lock MERCEDES-BENZ C-CLASS CABRIOLET 2016 Owners Manual

Warning triangle
Removing the warning triangle X
Open the boot lid.
X Push warning triangle holder :on both sides
in the direction of the arrow and open it.
X Push retaining lug upwards at centre of warn-
ing triangle ;and remove warning trian-
gle ;.
Setting up the warning triangle X
Fold legs =out to the side.
X Fold side reflectors ;upwards to form a tri-
angle and lock them at the top using press
stud :. First-aid kit
The first-aid kit
:is in the boot in the left-hand
stowage net.
X Open the boot lid.
X Remove the first-aid kit :.
Check the expiry date on the first-aid kit at least
once a year. Replace the contents if necessary, and replace any missing items. Fire extinguisher
The fire extinguisher is located underneath the
front of the driver's seat.
X Pull tab :upwards.
X Remove fire extinguisher ;.
Have the fire extinguisher refilled after each use and checked every one or two years. It may oth-
erwise fail in an emergency.
Observe the legal requirements for each indi-
vidual country. 324
Where will I find...?Breakdown assistance

X
Open the boot lid.
X Swing the boot floor upwards (Y page 300).
X Remove towing eye :.Flat tyre
Preparing the vehicle
Your vehicle may be equipped with: R MOExtended tyres (tyres with run-flat char-
acteristics) (Y page 326)
Vehicle preparation is not necessary on vehi- cles with MOExtended tyres.
R a TIREFIT kit (Y page 325)
R an emergency spare wheel (certain countries
only) (Y page 356)
Vehicles with MOExtended tyres are not equip-
ped with a TIREFIT kit at the factory. It is there-
fore recommended that you additionally equip
your vehicle with a TIREFIT kit if you fit tyres that do not feature run-flat characteristics, e.g. win-
ter tyres. A TIREFIT kit can be obtained from a
qualified specialist workshop.
Vehicles with a Mercedes-Benz emergency call
system that are not equipped with a TIREFIT kit:
in the event of a flat tyre, contact the Customer
Assistance Centre for the Mercedes-Benz emer- gency call system (Y page 304).
Information on changing and fitting a wheel
(Y page 350).
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 Secure the vehicle against rolling
(Y page 159).
X If possible, bring the front wheels into the
straight-ahead position.
X Switch off the engine.
X Remove the key from the ignition lock.
or, on vehicles with KEYLESS-GO start function
or KEYLESS ‑GO:
X Open the driver's door.
The vehicle 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 133).
X Make sure that the passengers are not endan-
gered as they get out of the vehicle. Make
sure that no one is near the danger area while a wheel is being changed. Anyone 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 traffic
conditions when doing so.
X Close the driver's door.
X Place the warning triangle a suitable distance
away (Y page 324). Observe legal require-
ments. Vehicles with MOExtended tyres
(tyres with run-flat characteristics)
General notes With MOExtended tyres (tyres with run-flat char-
acteristics), you can continue to drive your vehi-
cle even if there is a total loss of air in one or
more tyres. The affected tyre must not show any clearly visible damage.
You can recognise MOExtended tyres by the
"MOExtended" marking that appears on the tyre
sidewall. You will find this marking next to the
tyre size designation, the load-bearing capacity
and the speed index.
MOExtended tyres may be used only in conjunc- tion with an activated tyre pressure loss warning system or tyre pressure monitor.
If a tyre pressure loss warning message
appears on the multifunction display:
R observe the instructions in the display mes-
sages (Y page 265)
R check the tyre for damage
R if driving on, observe the following notes
The driving distance possible in run-flat mode is
approximately 80 km when the vehicle is parti-
ally laden and approximately 30 km when the
vehicle is fully laden.
In addition to the vehicle load, the driving dis-
tance possible in run-flat mode depends on the:
R vehicle speed
R road condition
R outside temperature
The driving distance possible in run-flat mode
may be reduced by extreme driving conditions/ manoeuvres, or it can be increased through a
moderate style of driving.
The driving distance possible in run-flat mode iscounted from the moment the tyre pressure loss
warning appears on the multifunction display. 326
Flat tyreBreakdown assistance

Therefore, place the filler hose in the plastic
bag which contained the TIREFIT kit.
H
Environmental note
Have the used tyre sealant bottle disposed of professionally, e.g. at a qualified specialist
workshop.
! Do not operate the tyre inflation compres-
sor for longer than ten minutes at a time with-
out a break. It may otherwise overheat.
The tyre inflation compressor can be oper-
ated again once it has cooled down.
Comply with the manufacturer's safety instruc-
tions on the sticker on the tyre inflation com-
pressor.
Using the TIREFIT kit X
Do not remove any foreign objects that have
penetrated the tyre, e.g. screws or nails.
X Remove the tyre sealant bottle, the accom-
panying TIREFIT sticker and the tyre inflation
compressor from the stowage space under
the boot floor (Y page 325). X
Affix part :of the TIREFIT sticker to the
instrument cluster within the driver's field of
vision.
X Affix part ;of the TIREFIT sticker near the
valve on the wheel with the defective tyre. X
Remove filler hose Band connector =from
bottom section of tyre inflation compressor
housing ;.
X Slide yellow filler hose connector into mount-
ing on yellow cap Aof tyre sealant bottle :
until connector engages.
X With sealing rings in front, slide yellow cap A
of tyre sealant bottle :into the holder of tyre
inflation compressor ;. The cap must
engage in both hooks. X
Remove cap from valve Con faulty tyre.
X Screw filler hose Donto valve C.
X Insert connector =into cigarette lighter
socket (Y page 303) or into another 12 V
socket in your vehicle (Y page 303).
X Turn the key to position 1in the ignition lock
(Y page 133).
X Press on/off switch ?on tyre inflation com-
pressor to ONposition.
The tyre inflation compressor is switched on.
The tyre is inflated.
First, tyre sealant is pumped into the tyre. The pressure may briefly rise to approximately
500 kPa (5 bar/73 psi). 328
Flat tyreBreakdown assistance

X
Correct the tyre pressure if it is still at least
130 kPa (1.3 bar/19 psi). See the tyre pres-
sure table on the fuel filler flap for values.
X To increase the tyre pressure: switch on
the tyre inflation compressor. X
To reduce the tyre pressure: depress pres-
sure release button :next to pressure
gauge ;.
X When the tyre pressure is correct, unscrew
the filler hose from the valve of the sealed
tyre.
Tyre sealant may leak out when the filler hose
is unscrewed.
X Screw the valve cap onto the tyre valve of the
sealed tyre. X
To remove the tyre sealant bottle from the
tyre inflation compressor, press together the
locking tabs on the yellow cap.
X Pull the tyre sealant bottle out of the tyre
inflation compressor.
The filler hose stays on the tyre sealant bottle.
X Drive to the nearest qualified specialist work-
shop and have the tyre changed there. X
Have the tyre sealant bottle and the filler hose
replaced as soon as possible at a qualified
specialist workshop.
X Have the tyre sealant bottle replaced every
four years at a qualified specialist workshop. Battery (vehicle)
12 V battery – important safety notes
Work on the battery, e.g. removing or fitting,
requires specialist knowledge and the use of
special tools. Therefore, always have work on
the battery carried out at a qualified specialist
workshop. G
WARNING
Work carried out incorrectly on the battery
can lead, for example, to a short circuit and
thus damage the vehicle electronics. This can lead to function restrictions applying to
safety-relevant systems, e.g the lighting sys-
tem, the ABS (anti-lock braking system) or the
ESP ®
(Electronic Stability Program). The oper-
ating safety of your vehicle may be restricted.
You could lose control of the vehicle, for
example:
R when braking
R in the event of abrupt steering manoeuvres
and/or when the vehicle's speed is not
adapted to the road conditions
There is a risk of an accident.
In the event of a short circuit or a similar inci- dent, contact a qualified specialist workshop
immediately. Do not drive any further. Always have work on the battery carried out at a
qualified specialist workshop.
Further information about ABS (Y page 67) and
ESP ®
(Y page 72).
All vehicles except vehicles with a lithium-
ion battery: G
WARNING
Electrostatic build-up can lead to the creation of sparks, which could ignite the highly explo-
sive gases of a battery. There is a risk of an
explosion. 330
Battery (vehicle)Breakdown assistance

Before handling the battery, touch the vehicle
body to remove any existing electrostatic
build-up.
The highly flammable gas mixture is created
while the battery is charging and when jump-
starting.
Always make sure that neither you nor the bat-
tery is electrostatically charged. Electrostatic
charge is created, for example:
R by wearing synthetic-fibre clothing
R by friction between clothing and the seat
R if you pull or push the battery across carpet or
other synthetic materials
R if you rub the battery with a cloth G
WARNING
During the charging process, a battery produ- ces hydrogen gas. If a short circuit occurs or
sparks are created, the hydrogen gas can
ignite. There is a risk of an explosion.
R Make sure that the positive terminal of a
connected battery does not come into con- tact with vehicle parts.
R Never place metal objects or tools on a bat-
tery.
R It is important that you observe the descri-
bed order of the battery terminals when
connecting and disconnecting a battery.
R When jump-starting, make sure that the
battery poles with identical polarity are
connected.
R It is particularly important to observe the
described order when connecting and dis-
connecting the jump leads.
R Never connect or disconnect the battery
terminals while the engine is running. G
WARNING
Battery acid is caustic. There is a risk of injury. Avoid contact with the skin, eyes or clothing.
Do not breathe in any battery gases. Do not
lean over the battery. Keep the batteries out
of the reach of children. Immediately rinse off
battery acid thoroughly with plenty of clean
water and seek medical attention at once. All vehicles: H
Environmental note Batteries contain pollutants.
It is illegal to dispose of them
with the household rubbish.
They must be collected sep-
arately and disposed of in an environmentally responsible
recycling system. Dispose of batteries in an
environmentally responsible
manner. Take discharged
batteries to a qualified spe-
cialist workshop or to a col-
lection point for used batter-
ies.
! Have the battery checked regularly at a
qualified specialist workshop.
Observe the service intervals in the Service
Booklet or contact a qualified specialist work- shop for more information.
! Always have work on the batteries carried
out at a qualified specialist workshop. Should
it, in exceptional circumstances, be abso-
lutely necessary to disconnect the 12-volt
battery yourself, please observe the follow-
ing:
R secure the vehicle to prevent it from rolling
away.
R switch the ignition off.
R first, disconnect the negative terminal, fol-
lowed by the positive terminal.
Vehicles with automatic transmission: the
transmission is locked in position Pafter dis-
connecting the battery.
After the work has been completed, firmly
reinstall the battery and the cover of the pos- itive terminal.
Comply with safety notes and take protective
measures when handling batteries. Risk of explosion.
Fire, naked flames and smoking are
prohibited when handling the bat-
tery. Avoid creating sparks. Battery (vehicle)
331Breakdown assistance Z

G
WARNING
A discharged battery can freeze at temperatures below freezing point. When jump-starting the
vehicle or charging the battery, gases can escape from the battery. There is a risk of an explosion.
Allow the frozen battery to thaw out before charging it or jump-starting.
If the warning and indicator lamps do not light up on the instrument cluster when temperatures are low, it is probably because the discharged battery has frozen. In this case, you may neither jump-
start the vehicle nor charge the battery. The service life of a battery that has been thawed may be
reduced. The starting characteristics may be impaired, especially at low temperatures. Have the
thawed battery checked at a qualified specialist workshop.
All vehicles:
! Vehicles with a petrol engine:
avoid repeated and lengthy starting attempts. Otherwise, the
non-combusted fuel may damage the catalytic converter.
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 donor battery or a jump-starting device.
R Vehicles with a petrol engine: jump-start the vehicle only when the engine and exhaust system
are cold.
R All vehicles except vehicles with a lithium-ion battery: do not start the engine if the battery
is frozen. Let the battery thaw first.
R Jump-starting may be performed only using batteries with a nominal voltage of 12 V.
R Use only 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 that can move when the engine is running,
such as the V-belt pulley or the fan.
X Secure the vehicle by applying the electric parking brake.
X Automatic transmission: shift the transmission to position P.
X Manual transmission: depress the clutch pedal fully and engage neutral.
X Make sure that the ignition is switched off . All indicator lamps on the instrument cluster must be
off. When using the key, turn the key to position 0in the ignition lock and remove it (Y page 133).
X Switch off all electrical consumers, e.g. rear window heating, lighting etc.
X Open the bonnet. 334
Jump-startingBreakdown assistance

Towing away and tow-starting
Important safety notes
G
WARNING
Safety relevant functions are restricted or no
longer available if:
R the engine is not running
R the brake system or power steering is mal-
functioning
R there is a malfunction in the voltage supply
or the vehicle's electrical system
When your vehicle is towed away or towed
started, you may require considerably more
effort to steer and brake. There is a risk of an
accident.
In such cases use a rigid towing bar. Before
being towed away or tow started, make sure
the steering moves freely. G
WARNING
If the steering wheel lock is engaged, the vehi- cle can no longer be steered. There is a risk of
an accident.
Always switch on the ignition when towing
with a tow rope or a towing bar. G
WARNING
When towing or tow-starting another vehicle
and its weight is greater than the permissible gross weight of your vehicle, the:
R towing eye may be torn off
R car/trailer combination may swerve or
even overturn
There is a risk of an accident.
When towing or tow-starting another vehicle,
its weight should not be greater than the per- missible gross weight of your vehicle.
Details on the permissible gross vehicle weight
of your vehicle can be found on the vehicle iden-
tification plate (Y page 359).
! When Active Brake Assist, Distance Pilot
DISTRONIC or the HOLD function is activated, the vehicle brakes automatically in certain
situations. To avoid damage to the vehicle, deactivate
these systems in the following or similar sit-
uations:
R when towing away
R in a car wash
! Make sure that the electric parking brake is
released. If the electric parking brake is faulty, visit a qualified specialist workshop.
! Only secure the tow cable or tow bar to the
towing eyes or, if available, to the trailer tow
hitch. You could otherwise damage the vehi-
cle.
! Observe the following points when towing
with a tow rope:
R Secure the tow rope on the same side on
both vehicles.
R Make sure that the tow rope is not longer
than legally permitted. Mark the tow rope in
the middle, e.g. with a white cloth
(30 x 30 cm). This will make other road
users aware that a vehicle is being towed.
R Only secure the tow cable to the towing
eyes or, if available, to the trailer tow hitch.
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 trailer tow hitch for recovery
or towing. Do not use the towing eye for
recovery. This could damage the vehicle. If in
doubt, have the vehicle recovered using 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.
! Shift the automatic transmission to
Nand
do not open the driver's or front passenger's
door during towing. The automatic transmis-
sion may otherwise shift to position P, which
could damage the transmission.
! 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. 336
Towing away and tow-startingBreakdown assistance

Observe the legal requirements in each individ-
ual country when towing.
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.
Vehicles with automatic transmission: the
automatic transmission must be in position N
when the vehicle is being towed. If the auto-
matic transmission cannot be shifted to position
N, have the vehicle transported on a transporter
or trailer.
The battery must be connected and charged.
Otherwise, you:
R cannot turn the key to position 2in the igni-
tion lock
R cannot release the electric parking brake
R cannot shift the transmission to position Non
vehicles with automatic transmission
Deactivate the automatic locking feature before
towing the vehicle (Y page 88). 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 79). 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 brackets for the screw-in towing eye are
located in the bumpers. They are located at the
rear and at the front, under covers :.
X Remove the towing eye from the vehicle tool
kit (Y page 325).
X Press the mark on cover :inwards and
remove.
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 rear for the screw-in towing eye.
Connect the towbar to the trailer tow hitch
(Y page 214).
Removing the towing eye X
Loosen the towing eye and unscrew it.
X Attach cover :to the bumper and press until
it engages. Towing the vehicle away with the rear
axle raised
When towing your vehicle with the rear axle
raised, observe the important safety notes
(Y page 336).
Only vehicles without 4MATIC can be towed
with the rear axle raised.
! Vehicles with 4MATIC must not be towed
with the front or rear axle raised; otherwise,
the transmission may be damaged. Towing away and tow-starting
337Breakdown assistance Z

Vehicles with 4MATIC may either be towed with
both axles on the ground or be loaded and trans- ported.
! 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 If necessary, turn the key to position 0in the
ignition lock and remove the key from the
ignition lock.
X When leaving the vehicle, take the key with
you. Towing the vehicle with all wheels on
the ground
Vehicles with automatic transmission: 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 N
when the vehicle is being towed, you must
observe the following points:
X Make sure that the vehicle is stationary.
X Turn the key to position 2in the ignition lock.
X Depress the brake pedal and keep it
depressed.
X Shift the automatic transmission to position
N.
Vehicles with manual transmission: X Turn the key to position 2in the ignition lock.
X Depress the brake pedal and keep it
depressed.
X Depress the clutch pedal fully and shift to
neutral.
All vehicles:
X Leave the key in position 2in the ignition lock.
X Release the brake pedal. X
Release the electric parking brake.
X Switch on the hazard warning lamps
(Y page 116).
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. Transporting the vehicle
4MATIC vehicles/vehicles with auto-
matic 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 eye or trailer tow hitch can be used
to pull the vehicle onto a trailer or transporter if you wish to transport it.
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. 338
Towing away and tow-startingBreakdown assistance

As soon as the vehicle is loaded:
X Secure the vehicle against rolling away by
applying the electric parking brake.
X Vehicles with manual transmission: fully
depress the clutch pedal 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. Notes for 4MATIC vehicles
! Vehicles with 4MATIC must not be towed
with the front or rear axle raised; otherwise,
the transmission may be damaged.
Vehicles with 4MATIC may either be towed away
with both axles on the ground or be loaded up
and transported.
If the vehicle has transmission damage or dam- age to the front or rear axle, have it transportedon a transporter or trailer.
In the event of damage to the electrical sys-
tem: if the battery is defective, the automatic
transmission will be locked in position P. To shift
the automatic transmission to position N, you
must provide power to the vehicle's electrical
system in the same way as when jump-starting
(Y page 333).
Have the vehicle transported on a transporter or
trailer. Tow-starting (emergency engine
starting)
! Do not tow-start vehicles with automatic
transmission. You could otherwise damage
the automatic transmission.
i You can find information on "Jump-starting"
under (Y page 333).
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 336) 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 337).
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 2nd
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 Use the electric parking brake to secure the
vehicle and prevent it from rolling away.
X Remove the rigid towing bar or towing rope.
X Remove the towing eye (Y page 337).
X Switch off the hazard warning lamps. 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 newfuses 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 on the fuse box in the boot (Y page 341). Fuses
339Breakdown assistance Z