MERCEDES-BENZ CLS COUPE 2012 Owners Manual

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

Jump-starting
G
WARNING
There is arisk of acid burns when jump-starting avehicle due to the gases which escape from
the battery. Do not lean over the battery while the engine is being jump-started. G
WARNING
Gases escaping from the battery during jump-starting may cause minor explosions. Avoid cre-
ating sparks. Keep naked flames away from the battery, and do not smoke.
Comply with the important safety precautions when handling batteries. You will find these under
"Battery (vehicle) -important safety notes" in the index. G
WARNING
Non-combusted fuel can collect in the exhaust system and ignite. There is arisk of fire. Avoid
repeated and lengthy starting attempts.
! Vehicles with apetrol engine: avoid repeated and length ystarting attempts. Otherwise,
th en on-combusted fuel may damage th ecatalytic converter.
Do not use arapid chargin gdevic etos tart th evehicle. If your vehicle's batter yisdischarged,
the engin ecan be jump-started from another vehicle or from asecon dbatter yusing jump
leads. Observe the following points:
R The batter yisnot accessible in all vehicles. If the other vehicle's batter yisnot accessible,
jump-start the vehicle using asecond battery or ajump-starting device.
R vehicles with apetrol engine: onlyjump-star tthe vehicle when the engine and exhaust
system are cold.
R do not start the engine if the battery is frozen.L et the battery thaw first.
R jump-starting may only be performed from batteries with anominal voltage of 12 V.
R only use jump leads that have asufficient cross-section and insulated terminal clamps.
R if the battery is fully discharged, leave the battery that is being used to jump-start connected
for afew minutes before attempting to start. This charges the empty battery alittle.
R make sure that the two vehicles do not touch.
Make sure that:
R The jump leads are not damaged.
R Non-insulated parts of the terminal clamps do not come into contact with other metal parts
while the jump leads are connected to the battery.
R the jump leads cannot come into contact with parts such as the V-belt pulleyort he fan.
These parts move when the engine is started and while it is running.
X Firmly depress the parking brake.
X Shift the transmission to position P.
X Switch off all electrical consumers (e.g. radio, blower, etc.).
X Open the bonnet (Y page 296).
Position number Bidentifies the charged battery of the other vehicle or an equivalent jump-
startingd evice. Jump-starting
319Breakdown assistance Z

X
Slide cover :of positive terminal ;in the direction of the arrow.
X Connect positive terminal ;on your vehicl etopositive terminal =of dono rbattery B
using the jump lead .Always begin with positive terminal ;on your own vehicle first.
X Start the engine of the dono rvehicle and run it at idling speed.
X Connec tnegativ eterminal ?of donor battery Bto earth point Aof your vehicle using
the jump lead, connectingt he jump lead to donor battery Bfirst.
X Start the engine.
X Before disconnecting the jump leads, let the engines run for several minutes.
X First, remove the jump leads from earth point Aand negative terminal ?,then from pos-
itive terminal ;and positive terminal =,each time beginning at the contacts on your own
vehicle first.
X Close cover :of positive terminal ;after removing the jump leads.
X Have the battery checked at aqualified specialist workshop.
i Jump-starting is not considered to be anormal operating condition.
i Jump-starting cables and further information regarding jump startingc an be obtained at
any qualified specialist workshop. Towing and tow-starting
Important safety notes
G
WARNING
If you tow the vehicle, you must use arigid
towing bar if: R
the engine is not running.
R there is abrake system malfunction.
R there is amalfunction in the power supply
or the vehicle's electrical system.
The power assistance for the steering and the
brake force booster do not work when the
engine is not running. You will need more
force to steer and brake, you may have to
depress the brake pedal with maximum force. 320
Towing and tow-startingBreakdown assistance

Befor
etowing away ,make sur ethat the steer-
ing can be move dand is not locked.
If yo utow or tow-start another vehicle, its
weigh tmustn ot excee dthe maximum per-
missible gros svehicle weigh tofyour vehicle. G
WARNING
The vehicle is braked when the HOLD function
or DISTRONIC PLUS is activated. Therefore,
deactivate HOLD and DISTRONIC PLUS if the
vehicle is to be towed.
! Only secure the tow rope or towing bar to
the towing eyes. The vehicle may otherwise
be damaged.
! Observe the following points when towing
with atow rope:
R secure the tow rope on the same side on
both vehicles.
R the tow rope must not be longer than is
legally permitted. It should be marked in
the middle, e.g. with awhite cloth
(30 x30c m) so thatothe rroad users are
aware that avehicle is being towed.
R the tow rope may only be attached to the
towing eyes.
R observe the brake lamps of the towing
vehicle while driving. Always maintain a
distance so that the tow rope does not
sag.
R do not use steel cables or chains to tow
your vehicle. The vehicle could be dam-
aged.
! Do not use the towing eye for recovery,
this could damage the vehicle. If in doubt,
recover the vehicle with acrane.
! When towing, pulla wayslowly and
smoothly .Ifthe tractive power is too high,
the vehicles could be damaged.
! To tow vehicles with KEYLESS-GO, use
the key instead of the Start/Stop button.
The automatic transmission may otherwise
switch to position Pwhen you open the driver's or front-passenger door which
could damage the transmission.
! You may tow the vehicle for amaximum
of 50km.At owing speed of 50 km/h must
not be exceeded.
For towing distances over 50 km, the entire
vehicle must be lifted up and transported.
! If you tow or tow-start another vehicle, its
weight must not exceed the maximum per-
missible gross vehicle weight of your vehi-
cle.
Information on your vehicle's gross vehicle
weight rating can be found on the vehicle
identification plate (Y page 359).
Observe the legal requirements for the rele-
vant countries when towing.
It is better to have the vehicle transported
than to have it towed.
If the vehicle has suffered transmission dam-
age, have it transported on atransporter or
trailer.
The automatic transmission must be in posi-
tion Nwhen the vehicle is being towed.
The battery must be connected and charged.
Otherwise, you:
R cannot turn the key in the ignition lock to
position 2
R cannot shift the automatic transmission to
position N
i Deactivate the automatic locking feature
(Y page 84). You could otherwise be locked
out when pushing or towing the vehicle.
Deactivate tow-away protection
(Y page 71) before the vehicle is towed. Fitting/removing the towing eye
Fitting the towing eye G
WARNING
The exhaust tail pipe may be hot. You could
burn yourself if you touch the tail pipe. Be Towing and tow-starting
321Breakdown assistance
Z

particularly careful when removing the rear
cover. Example: towing eye covers
Towing eye cover
s(AMG vehicles)
The mountings for the removable towing eyes
are located in the bumpers. They are at the
fron tand at the rear, under the covers.
X Remove the towing eye from the vehicle
tool kit (Y page 311).
X Pull cover :out of the bumper in the
direction of the arrow by inserting your fin-
gers int othe recess. X
Press the mark on cover ;inwards in the
direction of the arrow.
X Take cover ;off the opening.
X Screw the towing eye in clockwise to the
stop and tighten it.
Removing the towing eye X
Loosen the towing eye and unscrew it.
X Position the top of cover :in the bumper
and press it in at the bottom until it
engages.
X Attach cover ;to the bumper and press
until it engages.
X Place the towing eye in the vehicle tool kit. Towing the vehicle with the rear axle
raised
! The ignition must be switched off if you
are towing the vehicle with the rear axle
raised. Intervention by ESP ®
could other-
wise damage the brake system.
Only possible on vehicles without
4MATIC.
X Switc hont he hazard warning lamps
(Y page 114).
X Turn the key in the ignition lock to position
0and remov ethe key from the ignition
lock.
X When leaving the vehicle, take the key or
the KEYLESS-GO key with you.
When towing your vehicle with the rear axle
raised, it is important that you observe the
safety instructions (Y page 320). Towing the vehicle with both axles on
the ground
G
WARNING
The power assistance for the steering and the
brake forc ebooster do not work when the
engin eisnot running. You will then need 322
Towing and tow-startingBreakdown assistance

much more effort to brake and steer the vehi-
cle. Adapt yours tyleofd rivingaccordingly.
It is important tha tyou observe the safety
instructions when towing away your vehicle
(Y page 320).
The automatic transmission automatically
shifts to position Pwhen you open the driver's
or front-passenger door or when you remove
the key from the ignition lock. In order to
ensure that the automatic transmission stays
in position Nwhen towing the vehicle, you
must observe the following points:
X Make sure that the vehicle is stationary and
that the key is in position 0in the ignition
lock.
X Turn the key to position 2in the ignition
lock.
On vehicles with KEYLESS-GO, use the key
instead of the Start/Stop button
(Y page 141).
X Depress and hold the brake pedal.
X Shift the automatic transmission to posi-
tion N.
X Release the brake pedal.
X Release the parking brake.
X Switch on the hazard warning lamps
(Y page 114).
X Leave the key in position 2in the ignition
lock.
i When towing with the hazard warning
lamps switched on, use the combination
switch as usual to signal achange of direc-
tion. In this case, only the turn signals for
the desired direction flash. When the com-
bination switch is reset, the hazard warning
lamps start flashing again. Transporting the vehicle
! Only lash the vehicle down by the wheels
or wheel rims, not by parts of the vehicle
such as axle or steering components. Oth-
erwise, the vehicle could be damaged. The towing eye can be used to pull the vehicle
onto atrailer or transporter for transporting
purposes.
X Turn the key to position 2in the ignition
lock.
X Shift the automatic transmission to posi-
tion N.
As soon as the vehicle is loaded:
X Prevent the vehicle from rolling away by
applying the parking brake.
X Shift the automatic transmission to posi-
tion P.
X Turn the key in the ignition lock to position
0and remove the key from the ignition
lock.
X Secure the vehicle. Notes for 4MATIC vehicles
! Vehicles with 4MATIC must not be towed
with the front or rear axle raised; otherwise,
the transmission may be damaged.
If the vehicle has transmission damage or
damage to the front or rear axle, have it trans-
ported on atransporter or trailer.
In the event of damage to the electrical
system
If the battery is defective, the automatic
transmission will be locked in position P.To
shift the automatic transmission to position
N,y ou must provide power to the vehicle's
electrical system in the same way as when
jump-starting (Y page 319).
Have the vehicle transported on atransporter
or trailer. Tow-starting (emergency engine
starting)
! Vehicles with automatic transmission
must not be tow-started. The transmission
may otherwise be damaged. Towing and tow-starting
323Breakdown assistance Z

You can fin
dinformation on "Jump-starting"
at (Y page 319). Electrical fuses
Important safet
ynotes G
WARNING
Only use fuses that have been approved for
Mercedes-Ben zvehicles and which have the
correct fuse ratin gfor the systems con-
cerned. Do not attempt to repair or bridge
faulty fuses. Using fuses which have not been
approved or attempting to repair or bridge
faulty fuses could cause the fuse to be over-
loaded and result in afire. Have the cause
traced and rectified at aqualified specialist
workshop.
! Only use fuses that have been approved
for Mercedes-Benz vehicles and which
have the correct fuse ratin gfor the system
concerned. Otherwise, componentsors ys-
tems could be damaged.
The fuses in your vehicle serve to close down
faulty circuits. If afuse blows ,all th ecom po-
nent sont hecircuit and their function sstop
operating.
Blown fuse smust be replace dwith fuses of
the same rating, which you can recognise by
the colour and fuse rating. The fuse ratings
are listed in the fuse allocation chart.
If the newly inserted fuse also blows, have the
cause traced and rectified at aqualified spe-
cialist workshop, e.g. aMercedes-Benz
Servic eCentre. Befor
ereplacing afuse
X Secure the vehicle against rollin gaway
(Y page 159).
X Switch off all electrical consumers. X
Turn the key to position 0in the ignition
lock and remove it (Y page 141).
or
X On vehicles with KEYLESS-GO, make sure
the ignition is switched off (Y page 141).
All indicator lamps in the instrumen tcluster
must be off.
The fuses are located in various fuse boxes:
R fuse box in the engine compartmen tonthe
left-hand side of the vehicle, when viewed
in the direction of travel
R fuse box in the boot on the right-hand side
of the vehicle, when viewed in the direction
of travel
the fuse allocation chart is located in the vehi-
cle tool kit in the stowage compartment
under the boot floor (Y page 311). Fuse box in the engine compartment
G
WARNING
Make sure that the windscreen wipers are
turned off and the key is pulledo ut of the igni-
tion lock before you open the cover of the fuse
box. Otherwise, the windscreen wipers and
the wiper rods above the cover could be set
in motion. This could lead to you or others
being injured by the wiper rods.
! Make sure that no moisture can enter the
fuse box when the cover is open.
! When closing the cover, make sure that it
is lying correctly on the fuse box. Moisture
seeping in or dirt could otherwise impair
the operation of the fuses.
X Make sure that the windscreen wipers are
switched off.
X Open the bonnet. 324
Electrical fusesBreakdown assistance

X
Remove any existin gmoisture from the
fus eb ox usin gadry cloth.
X To open: takelines ;from th eguides.
X Mov easide lines ;.Route the lines behind
connection =to do this.
X Open clamps :.
X Remove the fuse box cover forwards.
X To close: check whether the rubber seal is
lying correctly in the cover.
X Insert the cover at the rear of the fuse box
into the retainer.
X Fold down cover and close clamps :.
X Secure lines ;in the guides.
X Close the bonnet. Fuse box in the boot
! Make sure that no moisture can enter the
fuse box when the cover is open.
! When closing the cover, make sure that it
is lying correctly on the fuse box. Moisture
seeping in or dirt could otherwise impair
the operation of the fuses.
X Open the boot lid. X
To open: release cover :at the top right
and left-hand sides with aflat object.
X Open cover :downwards in the direction
of the arrow. Electrical fuses
325Breakdown assistance Z

326

Useful information
............................328
Importan tsafet ynotes .................... 328
Operation ........................................... 328
Winter operation ............................... 330
Tyr epressure .................................... 331
Changing awheel ............................. 336
Wheel and tyr ecombinations ..........341
Emergency spar ewheel ................... 351 327Wheels and tyres