2012 MERCEDES-BENZ E-CLASS CABRIOLET washer fluid

Reversing camera
Cleaning instructions .....................317
Function/notes ............................. 206
Switching on/off ........................... 207
Reversing lamp (display message) ..258
Roll bar Display message ............................ 254
Operation ........................................ .47
Rolle rsunblind
Panorama sliding sunroo f.............. 104
Rea rwindow .................................. 293
Roof
Overview .......................................... 92
see Soft top
Roof lining and carpets (cleaning
instructions) ...................................... 319
Roof load (maximum) ........................378 S
Safety Childre ninthe vehicle ..................... 53
Child restraint systems ....................53
Safety system
see Driving safety system
Seat
Seat backres tdisplay message .....271
Seat belt
Adjusting the driver's and front-
passenger sea tbelt ......................... 51
Automatic comfort-fit feature ..........53
Belt force limiter .............................. 52
Belt tensioner .................................. 52
Cleaning ......................................... 319
Display message ............................ 254
Fastening ......................................... 50
Important safety guidelines .............49
Rea rseat belt status indicator .........52
Releasing ......................................... 51
Switching belt adjustment on/off
(on-board computer) ......................247
Warning lamp ................................. 276
Warning lamp (function) ................... 52
Seats
Adjusting (electrically). ..................110
Adjusting (manually and electri-
cally) .............................................. 110Adjusting the 4-way lumba
rsup-
por t................................................ 113
Adjusting the head restraint ..........111
Cleaning the cover .........................318
Correct driver's sea tposition ........108
Folding the backrests forward/
back ............................................... 112
Important safety notes ..................109
Overview ........................................ 109
Seat heating problem ....................114
Seat ventilation problem ................115
Storing settings (memory func-
tion) ............................................... 120
Switching AIRSCARF on/off ..........115
Switching sea theating on/off .......113
Switching the sea tventilation on/
off .................................................. 114
Selector lever
Cleaning ......................................... 318
Sensors (cleaning instructions) .......317
Service see ASSYST PLUS
Service Centre
see Qualified specialist workshop
Service menu (on-board computer) .241
Service products Brake fluid ..................................... 376
Coolant (engine) ............................ 376
Engine oil ....................................... 375
Fuel ................................................ 372
Important safety notes ..................371
Washer fluid .................................. .377
Settings
Factory (on-board computer) .........248
On-board computer .......................242
Setting the air distribution ...............145
Setting the airflow ............................146
Short journeys (diesel particle fil-
ter) ...................................................... 180
Sidebag ................................................ 45
Side lamps Switching on/off ........................... 125
Side windows
Convenience closing ........................90
Convenience opening ......................90
Important safety notes ....................87
Opening/closing .............................. 88
Opening/closing all (Cabriolet) ........88 16
Index

LIM (cruise control) ........................ 183
LIM (DISTRONIC PLUS)
..................190
LIM (variable SPEEDTRONIC) .........186
Overview .................................. 32, 275
PASSENGER AIRBAG OFF ................56
Reserve fuel ................................... 281
Seat bel t........................................ 276
SRS ................................................ 280
Warning triangle ................................ 322
Washer fluid Display message ............................ 273
Wheel bol ttightening torque ...........350
Wheel chock ...................................... 347
Wheels Changing/replacing .......................346
Changing awheel .......................... 346
Checking ........................................ 341
Cleaning ......................................... 315
Cleaning (warning) .........................346
Emergency spare wheel .................363
Fitting anew wheel ........................ 349
Fitting awheel ............................... 346
Important safety notes ..................340
Removing awheel .......................... 349
Storing ........................................... 346
Tightening torque ........................... 350
Whee lsize/tyre size ...................... 350
Wind deflector
see AIRCAP
Wind deflector (cleaning instruc-
tions) .................................................. 315
Windowbag Operation ........................................ .47
Windows
Cleaning ......................................... 316
see Side windows
Windscreen
Demisting ...................................... 146
Windscreen washe rfluid
see Windscreen washer system
Windscreen washer system
Notes ............................................. 377
Topping up ..................................... 310
Windscreen wipers
Problem (malfunction) ...................136
Replacing the wiper blades ............136
Switching on/off ........................... 135Winter operation
Important safety notes ..................342
Radiator cover ............................... 308
Slippery road surfaces ...................182
Snow chains .................................. 343
Winter tyres
Limiting the speed (on-board com-
puter) ............................................. 245
M+S tyres ...................................... 342
Wiper blades
Cleaning ......................................... 316
Important safety notes ..................136
Replacing ....................................... 136
Wooden trim (cleaning instruc-
tions) .................................................. 318
Workshop see Qualified specialist workshop 20
Index

X
Pull out bulb holder ;.
X Take the bulb out of bulb holder ;.
X Inser tthe new bulb into bulb holder ;.
X Insert bulb holder ;.
X Align housing cover :and turn it clock-
wise until it engages.
Turn signal lamp (halogen headlamps) Due to their location, have the bulbs in the
left-hand headlamp changed at a qualified
specialist workshop
X Switch off the lights.
X Open the bonnet.
X Turn bulb holder :anti-clockwise and pull
it out.
X Turn the bulb anti-clockwise, applying
slight pressure, and remove it from bulb
holder :.
X Insert the new bulb into bulb holder :and
turn it clockwise.
X Insert bulb holder :into the lamp and turn
it clockwise. Windscreen wipers
Switching the windscreen wipers on/
off G
WARNING
The windscreen will not longer be wiped prop-
erly if the wiper blades are worn. This could
prevent you from observing the traffic condi- tions, thereby causing an accident. Replace
the wiper blades twice a year, ideally in spring
and autumn.
! Do not operate the windscreen wipers
when the windscreen is dry, as this could
damage the wiper blades. Moreover, dust
that has collected on the windscreen can
scratch the glass if wiping takes place when
the windscreen is dry.
If it is necessary to switch on the wind-
screen wipers in dry weather conditions,
always operate them using washer fluid.
! If the windscreen wipers leave smears on
the windscreen after the vehicle has been
washed in an automatic car wash, this may
be due to wax or other residue. Cleant he
windscreen with washer fluid after an auto-
matic car wash.
! Intermittent wiping with rain sensor: due
to optical influences and the windscreen
becoming dirty in dry weather conditions,
the windscreen wipers may be activated
inadvertently. This could damage the wind-
screen wiper blades or scratch the wind-
screen.
For this reason, you should always switch
off the windscreen wipers in dry weather. Combination switch
1
$ Windscreen wipers off
2 Ä Intermittent wipe, low (rain sensor
set to low sensitivity)
3 Å Intermittent wipe, high (rain sensor
set to high sensitivity) Windscreen wipers
135Lights and windscreen wipers Z

4
° Continuous wipe, slow
5 ¯ Continuous wipe, fast
B í Single wipe/ îTo wipe the
windscree nusing washer fluid
X Turn the key to position 1or 2in the ignition
lock.
X Turn the combination switch to the corre-
sponding position.
In the ÄorÅ position, the appropriate
wiping frequency is set automatically accord-
ing to the intensity of the rain. In the Å
position, the rain sensor is more sensitive
than in the Äposition, causing the wind-
screen wipers to wipe more frequently. Replacing the wiper blades
Important safety notes G
WARNING
The wiper arms could start moving and cause
an injury if you leave the windscreen wipers
switched on.
Remove the key from the ignition lock before
replacing the wiper blades.
! Never open the bonnet if a windscreen
wiper arm has been folded away from the
windscreen.
Never fold a windscreen wiper arm without
a wiper blade back onto the windscreen.
Hold the windscreen wiper arm firmly when
you change the wiper blade.Ify ou release
the windscreen wiper arm without a wiper
blade and it falls onto the windscreen, the
windscreen may be damaged by the force
of the impact.
Mercedes-Benz recommends that you have
the wiper blades changed at aqualified
specialist workshop.
! To avoid damaging the windscree nwiper
blades, make sure that you touch only the
wiper arm of the windscreen wiper. Replacing the wiper blades Removing the wiper blades
X
Remove the key from the ignition lock or
tur nthe key to position 0(KEYLESS-GO).
X Fold the wiper arm away from the wind-
screen until it engages. X
Firmly press release knob :and pull the
wiper blade upwards from the wiper arm in
the direction of the arrow.
Fitting the wiper blades
X Position the new wiper blade in the retainer
on the wiper arm and slide it into place in
the opposite direction to the arrow.
The wiper blade audibly engages.
X Make sure that wiper blade is seated cor-
rectly.
X Fold the wiper arm back onto the wind-
screen. Problems with the windscreen wipers
The windscreen wipers are obstructed X
For safety reasons, you should remove the
key from the ignition lock.
or
X Switch off the engine using the Start/Stop
button and open the driver's door.
X Remove the cause of the obstruction.
X Switch the windscreen wipers back on. 136
Windscreen wipersLights and windscreen wipers

Display messages Possible causes/consequences and
M Solutions
Telephone No
service Your vehicle is outside the network provider's transmitter/
receiver range.
X
Wait until the mobile phone operational readiness symbol
appears in the multifunction display. K
Convertible Top
Operation possible
to 40 km/h If you drive at speeds of more than 40 km/h, you canno
topen or
close the soft top.
X Fully open or close the soft top (Y page 93).K
Top lowering The soft top is not fully opened or closed. The hydraulics are dep-
ressurised.
X
Fully open or close the soft top (Y page 93).K
Open/close
top com‐
pletely The soft top is not locked.
If you drive at speeds of more than 40 km/
h,you canno topen or
close the soft top.
X Pull over and stop the vehicle safely as soon as possible, paying
attention to road and traffic conditions.
X Push or pull the soft-top switch until the soft top is fully open or
closed (Y page 93). K
Start Engine See
Owner's Manual The on-board voltage is too low.
X
Start the engine. The soft top has been opened and closed several times in a row.
The soft-top drive has been switched off automatically for safety
reasons.
You can open and close the soft top again after approximately ten
minutes.
X
Switch off the ignition and turn it back on.
X Repeat the opening or closin gprocedure (Y page 93). ¥
Top
up washer fluid The washer fluid level in the washer fluid reservoi
rhas dropped
below the minimum.
X Top up the washe rfluid (Y page 310). Display messages
273On-board computer and displays Z

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 vehicle on a level surface.
Only check the coolant level if the vehicle
is on a level surface and the engine has
cooled down.
X Turn the key to position 2in the ignition
lock (Y page 159).
On vehicles with KEYLESS-GO, press the
Start/Stop button twice (Y page 159).
X Check the coolant temperature display in
the instrument cluster.
The coolant temperature must be below
70 †.
X Turn the key to position 0(Y page 159) in
the ignition lock.
X Slowly tur ncap : half a turn anti-clock-
wise to allow excess pressure to escape.
X Turn cap :further anti-clockwise and
remove it.
If the coolant is at the level of marker bar
= in the fille rneck when cold, there is
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 376).
Topping up the windscreen washer sys-
tem/headlampc leaning system G
WARNING
Windscreen washer fluid/antifreeze is highly
flammable. Avoid spilling windscreen washer
fluid/antifreeze on hot engine components as
it can ignite and 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 :onto the filler neck
until it engages.
The washer fluid reservoir is used for both the
windscreen washer syste mand the headlamp
cleaning system.
Further informatio nonwindscreen washer
fluid/antifreeze (Y page 377).310
Engine compartmentMaintenance and care

H
Environmental note
Dispose of service products in an environ-
mentally-responsible manner.
Service products include the following:
R fuels (e.g .petrol, diesel)
R lubricants (e.g. engine oil, transmission oil)
R coolant
R brake fluid
R windscreen washer fluid
R climate control system refrigerant
Components and service products must be
matched. Mercedes-Benz recommends that
you use products tested and approved by
Mercedes-Benz. They are listed in this
Mercedes-BenzO wner's Manual in the appro-
priate section.
You can identify service products approved
by Mercedes-Ben zby the following inscrip-
tions on the container:
R MB-Freigabe (e.g. MB-Freigabe 229.51)
R MB Approval (e.g. MB Approval 229.51)
Other designations or recommendations indi-
cate a level of quality or a specification in
accordance with an MB Sheet Number (e.g.
MB 229.5). The yhave no tnecessarily been
approved by Mercedes-Benz.
Further information can be obtained from any
Mercedes-Benz Service Centre or on the
Internet at http://bevo.mercedes-benz.com. Fuel
Important safety notes G
WARNING
Fuel is highly flammable. Fire, naked flames
and smoking are therefore prohibited when
handling fuels.
Switch off the engine and the auxiliary heating
before refuelling. G
WARNING
Avoid contact with fuels. It is hazardous to your health if your skin
comes into direct contact with fuels or you
breathe in fuel vapours.
Tank capacity Model Total capa-
city All models
66.0 l
Model Of which
reserve fuel All models
Approx-
imately 8.0 l Petrol (EN 228, E DIN 51626-1)
Fuel grade
!
Do no tuse diesel to refuel vehicles with a
petrol engine. Even asmall quantity of die-
sel will damage the fuel injection system.
! Only refuel using unleaded petrol with at
least 95 RON/85 MON that conforms to
European standard EN 228 or E DIN
51626-1 or an equivalent specification.
Fuel with this specification may contain up
to 10 % ethanol.
! Do not use the following:
R E85 (petrol with 85 % ethanol)
R E100 (100 %ethanol)
R M15 (petrol with 15 % methanol)
R M85 (petrol with 85 % methanol)
R M100 (100 % methanol)
R Petrol with metallic additives
R Diesel
Do not mix these fuels with petrol, and do
not use any additives. This can otherwise
lead to engine damage. This does not
include cleaning additives for the removal
and prevention of residue build-up. Only
cleaning additives recommended by
Mercedes-Benzs hould be added to petrol,372
Service products and capacitiesTechnical data

If antifreeze comes into contact with hot
engine parts, it may ignite and you could burn
yourself. Do not spill any antifreeze on hot
engine parts.
! Only add coolant that has been premixed
with the desired antifreeze protection. You
could otherwise damage the engine.
Further information on coolants can be
found in the Mercedes-Benz Specifications
for Service Products, MB Specifications for
Service Products 310.1, e.g. on the Inter-
net at http://bevo.mercedes-benz.com.
Or contact a qualified specialist workshop.
! Always use a suitable coolant mixture,
even in countries where high temperatures
prevail.
Otherwise, the engine cooling system is not
sufficiently protected from corrosion and
overheating.
! The engine cooling system is filled with
coolant, which must be renewed after
15 years or after 250,000 kilometres at the
latest.
The coolant is a mixture of water and anti-
freeze/corrosion inhibitor. It performs the
following tasks:
R anti-corrosion protection
R antifreeze protection
R raising the boiling point
If antifreeze/corrosion inhibitor is present in
the correct concentration, the boiling point of
the coolant during operation will be around
130 †.
The antifreeze/corrosion inhibitor concentra-
tion in the engine cooling system should:
R be at least 50 %. This will protect the engine
cooling system against freezing down to
around -37 †.
R not exceed 55 % (antifreeze protection
down to -45 †). Hea twill otherwise not be
dissipated as effectively.
If the vehicle has lost coolant, top it up with
equal amounts of water and antifreeze/cor- rosio
ninhibitor. Mercedes-Benz recom-
mends an antifreeze/corrosion inhibito rcon-
centrate in accordance with MB Specifica-
tions for Service Products 310.1.
The coolant is checked at every maintenance
interval at a qualified specialist workshop.
i When the vehicle is first delivered, it is fil-
led with a coolant mixture that ensures
adequate antifreeze and corrosion protec-
tion. Windscreen and headlam
pcleaning
system
Important safety notes G
WARNING
Windscreen washer fluid/antifreeze is highly
flammable. Avoid spilling windscreen washer
fluid/antifreeze on hot engine components as
it can ignite and burn. Severe burns could be
the result.
! Only use washer fluid that is suitable for
plastic lamp lenses, e.g. MB SummerFit or
MB WinterFit. Unsuitable washer fluid
could damage the plastic lense softhe
headlamps.
! Do not use distilled or de-ionised water in
the washer fluid reservoir. Otherwise, the
level sensor may be damaged.
! Only the washer fluids SummerFit and
WinterFit can be mixed. Otherwise, the
spraying nozzles could become blocked.
At temperatures above freezing:
X Fill the washer fluid reservoir with a mixture
of water and washer fluid, e.g. MB Sum-
merFit.
Mix 1 part MB SummerFit to 100 parts water. Service products and capacities
377Technical data Z