key MERCEDES-BENZ E-CLASS CABRIOLET 2015 Owners Manual

Do not use a rapid charging device to start the vehicle. If your vehicle's battery is discharged, the
engine can be jump-started from another vehicle or from a second battery using jump leads.
Observe the following points:
R The battery is not accessible in all vehicles. If the other vehicle's battery is not accessible, jump-
start the vehicle using a second battery or a jump-starting device.
R Vehicles with a petrol engine: only jump-start the vehicle when the engine and exhaust system
are cold.
R Jump-starting may only be performed using batteries with a nominal voltage of 12 V.
R Only use jump leads that have a sufficient 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
a few minutes before attempting to start. This charges the empty battery a little.
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 which can move when the engine is running,
such as the V-belt pulley or the fan.
X Firmly depress the parking brake.
X Manual transmission: depress the clutch pedal fully and shift to neutral.
X Automatic transmission: shift the transmission to position P.
X Make sure the ignition is switched off. All indicator lamps in the instrument cluster must be off.
When using the key, turn the key to position 0in the ignition lock and remove it (Y page 139).
X Switch off all electrical consumers, e.g. rear window heating, lighting etc.
X Open the bonnet. Position number
Bidentifies the charged battery of the other vehicle or an equivalent jump-starting
device. 314
Jump-startingBreakdown assistance

R
Observe the brake lamps of the towing
vehicle while driving. Always maintain a dis-
tance a distance so that the tow rope does not sag.
R Do not use steel cables or chains to tow
your vehicle. You could otherwise damage
the vehicle.
! Do not use the towing eye for recovery, this
could damage the vehicle. If in doubt, recover
the vehicle with a crane.
! Pull away smoothly when towing away or
tow-starting a vehicle. 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.
! You may tow the vehicle for a maximum of
50km. A towing 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 vehicle.
Observe the legal requirements for the relevant
countries when towing and tow-starting.
It is better to have the vehicle transported than
to have it towed.
If the vehicle has suffered transmission damage, have it transported on a transporter or trailer.
When towing away a vehicle with an automatic
transmission, the transmission must be in posi-
tion N.
The battery must be connected and charged.
Otherwise, you:
R cannot turn the key to position 2in the igni-
tion lock
R cannot shift the transmission to position Non
vehicles with automatic transmission
In the event of damage to the electrical sys-
tem
If the battery is defective, the automatic trans-
mission will be locked in position P. To shift the
automatic transmission to position N, you must
provide power to the vehicle's on-board electri- cal system in the same way as when jump-start-
ing (Y page 313). Have the vehicle transported on a transporter or
trailer.
Deactivate the automatic locking feature beforetowing the vehicle (Y page 82). You could oth-
erwise be locked out when pushing or towing
the vehicle.
Deactivate tow-away protection before the vehi- cle is towed away (Y page 72). Fitting/removing the towing eye
Fitting the towing eye G
WARNING
The exhaust tail pipe may be extremely hot.
There is a risk of burning when removing the
rear cover.
Do not touch the exhaust tail pipe. Use
extreme caution when removing the rear
cover. The mountings for the removable towing eyes
are located in the bumpers. They are at the rear
and at the front, under covers :.
X Remove the towing eye from the vehicle tool
kit (Y page 305).
X Press the mark on cover :inwards in the
direction of the arrow. 316
Towing away and tow-startingBreakdown assistance

X
Remove cover :from the opening.
X Screw in the towing eye clockwise as far as it
will go and tighten it.
Vehicles with a trailer tow hitch do not have a
bracket at the back for the screw-in towing eye.
Connect the towbar to the trailer tow hitch
(Y page 209).
Removing the towing eye X
Loosen the towing eye and unscrew it.
X Position cover :on top of the bumper and
press it in at the bottom until it engages.
X Place the towing eye in the vehicle tool kit. 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 315).
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 manual transmission:
depress the clutch pedal fully and engage
neutral.
or X Vehicles with automatic transmission:
shift the transmission to position N.
X Release the brake pedal.
X Release the parking brake.
In order to signal a change of direction when
towing the vehicle with the hazard warning
lamps switched on, use the combination switch as usual. In this case, only the turn signals for
the desired direction flash. When you reset the
combination switch, the hazard warning lamps
start flashing again. Towing the vehicle away with the rear
axle raised
! Vehicles with automatic transmission must
not be towed with the rear axle raised. The
car/trailer combination may otherwise
swerve or even overturn.
! The ignition must be switched off if you are
towing the vehicle with the rear axle raised. Intervention by ESP
®
could otherwise dam-
age the brake system.
X Switch on the hazard warning lamps
(Y page 116).
X Move the front wheels to the straight-ahead
position.
X Turn the key in the ignition lock to position 0
and remove the key from the ignition lock.
X When leaving the vehicle, take the key with
you.
When towing your vehicle away with the rear
axle raised, it is important that you observe the
safety instructions (Y page 315). Transporting the vehicle
Vehicles with automatic transmission !
When the vehicle is loaded for transport, the
front and rear axles must be stationary and on
the same transportation vehicle. Positioning
over the connection point of the transport
vehicle is not permitted. The drive train may
otherwise be damaged.
All vehicles !
You may only secure the vehicle by the
wheels, not by parts of the vehicle such as
axle or steering components. Otherwise, the
vehicle could be damaged.
The towing eyes or trailer tow hitch can be used to pull the vehicle onto a trailer or transporter if
you wish to transport it. Towing away and tow-starting
317Breakdown assistance Z

X
Vehicles with manual transmission:
depress the clutch pedal fully and engage
neutral.
X Vehicles with automatic transmission:
turn the key to position
2in the ignition lock.
X Shift the automatic transmission to position
N.
As soon as the vehicle is loaded: X Prevent the vehicle from rolling away by
applying the parking brake.
X Vehicles with manual transmission:
depress the clutch pedal fully and engage first
or reverse gear.
X Vehicles with automatic transmission:
shift the automatic transmission to position
P.
X Turn the key to position 0in the ignition lock
and remove it.
X Secure the vehicle. Tow-starting (emergency engine
starting)
! Vehicles with automatic transmission must
not be tow-started. The transmission may
otherwise be damaged.
i You can find information on "Jump-starting"
under (Y page 313).
Before tow-starting, the following conditions
must be fulfilled:
R the battery is connected
R the engine has cooled down
R the exhaust system has cooled down
When tow-starting, it is important that you
observe the safety notes (Y page 315) and the
legal requirements in each respective country.
X Switch on the hazard warning lamps
(Y page 116).
X Fit the towing eye (Y page 316).
X Secure the rigid towing bar or the towing
rope.
X Depress the brake pedal and keep it
depressed.
X Turn the key to position 2in the ignition lock.
X Depress the clutch pedal fully, engage second
gear and continue to keep the clutch pedal
fully depressed.
X Release the brake pedal. X
Tow-start the vehicle.
X Release the clutch pedal slowly, do not
depress the accelerator pedal while doing so.
X When the engine has been started, immedi-
ately depress the clutch pedal fully and shift
to neutral.
X Pull over at a suitable place and stop the vehi-
cle safely, paying attention to road and traffic
conditions.
X Depress the parking brake.
X Remove the rigid towing bar or towing rope.
X Remove the towing eye (Y page 317).
X Switch off the hazard warning lamps. Electrical fuses
Important safety notes
G
WARNING
If you manipulate, bridge or replace a faulty
fuse with a fuse of a higher amperage, the
electric cables could be overloaded. This may result in a fire. There is a risk of an accident
and injury.
Always replace faulty fuses with specified new fuses of the correct amperage.
Blown fuses must be replaced with 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.
The fuse allocation chart is located in the vehicle tool kit in the stowage compartment under the
boot floor (Y page 305).
If the newly inserted fuse also blows, have the
cause traced and rectified at a qualified special- ist workshop, e.g. a Mercedes-Benz Service
Centre.
! Only use fuses that have been approved for
Mercedes-Benz vehicles and which have the
correct fuse rating for the system concerned.
Otherwise, components or systems could be
damaged.
! 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 seep-
ing in or dirt could otherwise impair the oper- ation of the fuses. 318
Electrical fusesBreakdown assistance

The fuses in your vehicle disconnect faulty cir-
cuits. If a fuse blows, all the components on the
circuit and their functions will fail. Before replacing a fuse
Observe the important safety notes
(Y page 318).
X Switch off the engine.
X Switch off all electrical consumers.
X Safeguard the vehicle against rolling away
(Y page 157).
X Remove the key from the ignition lock.
or, on vehicles with KEYLESS‑GO:
X Open the driver's door.
The on-board electronics now have status 0.
This is the same as the key having been
removed.
X Remove the Start/Stop button from the igni-
tion lock (Y page 139).
All indicator lamps in the instrument cluster
must be off.
The fuses are located in various fuse boxes:
R fuse box on the driver's side of the dashboard
R fuse box in the engine compartment on the
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 Dashboard fuse box
Pay attention to the important safety notes
(Y page 318).
! Do not use a pointed object such as a screw-
driver to open the cover in the dashboard. You
could damage the dashboard or the cover.
! 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 seep-
ing in or dirt could otherwise impair the oper- ation of the fuses. X
To open: pull out cover :slightly at the bot-
tom in the direction of arrow =.
X Pull cover :outwards in the direction of
arrow ;and remove it.
X To close: clip in cover :on the front of the
dashboard.
X Fold cover :inwards until it engages. Fuse box in the engine compartment
Observe the important safety notes
(Y page 318). G
WARNING
When the bonnet is open, and the windscreen wipers are set in motion, you can be injured by
the wiper linkage. There is a risk of injury.
Always switch off the windscreen wipers and
the ignition before opening the bonnet. X
Make sure that the windscreen wipers are
switched off.
X Open the bonnet (Y page 290).
X Remove any existing moisture from the fuse
box using a dry cloth.
X To open: take lines ;out of the guides. Electrical fuses
319Breakdown assistance Z

the
Serv.
Serv. menu of the multifunction display.
Information on the message display can be
found in the "Restarting the tyre pressure loss
warning system" section (Y page 326).
Important safety notes The tyre pressure warning system does not warn
you of an incorrectly set tyre pressure. Observe the notes on the recommended tyre pressure
(Y page 324).
The tyre pressure loss warning does not replace the need to regularly check the tyre pressures.
An even loss of pressure on several tyres at the
same time cannot be detected by the tyre pres-
sure loss warning system.
The tyre pressure monitor is not able to warn
you of a sudden loss of pressure, e.g. if the tyre is penetrated by a foreign object. In the event of
a sudden loss of pressure, bring the vehicle to a halt by braking carefully. Avoid abrupt steering
manoeuvres.
The function of the tyre pressure loss warning
system is limited or delayed if:
R snow chains are fitted to your vehicle's tyres.
R road conditions are wintry.
R you are driving on sand or gravel.
R you adopt a very sporty driving style (corner-
ing at high speeds or driving with high rates of
acceleration).
R you are towing a very heavy or large trailer.
R you are driving with a heavy load (in the vehi-
cle or on the roof).
Restarting the tyre pressure loss warn-
ing system Restart the tyre pressure loss warning system if
you have:
R changed the tyre pressure
R changed the wheels or tyres
R fitted new wheels or tyres
X Before restarting, make sure that the tyre
pressures are set properly on all four tyres for the respective operating conditions. The rec-
ommended tyre pressures can be found in the
tyre pressure table on the fuel filler flap.
The tyre pressure loss warning system can
only give reliable warnings if you have set the correct tyre pressure. If an incorrect tyre pressure is set, these incorrect values will be
monitored.
X Observe the notes in the section on tyre pres-
sures (Y page 324).
X Make sure that the key is in position 2in the
ignition lock (Y page 139).
X Press the =or; button on the steering
wheel to select the Serv.
Serv. menu.
X Press the 9or: button on the steering
wheel to select the Tyre pressure
Tyre pressure menu.
X Press the abutton.
The Run Flat Indicator active Run Flat Indicator active
Restart with OK
Restart with OK message appears in the
multifunction display.
If you wish to confirm the restart: X Press the abutton.
The Tyre
Tyre press.
press. now
nowOK?
OK?message appears
in the multifunction display.
X Press the 9or: button to select Yes
Yes .
X Press the abutton.
The Run Flat Indicator restarted
Run Flat Indicator restarted mes-
sage appears in the multifunction display.
After a teach-in period, the tyre pressure loss warning system will monitor the set tyre pres-
sures of all four tyres.
If you wish to cancel the restart: X Press the %button.
or X When the Tyre press. now OK?
Tyre press. now OK? message
appears, press the 9or: button to
select Cancel
Cancel .
X Press the abutton.
The tyre pressure values stored at the last
restart will continue to be monitored. Tyre pressure monitor
General notes If a tyre pressure monitor system is fitted, the
vehicle's wheels have sensors fitted that moni-
tor the tyre pressures in all four tyres. The tyre
pressure monitor warns you if the pressure
drops in one or more of the tyres. The tyre pres- sure monitor only functions if the corresponding
sensors are fitted to all wheels.
Information on tyre pressures is shown in the
multifunction display. After a few minutes of
driving, the current tyre pressure of each tyre is 326
Tyre pressureWheels and tyres

shown in the
Service
Servicemenu of the multifunction
display; see illustration (example). For further information on displaying this mes-
sage, refer to the "Checking the tyre pressure
electronically" section (Y page 327).
Important safety notes It is the driver's responsibility to set the tyre
pressure to the recommended cold tyre pres-
sure suitable for the operating situation
(Y page 324). Note that the correct tyre pres-
sure for the current operating situation must
first be taught-in to the tyre pressure monitor. If
there is a substantial loss of pressure, the warn- ing threshold for the warning message is aligned
to the reference values taught-in. Restart the
tyre pressure monitor after adjusting to the cold tyre pressure (Y page 328). The current pres-
sures are saved as new reference values. This
will ensure that a warning message will only
appear if the tyre pressure drops significantly.
The tyre pressure monitor does not warn you of
an incorrectly set tyre pressure. Observe the
notes on the recommended tyre pressure
(Y page 324).
The tyre pressure monitor is not able to warn
you of a sudden loss of pressure, e.g. if the tyre is penetrated by a foreign object. In the event of
a sudden loss of pressure, bring the vehicle to a halt by braking carefully. Avoid abrupt steering
manoeuvres.
The tyre pressure monitor has a yellow warning
lamp in the instrument cluster for indicating a
pressure loss or malfunction. Depending on how
the warning lamp flashes or lights up, a tyre
pressure that is too low or a malfunction in the
tyre pressure monitor is indicated:
R if the warning lamp is lit continuously, the tyre
pressure on one or more tyres is significantly
too low. The tyre pressure monitor is not mal- functioning.
R if the warning lamp flashes for around a
minute and then remains lit constantly, the
tyre pressure monitor is malfunctioning. In addition to the warning lamp, a message
appears in the multifunction display. Observe
the information on display messages
(Y page 246).
It may take up to ten minutes for a malfunction
of the tyre pressure monitor to be indicated. A
malfunction will be indicated by the tyre pres-
sure warning lamp flashing for approximately
one minute and then remaining lit. When the
fault has been rectified, the tyre pressure warn- ing lamp goes out after you have driven for a few
minutes.
The tyre pressure values indicated by the on-
board computer may differ from those meas-
ured at a filling station using a pressure gauge.
The tyre pressures shown by the on-board com- puter refer to those measured at sea level. At
high altitudes, the tyre pressure values indica-
ted by a pressure gauge are higher than those
shown by the on-board computer. In this case,
do not reduce the tyre pressures.
The operation of the tyre pressure monitor can
be affected by interference from radio transmit-
ting equipment (e.g. radio headphones, two-way radios) that may be being operated in or near the vehicle.
Checking the tyre pressure electroni-
cally X
Make sure that the key is in position 2in the
ignition lock (Y page 139).
X Press the =or; button on the steering
wheel to select the Service
Service menu.
X Press the 9or: button to select
Tyre pressure Tyre pressure.
X Press the abutton.
The current tyre pressure for each wheel will
be displayed in the multifunction display.
If the vehicle has been parked for over
20 minutes, the Tyre pressures will be Tyre pressures will be
displayed
displayed after
after a
afew
few minutes
minutes of
ofdriv‐
driv‐
ing
ing message appears.
After a teach-in period, the tyre pressure moni-
tor automatically detects new wheels or new
sensors. As long as a clear allocation of the tyre pressure values to the individual wheels is not
possible, the Tyre Tyrepressure
pressure monitor
monitoractive
active
display message is shown instead of the tyre
pressure display. The tyre pressures are already being monitored.
If an emergency spare wheel is fitted, for a few
minutes the system may continue to show the Tyre pressure
327Wheels and tyres Z

tyre pressure of the wheel that has been
removed. If this occurs, note that the value dis-
played for the position where the spare wheel is fitted is not the same as the current tyre pres-
sure of the emergency spare wheel.
Warning messages of the tyre pressure monitor If the tyre pressure monitor detects a pressure
loss in one or more tyres, a warning message is
shown in the multifunction display. The yellow
tyre pressure warning lamp then lights up.
R If the Please correct tyre pressure
Please correct tyre pressure
message appears in the multifunction display,
the tyre pressure in at least one tyre is too
low. The tyre pressure must be corrected
when the opportunity arises.
R If the Check
Check tyre(s)
tyre(s) message appears in the
multifunction display, the tyre pressure in at
least one tyre has dropped significantly. The
tyres must be checked.
R If the Warning tyre defect Warning tyre defect message
appears in the multifunction display, the tyre
pressure in at least one tyre has dropped sud- denly. The tyres must be checked.
Observe the instructions and safety notes in the display messages in the "Tyres" section
(Y page 246).
If the wheel positions on the vehicle are inter-
changed, the tyre pressures may be displayed
for the wrong positions for a short time. After a few minutes of driving, this is rectified and the
tyre pressures are displayed for the correct
positions.
Restarting the tyre pressure monitor When you restart the tyre pressure monitor, all
existing warning messages are deleted and the
warning lamps go out. The monitor uses the cur-
rently set tyre pressures as the reference values
for monitoring. In most cases, the tyre pressure monitor will automatically detect the new refer-
ence values after you have changed the tyre
pressure. However, you can also set reference
values manually as described here. The tyre
pressure monitor then monitors the new tyre
pressure values.
X Use the table on the inside of the fuel filler flap
to ensure that the tyre pressure is set cor-
rectly in all four tyres for the current operating
conditions. Also observe the notes in the section on tyre
pressures (Y page 324).
X Make sure that the key is in position 2in the
ignition lock.
X Press the =or; button on the steering
wheel to select the Service
Service menu.
X Press the 9or: button to select
Tyre pressure Tyre pressure.
X Press the abutton.
The multifunction display shows the current
tyre pressure for the individual tyres or the
Tyre pressures will be displayed Tyre pressures will be displayed
after a few minutes of driving after a few minutes of driving mes-
sage.
X Press the :button.
The Use
Use current
current pressures
pressures as
asnew
new ref‐
ref‐
erence
erence values
valuesmessage appears in the mul-
tifunction display.
If you wish to confirm the restart: X Press the abutton.
The Tyre
Tyre press.
press. monitor
monitor restarted
restarted mes-
sage appears in the multifunction display.
After you have driven for a few minutes, the
system checks whether the current tyre pres-
sures are within the specified range. The new tyre pressures are then accepted as refer-
ence values and monitored.
If you wish to cancel the restart:
X Press the %button.
The tyre pressure values stored at the last
restart will continue to be monitored. Changing a wheel
Flat tyre
You can find information on what to do in the
event of a flat tyre in the "Breakdown assis-
tance" section (Y page 306). Information on
driving with MOExtended tyres in the event of a flat tyre can be found under "Breakdown assis-
tance" (Y page 306).
Vehicles with an emergency spare wheel: in
the event of a flat tyre, the emergency spare
wheel is fitted according to the description
under "Fitting a wheel" (Y page 329).328
Changing a
wheelWheels and tyres

Interchanging the wheels
G
WARNING
Interchanging the front and rear wheels may
severely impair the driving characteristics if
the wheels or tyres have different dimensions. The wheel brakes or suspension components may also be damaged. There is a risk of acci-
dent.
Interchange front and rear wheels only if the
wheels and tyres are of the same dimensions.
! On vehicles fitted with a tyre pressure mon-
itor, electronic components are located in the wheel.
Tyre-fitting tools should not be applied in thearea of the valve, as this could damage the
electronic components.
Only have tyres changed at a qualified spe-
cialist workshop.
Interchanging the front and rear wheels of dif-
fering dimensions can render the general oper-
ating permit invalid.
Observe the instructions and safety notes in the "Fitting a wheel" section (Y page 329).
The wear patterns on the front and rear tyres
differ depending on the operating conditions.
Interchange the wheels before a clear wear pat-
tern has formed on the tyres. Front tyres typi-
cally wear more on the shoulders and the rear
tyres in the centre.
On vehicles that have the same size front and
rear wheels, you can interchange the wheels
every 5,000 to 10,000 km depending on the
degree of tyre wear. Ensure that the direction of
rotation is maintained.
Clean the contact surfaces of the wheel and the
brake disc thoroughly every time a wheel is
interchanged. Check the tyre pressure and, if
necessary, restart the tyre pressure loss warn-
ing system (Y page 326) or the tyre pressure
monitor (Y page 328). Direction of rotation
Tyres with a specified direction of rotation have additional benefits, e.g. if there is a risk of aqua- planing. These advantages can only be gained if
the tyres are fitted corresponding to the direc-
tion of rotation. An arrow on the sidewall of the tyre indicates its
correct direction of rotation. Storing wheels
Store wheels that are not being used in a cool,
dry and preferably dark place. Protect the tyres
against oil, grease, petrol and diesel. Fitting a wheel
Preparing the vehicle X
Stop the vehicle on solid, non-slippery and
level ground.
X Apply the parking brake.
X Move the front wheels to the straight-ahead
position.
X Vehicles with manual transmission:
depress the clutch pedal fully and engage first
or reverse gear.
X Vehicles with automatic transmission:
shift the automatic transmission to position
P.
X Switch off the engine.
X Remove the key from the ignition lock.
or, on vehicles with KEYLESS‑GO:
X Open the driver's door.
The on-board electronics now have status 0.
This is the same as the key having been
removed.
X Remove the Start/Stop button from the igni-
tion lock (Y page 139).
X If included in the vehicle equipment, remove
the tyre-change tool kit from the vehicle
(Y page 305).
X Safeguard the vehicle against rolling away.
i Apart from some country-specific variants,
vehicles are not equipped with tyre-changing
tools. Some tools for changing a wheel are
specific to the vehicle. For more information
on which tools are required to perform a
wheel change on your vehicle, consult a quali- fied specialist workshop.
Necessary tyre-changing tools may include,
for example:
R jack
R wheel chock Changing a wheel
329Wheels and tyres Z