engine MERCEDES-BENZ E-CLASS CABRIOLET 2011 Owners Manual

You can obtain further information fro
ma
Mercedes-Ben zService Centre.
The ASSYS TPLUS service interval display
informs you when the nex tservice is due.
The multifunction display shows aservice
message for afew seconds, e.g.:
Next service Adue in .. days Service
Adue Service
Aoverdue by ... days The letter indicates which servic
eisdue.A stands for
aminor servic eand B for
am ajor
service. Anumber or another letter may be
displayed after the letter. This figure indicates
any necessary additional maintenanc ework
to be performed.
If you report this displayed information to a
qualified specialist workshop, for example a
Mercedes-Benz Service Centre, they can
infor myou of the costst he service will incur.
The ASSYST PLUS service interval display
does not take into account any periods of
time during which the battery is disconnec-
ted.
Maintaining the time-dependent service
schedule:
X Note down the service due date displayed
in the multifunction display before discon-
necting the battery.
or
X Subtract the battery disconnection periods
from the service date shown on the display
after reconnecting the battery.
i The ASSYST PLUS service interval display
does not show any information on the
engine oil level. Observe the notes on the
engine oil level (Y page 282).
Hiding aservice message X
Pres sthe % ora button on th esteer-
ing wheel. Displaying service messages X
Switch th eignitio non.
X Press =or; on the steering wheel
to select the Serv. menu.
X Press 9or: to select the ASSYST PLUS submenu and press
ato confirm.
The servic eduedate appear sinthe multi-
functio ndisplay.
Please bear th efollowing in mind Resetting th
eASSYST PLUS service inter-
val display
Aq ualified specialist workshop, e.g. a
Mercedes-Ben zService Centre, will reset the
ASSYST PLUS servic einterval display after
the servic ework has been carried out.
You can obtain further information ,e.g.
regarding servic ework, from aMercedes-
Benz Service Centr eordirectly from
Mercedes-Benz.
! If the ASSYST PLUS servic einterval dis-
play has been inadvertently reset ,this set-
tingc an be corrected at aMercedes-Benz
Service Centre.
Have servic ework carried out as described
in the Service Booklet. This may otherwise
lead to increased wear and damage to the
major assemblies or the vehicle.
Driving abroad
An extensive Mercedes-Benz Service network
is also available in other countries. The
Service Hotline's curren ttelephone numbers
for use when you are abroad are to be found
in the "Mercedes-BenzS ervice24h" section
of the Service Booklet. Care
Notes on care
Regular care of your vehicle is acondition for
retaining the quality in the long term. Care
285Maintenance and care Z

R
Jack
R Centrin gpin
R On ep air of gloves
R Whee lwrench
R Towin geye "Minispare" emergency spare wheel
The "Minispare" emergency spar ewheel can
be foun dinthestowage well unde rthe boot
floor.
X Lift the boot floor upwards (Y page 268).X
Remove vehicle tool kit tray ;.
X Turn stowage well =anti-clockwise and
remove it.
X Remove "Minispare" emergency spare
wheel :.
For further information on changing awheel
and fittingt he spare wheel, see
(Y page 296). Flat tyre
Preparing the vehicle
Your vehicle may be equipped with:
R aT IREFIT kit
R an emergency spare wheel
R MOExtended tyres (tyres with run-flat char-
acteristics) (Y page 305)
i Vehicle preparation is not necessary on
vehicles with MOExtended tyres. i
Vehicles with MOExtended tyres are not
equipped with aTIREFIT kit at the factory.
It is therefore recommended that you addi-
tionally equip your vehicle with aTIREFIT kit
if you fit tyres that do not feature run-flat
properties, e.g. winter tyres. ATIREFIT kit
can be obtained from aMercedes-Benz
Service Centre.
X Stop the vehicle as far away as possible
from traffic on solid, non-slippery and level
ground.
X Switch on the hazard warning lamps.
X Firmly depress the parking brake.
X Bring the front wheels into the straight-
ahead position.
X Vehicles with manualt ransmission:
engage first or reverse gear.
X Vehicles with automatic transmission:
move the selector lever to P.
X Switch off the engine.
X Vehicles without KEYLESS-GO: remove
the key from the ignition lock.
X Vehicles with KEYLESS-GO: open the
driver's door.
The on-board electronicsh ave status0,
which is the same as the key having been
removed.
X Vehicles with KEYLESS-GO: remove the
Start/Stop button from the ignition lock
(Y page 147).
X All occupants must get out of the vehicle.
Make sure that they are not endangered as
they do so.
X Make sure that no one is near the danger
area whilst awheel is being changed. Any-
one who is not directly assisting in the
wheel change should, for example, stand
behind the barrier.
X Get out of the vehicle. Pay attention to traf-
fic conditionsw hen doing so.296
Flat tyreBreakdown assistance

X
Fold both plates upwards :.
X Fold ou tlower plate ;.
X Guide the lugs on the lower plate fully into
the openings in base plate =.Securing the vehicle on level ground (example:
Coupé)
X
On level ground: place chocksorother
suitable items under the front and rear of
the wheel that is diagonally opposite the
wheel you wish to change. Securing the vehicle on slight downhill gradients
(example: Coupé)
X On downhill gradients: place chocksor
other suitable items in front of the wheels
of the front and rear axle.
Raising the vehicle G
WARNING
The jack is intended only for lifting the vehicle
briefly for wheel changes.
The vehicle must be placed on stands if you
intendtow ork under it. Make sure that the jack is placed on
afirm,
non-slip, level surface. Do not use wooden
blocks or similar object sasajack underlay.
The vehicle could otherwise slip off the jack
and seriously injure you.
Do not start the engine at any time while the
wheel is being changed.
Do not lie under the vehicle when it is being
supported by the jack.Ify ou do not raise the
vehicle as described, it could slip off the jack
(e.g. if the engine is started or adoor or the
boot lid is opened or closed) and seriously
injure you. G
WARNING
If you fail to position the jack correctly, the
vehicle may:
R slip off the jack
R injure you or others
R be damaged.
Therefore, make sure that the jack is posi-
tioned correctly in the respectiv ejacking
points. Before positioning the jack,r emove
any dirt that may have collected in the jacking
points. Please note that you must position the
jack in the opening of the jacking point. X
Using wheel wrench :,loosen the bolts on
the wheel you wish to change by about one
full turn. Do not unscrew the bolts com-
pletely.
The jacking points for the jack are located
behind the wheel housings of the front wheels
and in front of the wheel housings of the rear
wheels (arrows). 302
Flat tyreBreakdown assistance

Only replace
abattery with abattery that has
been recommended by Mercedes-Benz.
Consult aMercedes-Benz Service Centre if
you wish to leave your vehicle parked up for
al ong period of time. G
WARNING
Comply with safety precautions and take pro-
tective measures when handling batteries. Risk of explosion
Fire, naked flames and
smoking are prohibited
when handling the battery.
Avoid creating sparks.
Battery acid is caustic.
Avoid contact with the skin,
eyes or clothing.
Wear suitablep
rotective
clothing, in particular
gloves, an apron and aface
mask.
Immediately rinse acid
splashes off with clean
water. Consult adoctor if
necessary. Wear eye protection.
Keep children away.
Observe this Owner's Man-
ual.
H
Environmental note Batteries contain pollutants.
It is against the law to dis-
pose of them with the house-
hold rubbish. They must be
collected separately and recycled in an environmen-
tally responsible manner.
Dispose of batteries in an
environmentally responsible
manner. Take discharged
batteries to
aqualified spe-
cialist workshop, e.g. a
Mercedes-Benz Service
Centre, or to aspecial col-
lection point for old batter-
ies. G
WARNING
For safety reasons, Mercedes-Benz recom-
mends that you only use batteries which have
been tested and approved for your vehicle by
Mercedes-Benz.T hese batteries provide
increased impact protection to prevent vehi-
cle occupants from suffering acid burns
should the battery be damaged in the event
of an accident.
To prevent acid burns, observe the following
safety notes when handling batteries:
R do not lean over the battery.
R do not place any metal objectsonab attery.
Otherwise, you could cause ashort circuit
and the battery's gas mixture could ignite.
R make sure that you do not create an elec-
trostatic charge, e.g. by wearing synthetic
clothing or as aresult of friction on fabrics.
Therefore, you should not pull or slide the
battery over carpets or other synthetic
materials.
R never touch the battery first. To discharge
ap ossible electrostatic charge, step out of
the vehicle first and touch the bodywork.
R do not wipe the battery using acloth. The
battery may explode as aresult of electro-
static charge or due to flying sparks.
! Switch off the engine and remove the key
before disconnecting the terminal clamps
from the battery. On vehicles with KEY-
LESS-GO, make sure that the ignition is
switched off. Check that all the indicator
lamps in the instrumentc luster are off.You 306
BatteryBreakdown assistance

Removing/fitting the battery
X To remove: disconnect the battery
(Y page 307).
X Loosen the bol twhich holds the battery in
place.
X Remove the battery.
X To fit: follow the steps described in "To
remove" in reverse order. Reconnecting the battery
! Always connect the battery in the order
described below. Never swap the terminal
clamps. You may otherwise damage the
vehicle electronics.
X Switch off all electrical consumers (e.g.
radio, blower, etc.).
X Connect the positive terminal clamp and
secure the cover.
X Connect the negative terminal clamp.
X Put the filter box back in place, then clip in
and close the retaining clamps.
X Close the bonnet.
i If the power supply has been interrupted,
e.g. if the battery has been reconnected,
you must carry out the following tasks:
R set the clock (Y page 226).
R reset the function for automatically fold-
ing the exterior mirrors in/out by folding
the mirrors out once (Y page 110).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 about battery
chargers which allow the battery to be charged while still installed from
aqualified
specialist workshop, e.g. aMercedes-Benz
Service Centre. 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 chargin gprocess. G
WARNING
Battery acid is caustic. Avoid contact with the
skin ,eyes or clothing.
! Only charge the installed batter ywith a
batter ycharger which has been tested and
approved by Mercedes-Benz .These battery
chargers allow the battery to be charged
while still installed.
! 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 309).
X Open the bonnet (Y page 281).
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 309).
X Read the battery charger's operating
instructions before charging the battery. 308
BatteryBreakdown 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 safety precautions when handling batteries. You will find these under "Battery" in
the index.
! Avoid repeated and lengthy startinga ttempts. Otherwise, non-combusted fuel may dam-
age the catalytic converter 22
and create arisk of fire.
Do not use arapid-charging device to start the engine.
Make sure the jump leads are not damaged.
Make sure the jump leads are not touching any other metal objectsw hen they are connected
to the battery.
If your vehicle's battery is discharged, the engine can be jump-started from another vehicle
or from asecond battery using jump leads.
Observe the following points:
X The battery is not accessible in all vehicles. If the other vehicle's battery is not accessible,
jump-start the vehicle using asecond battery or ajump-starting device.
X Only jump-start th evehicl ewhen th eengineisc olda nd th ecatalyti cconverter system has
cooled down 23
.
X Do not start the engine if the battery is frozen. Let the battery thaw first.
X Jump-starting may only be performed from batteries with anominal voltage of 12 V.
X Only use jump leads which have asufficient cross-section and insulated terminal clamps.
X Make sure that the jump leads cannot come into contact with parts, such as the pulley or
the fan. These parts move when the engine is started and while it is running.
X If the battery is fully discharged, leave the battery that is being used to jump-start connected
for afew minutes before attempting to start.T his charges the empty batteryalittle.
i Jump leads and further information about jump-starting can be obtained from any
Mercedes-Ben zService Centre, for example.
X Make sure that the two vehicles do not touch.
X Apply the parking brake firmly.
X Manual transmission: engage neutral.
X Automatic transmission: move the selector lever toP.
X Switch off all electrical consumers (e.g. radio, blower, etc.).
X Open the bonnet (Y page 281).
22 Only vehicles with apetrol engine.
23 Only vehicles with apetrol engine. Jump-starting
309Breakdown assistance Z

Position number
Bidentifies the charged batter yofthe other vehicle or an equivalent jump-
starting device.
X Slide cover :of positive terminal ;in the direction of the arrow.
X Connec tpositive terminal ;on your vehicle to positive terminal =of donor battery B
using the jump lead, beginning with your own battery.
X Start the engine of the donor vehicle and run it at idling speed.
X Connect negative terminal ?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 Allow the engine to run for afew minutes before disconnecting the jump lead.
X First, remove the jump lead from earth point Aand negative terminal ?,then from positive
terminal ;and positive terminal =,each time disconnecting from the contacts on your
own vehicle first.
X After removing the jump lead, close cover :on positive terminal ;.
X Have the battery checked at aqualified specialist workshop, e.g. aMercedes-BenzS ervice
Centre. The jump-starting procedure is not astandard operatin gstate; therefore, have the
batter ychecked. Towing and tow-starting
Important safet
ynotes
Observe the legal requirements for the rele-
vant countries when towing and tow-starting. G
WARNING
If you tow the vehicle, you must use arigid
towing bar if: 310
Towing and tow-startingBreakdown assistance

R
the engine is not running.
R there is abrake syste mmalfunction.
R there is amalfunctio ninthe 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.
Before towing away,m ake sure that the steer-
ing can be moved and is not locked.
If you tow or tow-start another vehicle, its
weight must not exceed the maximum per-
missible gross vehicle weight of your 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.
It is better to have the vehicle transported
than to have it towed.
! You may tow the vehicle for amaximum
of 50 km. Atowing speed of 50 km/h must
not be exceeded.
For towing distances over 50 km, the entire
vehicle must be lifted up and transported.
! Only secure the tow rope or towing bar to
the towing eyes. The vehicle may otherwise
be damaged.
! Do not use the towing eye for recovery,
as this could damage the vehicle. If in
doubt, recover the vehicle with acrane.
! Pull away smoothly when towing away or
tow-starting avehicle. If the tractive power
is too high, the vehicles could be damaged.
! On vehicles with KEYLESS-GO, use the
key instead of the Start/Stop button. Turn
the key to position 2in the ignition lock and
shift the automatic transmission to N.
Then, turn the key back to 0and leave it in
the ignition lock. When towing
avehicle with an automatic
transmission, the transmission must be in
position N.
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 transmission to position
N on vehicles with automatic transmission
Vehicles with automatic transmission:
release the selector lever lock manually to
move it out of position P(Y page 160).
i Before the vehicle is towed, switch off the
automatic locking feature (Y page 78). You
could otherwise be locked out when push-
ing or towing the vehicle.
Deactivate tow-away protection
(Y page 68) before the vehicle is towed. Fitting/removing the towing eye
Fitting the towing eye Vehicles with
atrailer tow hitch: if you intend
to use the vehicle for towing, fold out the ball
coupling and connect the towbar to it
(Y page 206).
X Remove the towing eye from the vehicle
tool kit (Y page 295). G
WARNING
The exhaust tail pipe may be hot. You could
burn yourself if you touch the tail pipe. Be
particularly careful when removing the rear
cover.
The mountings for the removable towing eyes
are located in the bumpers. They are at the
front and at the rear, under the covers. Towing and tow-starting
311Breakdown assistance Z

Example: Cabriolet
X
Press the mark on cover :inwards in the
direction of the arrow.
X Take cover :off the opening.
X Screw the towing ey einclockwise to the
stop and tighten it.
Removing the towin geye X
Loosen the towing ey eand unscrew it.
X Attach cover :to the bumpe rand press
unti lite ngages.
X Place the towing ey einthe vehicl etool kit. Towin
gthe vehicle with the rear axle
raised
Whe ntowing your vehicle with the rear axle
raised, it is important that you observe the
safety instructions (Y page 310).
! 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. X
Switch on the hazard warning lamps
(Y page 117).
X Turn the key in the ignition lock to position
0and remove the key from the ignition
lock.
X When leaving the vehicle, take the key or
the KEYLESS-GO key with you. Towing the vehicle with both axles on
the ground
It is important that you observe the safety
instructions when towing away your vehicle
(Y page 310). G
WARNING
The power assistance for the steering and the
brake force booster do not work when the
engine is not running. You will then need
much more effort to brake and steer the vehi-
cle. Adapt your style of driving accordingly.
X Switch on the hazard warning lamps
(Y page 117).
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.
X Turn the key to position 2in the ignition
lock.
X When the vehicle is stationary, depress the
brake pedal and keep it depressed.
X Vehicles with manualt ransmission:
depress the clutch pedal.
X Shift to neutral.
or
X Vehicles with automatic transmission:
shift the automatic transmission to posi-
tion N.
X Release the brake pedal.
X Release the parking brake. 312
Towing and tow-startingBreakdown assistance

Transporting the vehicle
The towing eyes or trailer tow hitch can be
used to pull the vehicl eonto atrailer or trans-
porter if yo uwishtot ransport it.
X Vehicle swithm anual transmission:
shift to neutral.
X Vehicle switha utomatic transmission:
tur nthe key to position 2in the ignition
lock.
X Move the selector lever to N.
As soon as the vehicle is loaded:
X Prevent the vehicle from rolling away by
applying the parking brake.
X Vehicles with manualt ransmission:
shift to first gear or reverse gear.
X Vehicles with automatic transmission:
move the selector lever to P.
X Turn the key in the ignition lock to position
0 and remove the key from the ignition
lock.
X Secure 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. Tow-starting (emergency engine
starting)
When tow-starting, it is important that you
observe the safety instructions (Y page 310)
and the legal requirements in each respective
country.
! Vehicles with automatic transmission
must not be tow-started. The transmission
may otherwise be damaged.
Before tow-starting the following conditions
must be fulfilled:
R the battery is connected.
R the engine has cooled down.
R the catalytic converters have cooled down. X
Switch on the hazard warning lamps
(Y page 117).
X Fit the towing eye (Y page 311).
X Secure the rigid towing bar or the towing
rope.
X Depress and hold the brake pedal.
X Turn the key to position 2in the ignition
lock.
X Depress the clutch pedal and keep it
depressed.
X Shift to neutral.
X Release the brake pedal.
X Tow-start the vehicle.
X Engage second gear.
X Release the clutch pedal slowly;don ot
operate the accelerator pedal while doing
so.
The engine is started.
X Depress the clutch pedal and shift to neu-
tral.
X Stop at asuitable place.
X Apply the parking brake.
X Remove the rigid towing bar or towing rope.
X Remove the towing eye (Y page 312).
X Switch off the hazard warning lamps. Electrical fuses
Important safety notes
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. G
WARNING
Only use fuses that have been approve dfor
Mercedes-Ben zvehicles and which have the
correct fuse ratin gfor the systems con-
cerned. Do not attempt to repair or bridge
faulty fuses. Otherwise, acircuit overload
could cause afire. Have the cause traced and
rectified at aqualified specialist workshop,
e.g. aMercedes-Benz Service Centre. Electrical fuses
313Breakdown assistance Z