2011 MERCEDES-BENZ E-CLASS CABRIOLET clock

data" section to find out whether this applies
to your vehicle. If you utilise any of the added
maximum rear axle load when towin gatrailer,
the vehicle/trailer combination may not
exceed amaximum speed of 100 km/ hfor
reasons concerning the operatin gpermit.
This also applies in countries in which the
permissible maximum speed for vehicle/
trailer combinations is above 100 km/h.
When towin gatrailer, your vehicle's handling
characteristic swill be differen tincomparison
to when driving without atrailer.
The vehicle/trailer combination:
R is heavier
R is restricted in its acceleration and gradi-
ent-climbing capability
R has an increased braking distance
R is affected more by strongc rosswinds
R demands more sensitive steering
R consumes more fuel
On long and steep downhill gradients, you
must shift to alower gear in good time, or on
vehicles with automatic transmission, select
the shift range 1,2or 3.
i This also applies if you have activated
cruise control, SPEEDTRONIC or DIS-
TRONIC PLUS.
This will use the braking effect of the engine,
so less braking will be required to maintain
the speed. This relieves the load on the brake
system and prevent sthe brakes from over-
heating and wearing too quickly. If you need
additional braking, depress the brake pedal
repeatedly rather than continuously.
Driving tips R
Maintain agreater distance from the vehi-
cle in front than when driving without a
trailer.
R Avoid braking abruptly. If possible, brake
gently at first to allow the trailer to run on.
Then, increase the braking force rapidly.
R The values given for gradient-climbing
capabilities from astandstill refer to sea level. When driving in mountainous areas,
notet hat the power output of the engine,
and consequently the vehicle's gradient-
climbing capability, decrease with increas-
ing altitude.
If the trailer swings from side to side:
X Do not accelerate.
X Do not counter-steer.
X Brake if necessary. Folding out the ball coupling
Before you can tow atrailer with your vehicle,
you must fold out the ball coupling.
The release wheel is located behind the left-
hand side trim panel in the boot. G
WARNING
Make sure that the ball coupling is engaged,
either in its folded-out or folded-in position,
and that the indicator lamp is off.
Do not turn the release wheel when atrailer
is coupled up. Otherwise, the trailer might
detach. X
To open the cover: turn handle:anti-
clockwise and fold down cover ;.206
Trailer towingDriving and parking

X
Pull out release wheel ;.
X Turn release wheel ;anti-clockwise until
the ball coupling releases and folds out
from under the rear bumper. Indicator
lamp :flashes. X
Pull the ball coupling in the direction of the
arrow until it engages in avertical position.
Indicator lamp :goes out. The power
socket folds down automatically.
The multifunction display shows the
Trailer hitch Check lock mech. mes-
sage until the ball coupling is engaged.
X Remove the protective cap from the ball
coupling and store it in asafe place.
X Make sure that the ball of the ball coupling
is clean and that, depending on the trailer
specification, it is greased or dry (without
grease) when used. Coupling up
atrailer G
WARNING
Do not disconnect atrailer with an engaged
overrun brake. Otherwise, your hand could
become trapped between the bumper and
trailer drawbar.
X Make sure that the transmission is in posi-
tion P.
X Apply the parking brake.
X Position the trailer level behind the vehicle.
X Couple up the trailer.
X Establish the electrical connection
between the vehicle and the trailer.
X Check that the trailer lighting system is
working. Decoupling
atrailer G
WARNING
As soon as yo uraise the trailer drawbar ,the
unladen vehicl erises slightly. Th evehicl ethen
lowers to driving level.
Make sure tha tnobody is in the vicinit yofthe
wheel arch or the underbody. You could oth-
erwise trap yourself or others. G
WARNING
The vehicle is lowered as soon as you discon-
nect the trailer cable. Make sure that nobody
is in the vicinit yofthe wheel arch or the
underbody. You could otherwise trap yourself
or others.
As soon as you decouple the trailer, the unla-
den vehicle rises slightly. Make sure that you
or others are not injured in the process.
! Do not disconnect atrailer with an
engaged overrun brake. Otherwise, your
vehicle could be damaged by the rebound-
ing of the overrun brake.
X Make sure that the transmission is in posi-
tion P.
X Apply the parking brake. Trailer towing
207Driving and parking Z

X
Secure the traile ragainst rolling away.
X Remove the trailer cable and decouple the
trailer. Folding in the ball coupling
i Fold the ball coupling back in if you are
not using the trailer tow hitch. G
WARNING
Make sure that no persons or animals are in
the pivoting range of the ball coupling. Other-
wise, they could be injured.
X Place the protective cap on the ball cou-
pling.
The release wheel is located behind the left-
hand side trim panel in the boot. X
To open the cover: turn handle:anti-
clockwise and fold down cover ;. X
Pull out release wheel ;.
X Turn release wheel ;anti-clockwise.
The ball coupling unlocks and lowers. Indi-
cator lamp :flashes. X
Press the ball coupling in the direction of
the arrow until it engages behind the
bumper.
Indicator lamp :goes out and the mes-
sage in the multifunction display disap-
pears. Trailer power supply
When it leaves the factory, your vehicle's
trailer socket is equipped with apermanent
power supply and apower supply that is
switched on via the ignition lock.
The permanent power supply is supplied via
trailer socket pin 9.
The power supply that is switched on via the
ignition lock is supplied via trailer socket pin
10.
! You can connect consumers with apower
rating of up to 240 Wtothe permanent
power supply and up to 180 Wtothe power
supply that is switched on via the ignition
lock.
You must not charge atrailer battery using
the power supply.
The trailer's permanent power supply is
switched off in the event of low vehicle supply
voltage and after six hours at the latest. 208
Trailer towingDriving and parking

You can obtain further information about
installing the trailer electrics fro maqualified
specialist workshop, e.g. aMercedes-Benz
Service Centre.
X To switch the connected power supply
on or off: turn the key in the ignition lock
to position 2or 0respectively. Bulb failur
eindicator for LED lamps
i If LED lamps are fitted in the trailer, an
error message may appear in the multi-
function display even if ther eisnofault. The
reason for the error message may be that
the curren thas falle nbelow the minimum
of 50 milliamperes (mA).
To ensure reliable operation of the bulb failure
indicator, each LED chain in the trailer lighting
must be guaranteed aminimum curren tof
50 mA. Trailer with 7-pin connector
General information If your trailer has
a7-pin connector, you can
connectittot he 13-pin socket on the ball
coupling using an adapter or, if necessary, an
adapter cable. Bothoft hese can be obtained
at aq ualified specialist workshop, e.g. at a
Mercedes-Benz Service Centre.
Fitting the adapter X
Open the socket cover.
X Inser tthe connector with lug :into
groove ;on the socket and turn the con-
nector clockwise to the stop.
X Let the cover engage.
X If you are using an adapter cable, secure
the cable to the trailer with cable ties.
! Make sure that ther eissufficien tcable
play so that th ecabl ecanno tbecome
detached when cornering. Trailer towing
209Driving and parking Z

Fron
tstowage compartments Glov
ecompartment
i The glov ecom partmen tcan be ventilated
(Y page 142). X
To open: pull handle :and open glove
compartmen tflap ;.
X To close: fold glovecom partmen tflap ;
upwards until it engages.
The glove compartmen tcan only be locked
and unlocked usin gthe emergenc ykey ele-
ment. X
To lock: insert theemergenc ykey element
int ot he locka nd tur nit90°clockwise to
position 2.
X To unlock: insert theemergenc ykey ele-
men tint ot he locka nd tur nit90°anti-
clockwise to position 1. Stowage compartment in th
ecentre con-
sole Example
:Coupé
X To open: slide cover :back.
Stowage compartment/telephone com-
partment under the armrest
i Asmall and alarg estowage compartment
are located under the armrest. The small
stowage compartment can be removed for
emptying. The mobil ephone bracket is
located in the larg estowage compartment.
i Depending on the vehicle's equipment, a
USB port and an AUX-IN jack or aMedia
Interface are installed in the stowage com-
partment. AMediaInterface is auniversal
interface for portable audio equipment, e.g.
for an iPod ®
or MP3 player (see the sepa-
rate Audio or COMAND APS operating
instructions). Example: Coupé
X
To open: press left-hand button ;or right-
hand button :.
The stowage compartment opens. Stowage areas
265Stowing and features Z

X
Slowl yslide oi ldipstick :into the guide
tub etot he stop ,and take it ou tagain.
The oil level is correc tifthe level is between
MIN mark =and MAX mark ;.
X Top up the oil if necessary.
Adding engine oil H
Environmental note
When topping up the oil, take care not to spill
any. If oil enters the soil or waterways, it is
harmful to the environment. G
WARNING
If engine oil comes into contact with hot
engine parts, it may ignite and you could burn
yourself. Do not spill any engine oil on hot
engine parts. Example: engine oil cap
X
Turn cap :anti-clockwise and remove it.
X Top up with the amount of oil required.
Fill carefully to the maximum mark on the oil
dipstick.
i Depending on the engine, the difference
between the minimum mark and the maxi-
mum mark is approximately 1.5 –2litres.
! Do not add too much oil. If the oil level is
above the "max" mark on the dipstick, too
much oil has been added. This can lead to
damage to the engine or the catalytic con-
verter. Have excess oil siphoned off.
For further information on engine oil, see
(Y page 335). X
Replace cap :on the filler neck and
tighten clockwise.
Ensure that the cap locks into place
securely. Checking and adding other service
products
Checking the coolant level Only check the coolant level when the vehicle
is on alevel surface and the engine has cooled
down.
X Turn the key to position 2(Y page 147) in
the ignition lock.
On vehicles with KEYLESS-GO, press the
Start/Stop button twice (Y page 147).
X Check the coolant temperature displayin
the instrumentc luster. 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
Slowl yturnc ap : half aturna nti-clock-
wise and 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, there is
enough coolant in coolant expansion
tank ;. Engine compartment
283Maintenance and care Z

If the coolant level is approximately 1.5 cm
above marker bar =in the filler neck when
warm, there is enough coolant in coolant
expansio ntank ;.
X If necessary, to pupwithc oolan tthat 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 337).
Windscreen washer system and head-
lamp cleanings ystemThe washer fluid reservoir is used for both the
windscreen washer system and the headlamp
cleaning system.
i
Components and service products must
be matched. Mercedes-Ben zrecommends
that you use products tested and approved
by Mercedes-Benz. They are listed in this
Mercedes-Ben zOwner's Manual in the
appropriat esection.
You can identif yservice product sapproved
by Mercedes-Ben zbythe followin ginscrip-
tions on the container:
R MB-Freigabe (e.g. MB-Freigabe 371.0)
R MB-Approval (e.g. MB-Approval 371.0)
Other labels and recommendations that
make reference to quality level or aspeci-
fication according to an MB Sheet no. (e.g.
MB 371.0) are not necessarily approved by
Mercedes-Benz.
You can obtain further information from
any Mercedes-Benz Servic eCentre. G
WARNING
Windscreen washer fluid is highly flammable.
Fire, naked flames and smokin gare prohibi-
ted when handling washer fluid concentrate.
! Only use washer fluid concentrate which
is suitable for plastic lamp lenses. Unsuit-
able washer fluid concentrate could dam- age the plastic lamp lenses of the head-
lamps.
! Do not use distilled or de-ionised water in
the washer fluid reservoir. Otherwise, the
level sensor may be damaged.
i Add windscreen washer concentrate, e.g.
MB SummerFit, to the washer fluid all year
round. Example: washer fluid reservoir
X
Mix the windscreen washer fluid in acon-
tainer beforehand.
X At temperatures above freezing: fill the
washer fluid reservoir with amix of water
and windscreen washer concentrate (e.g.
MB SummerFit).
X At temperatures below freezing: fill the
washer fluid reservoir with amix of water
and windscreen washer concentrate (e.g.
MB WinterFit). Adapt the mixing ratio to the
outside temperatures.
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. Maintenance
ASSYST PLUS service interval display
Service messages Information on the type of service and service
intervals (see separat
eServic eBooklet). 284
MaintenanceMaintenance and care

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