip and thereby
interfere with the movemen tofthe pedals.
Do not place floormats on top of one another. X
Slide the seat backwards.
X To fit: lay the floormat in the footwell.
X Press studs :onto retainers ;.
X To remove: pull the floormat from retain-
ers ;.
X Remove the floormats. 292
FeaturesStowing and features

X
Replac ecap : on th efiller neck and turn
clockwise.
Mak esuret hatthe cap locks securel yinto
place.
X Chec kthe oil level again with the oil dip-
stick (Y page 298).
For further information on engine oil, see
(Y page 363). Other service products
Checking the coolant level G
WARNING
The cooling system is pressurised. Therefore,
only unscrew the cap once the engine has
cooled down. The coolant temperature gauge
must display less than 70 †.Otherwise, you
could be scalded if hot coolant escapes. X
Park the vehicl eonalevel surface.
Onl ycheck the coolant level if the vehicle
is on alevel surface and the engine has
coole ddown.
X Turn the key to position 2in the ignition
lock (Y page 141).
On vehicles with KEYLESS-GO, press the
Start/Stop button twice (Y page 141).
X Check the coolant temperatur edisplay in
the instrument cluster.
Th ec oolant temperatur emustbeb elow
70 †.
X Turn the key to position 0(Y page 141) in
the ignition lock. X
Slowl yturnc ap : half aturna nti-clock-
wise to allow exces spressure to escape.
X Turn cap :further anti-clockwis eand
remove it.
If th ecoolan tisatt heleve lofm arkerbar
= in th efille rneck when cold, ther eis
enough coolant in coolant expansion
tank ;.
If the coolant level is approximately
1.5 cm above marker bar =in the filler
neckw hen warm, there is enough coolant
in coolant expansion tank ;.
X If necessary, top up with coolant that has
been tested and approved by Mercedes-
Benz.
X Replace cap :and turn it clockwise as far
as it will go.
For further information on coolant, see
(Y page 365).
Topping up the windscreen washer sys-
tem/headlam pcleaning system G
WARNING
Windscreen washer fluid/antifreez eishighly
flammable. Avoid spilling windscreen washer
fluid/antifreez eonhot engin ecomponent sas
it can ignit eand burn. Severe burns could be
the result. X
To open: pull cap:upwards by the tab.
X Top up with the premixed washer fluid.
X To close: press cap :ontothe filler neck
until it engages. Engine compartment
299Maintenance and care Z

Cleaning th
ewindows G
WARNING
Switch off th ewindscree nwipers and remove
the key fro mthe ignition lock before cleaning
the windscreen or the wiper blades. On vehi-
cles with KEYLESS-GO, press the Start/Stop
button repeatedly until all indicator lamps in
the instrument cluster have gone off. The
windscreen wipers could otherwise move and
injure you.
! Do not use dry cloths, abrasive products,
solvents or cleaning agents containing sol-
ventstoc lean the inside of the windows.
Do not touch the insides of the windows
with hard objects, e.g. an ice scraper or
ring. There is otherwise arisk of damaging
the windows.
! Cleant he water drainage channels of the
windscreen and the rear window at regular
intervals. Deposits such as leaves, petals
and pollen may under certain circumstan-
ces prevent water from draining away.T his
can lead to corrosion damage and damage
to electronic components.
X Cleant he inside and outside of the win-
dows with adamp cloth and acleaning
agent that is recommended and approved
by Mercedes-Benz.
Cleaningt he wiper blades G
WARNING
Switch off the windscreen wipers and remove
the key from the ignition lock before cleaning
the windscreen or the wiper blades. On vehi-
cles with KEYLESS-GO, press the Start/Stop
button repeatedly until all indicator lamps in
the instrumentc luster have gone off. The
windscreen wipers could otherwise move and
injure you.
! Do not pull on the wiper blade. Otherwise,
the wiper blade could be damaged.
! Do not clean wiper blades too often and
do not rub them too hard. Otherwise, the graphite coating could be damaged. This
could cause wiper noise.
! Hold the wiper arm securely when folding
back. The windscreen could be damaged if
the wiper arm hits against it suddenly.
X Fold the wiper arms away from the wind-
screen.
X Carefully clean the wiper blades with a
damp cloth.
X Fold the windscreen wipers back again
before switching on the ignition.
Cleaningt he exterior lighting !
Only use cleaning agents or cleaning
cloths that are suitable for plastic lenses.
Unsuitable cleaning agents or cleaning
cloths could scratchord amage the plastic
lenses of the exterior lighting.
X Cleant he plastic lenses of the exterior
lighting using awet sponge and amild
cleaning agent, e.g. Mercedes-Ben zcar
shampoo or cleanin gcloths.
Mirror turn signal !
Only use cleanin gagents or cleaning
cloth sthata re suitable for plastic lenses.
Unsuitable cleanin gagents or cleaning
cloth scould scratch or damag ethe plastic
lenses of th emirror tur nsignals.
X Clean the plastic lenses of the mirror turn
signals in the exterior mirror housing using
aw et sponge and mild cleanin gagent, e.g.
Mercedes-Benz car shampoo or cleaning
cloths.
Cleaning the sensors !
If you clean th esensor swithah igh-pres-
sure cleaner, mak esure that you keep a
distanc eofatl east 30 cm between the
vehicle and th ehigh-pressure cleane rnoz-
zle. Information about the correc tdistance
is available from the equipment manufac-
turer. 304
CareMaintenance and care

Otherwise, the vehicle's electronic sys-
tem may be damaged.
R in vehicles with automatic transmission,
the transmission is locked in position P
after disconnecting the battery. The vehi-
cle is secured against rolling away. You
can then no longer move the vehicle.
The battery and the cover of the positive
terminal clamp must be fitted securely dur-
ing operation.
In order for the battery to achieve the maxi-
mum possibles ervice life, it must always be
sufficiently charged.
The vehicle battery, like other batteries, can
discharge over time if you do not use the
vehicle. In such cases, have the battery dis-
connected at aqualified specialist workshop.
You can also charge the battery with a
charger recommended by Mercedes-Benz.
For more information, please contact aquali-
fied specialist workshop.
Have the battery charge checked more fre-
quently if you use the vehicle mainly for short
trips or if you leave it standing idle for a
lengthy period. Consult aqualified specialist
workshop if you wish to leave your vehicle
parked up for along period of time.
i When you park the vehicle, remove the
key if you do not require any electrical con-
sumers. The vehicle will then use very little
energy, thus conserving battery power.
i After an interruption of the power supply,
e.g. the battery was discharged, you have
to:
R set the clock. Information on setting the
clock can be found in the separate oper-
ating instructions.
On vehicles with COMAND Online and a
navigation system, the clock is set auto-
matically.
R reset the function for folding the exterior
mirrors in/out automatically, by folding
the mirrors out once (Y page 106). Charging the battery
G
WARNING
Only charge the battery in awell-ventilated
area. As the battery is being charged, gases
can escape and generate minor explosions.
This could injure you and other persons or
cause damage to the paintwork or acid cor-
rosion on the vehicle.
You can obtain information on battery charg-
ers which allow the battery to be charged
while still installed from aqualified specialist
workshop. G
WARNING
There is arisk of acid burns during the charg-
ing process due to the gases which escape
from the battery. Do not lean over the battery
during the charging process. G
WARNING
Battery acid is caustic. Avoid contact with the
skin, eyes or clothing.
! Only charge the installed battery with a
battery charger which has been tested and
approved by Mercedes-Benz.T hese battery
chargers allow the battery to be charged
while still installed in the vehicle.
! Only use battery chargers with amaxi-
mum charging voltage of 14.8 V.
! Only charge the battery using the jump-
start connection point.
The jump-starting connection point is in the
engine compartment( Ypage 319).
Read the battery charger's operating instruc-
tions before charging the battery.
X Open the bonnet (Y page 296).
X Connect the battery charger to the positive
terminal and earth point in the same order
as when connecting the donor battery in
the jump-starting procedure
(Y page 319). 318
Battery (vehicle)Breakdown assistance