RIf TIREFIT is swallowed, immediately rinse
your mouth out thoroughly with water and
drink plenty of water.
RDo not induce vomiting. Consult a doctor
immediately.
RDo not inhale TIREFIT fumes.
iIf TIREFIT leaks out, allow it to dry. It can
then be removed like a layer of film.
If you get TIREFIT on your clothing, have it
cleaned as soon as possible with
perchloroethylene.
GWarning!
Comply with the manufacturer's safety
instructions on the sticker on the electric air
pump.
Your vehicle is provided with one of two
different electric air pumps:
RVersion 1: the hose with the pressure
gauge and the cable are behind a flap.
RVersion 2: the pressure gauge is in the
electric air pump.
TIREFIT kit version 1
XOpen flap ;.XPull connector A with the cable and hose
B out of the housing.
XScrew hose B onto flange C of TIREFIT
sealant filler bottle :.
XPlace TIREFIT sealant filler bottle : head
downwards into recess = of the electric
air pump.
XRemove the cap from valve E on the faulty
tire.
XMake sure pressure release screw F on
pressure gauge G is fully closed.
XScrew filler hose D onto valve E.XInsert connector A into the socket in the
footwell of the 2nd row of seats
(Y page 265).
! None of the other sockets or cigarette
lighters are designed for operating the
electric air pump.
XTurn the key to position 1(Y page 149) in
the ignition lock.
XPress on/off switch ? on the electric air
pump to I.
The electric air pump is switched on. The
tire is inflated.
iFirst, TIREFIT is pumped into the tire. The
pressure can briefly rise to approximately
500 kPa (5 bar/73 psi).
Do not switch off the electric pump
during this phase.
298Flat tireRoadside Assistance
BA 251 USA, CA Edition A 2011; 1; 3, en-USd2sboikeVersion: 3.0.3.52010-04-16T14:31:55+02:00 - Seite 298
XLet the electric pump run for five minutes.
The tire should then have attained a
pressure of at least 180 kPa (1.8 bar/
26 psi).
GWarning
The air hose can become hot during inflation.
Please exercise appropriate caution.
! Do not operate the electric air pump for
longer than eight minutes at a time without
a break. It may otherwise overheat.
The air pump can be operated again once
it has cooled down.
If after five minutes a pressure of 180 kPa
(1.8 bar/26 psi) has been achieved, see
(Y page 300).
If after five minutes a pressure of 180 kPa
(1.8 bar/26 psi) has not been achieved, see
(Y page 300).
TIREFIT kit version 2
XPull connector ? with the cable and hose
A out of the housing.
XScrew hose A onto flange B of TIREFIT
sealant filler bottle :.
XPlace TIREFIT sealant filler bottle : head
downwards into recess ; of the electric
air pump.
XRemove the cap from valve C on the faulty
tire.
XScrew filler hose D onto valve C.XInsert connector ? into the socket in the
footwell of the 2nd row of seats
(Y page 265).
! None of the other sockets or cigarette
lighters are designed for operating the
electric air pump.
XTurn the key to position 1 in the ignition
lock.
XPress on/off switch = on the electric air
pump to I.
The electric air pump is switched on. The
tire is inflated.
iFirst, TIREFIT is pumped into the tire. The
pressure can briefly rise to approximately
500 kPa (5 bar/73 psi).
Do not switch off the electric pump
during this phase.
GWarning
The air hose can become hot during inflation.
Please exercise appropriate caution.
! Do not operate the electric air pump for
longer than eight minutes at a time without
a break. It may otherwise overheat.
The air pump can be operated again once
it has cooled down.
If after five minutes a pressure of 180 kPa
(1.8 bar/26 psi) has been achieved, see
(Y page 300).
Flat tire299Roadside AssistanceBA 251 USA, CA Edition A 2011; 1; 3, en-USd2sboikeVersion: 3.0.3.52010-04-16T14:31:55+02:00 - Seite 299Z
Version 2
XVersion 1: open flap :.XVersion 1: pull connector = and the air
hose with pressure gauge ? out of the
housing.XVersion 2: pull connector = and the air
hose out of the housing.XVersion 1: make sure that the pressure
release screw on pressure gauge ? is
closed.XRemove the cap from the valve on the
collapsible spare wheel.XScrew union nut A on the air hose onto the
valve.XMake sure on/off switch ; of the electric
air pump is set to 0.XInsert connector 3 into the socket in the
footwell of the 2nd row of seats
( Y page 265).
!
None of the other sockets or cigarette
lighters are designed for operating the
electric air pump.
XMake sure that the SmartKey is in position
1 (Y page 149) in the ignition lock.XPress on/off switch ; on the electric air
pump to I.
The electric air pump is switched on. The
tire is inflated.GWarning
The air hose and the union nut can become
hot during inflation. Exercise proper caution
to avoid burning yourself when using the
equipment.
! Do not operate the electric air pump for
longer than eight minutes at a time without
a break. It may otherwise overheat.
The air pump can be operated again once
it has cooled down.XPump the tire to the specified tire pressure.
The specified tire pressure is printed on the
yellow label of the emergency spare wheel.XWhen the specified tire pressure has been
reached, press on/off switch 2 on the
electric air pump to 0.
The electric air pump is switched off.XTurn the SmartKey to position 0 in the
ignition lock.XVersion 1: if the tire pressure is higher than
the specified pressure, open the pressure
release screw on pressure gauge 4 until
the correct tire pressure has been reached.XVersion 2: if the tire pressure is higher than
the specified pressure, press pressure
release button 6 until the correct tire
pressure has been reached.XUnscrew union nut A on the air hose from
the valve.XScrew the valve cap onto the collapsible
spare wheel valve again.XVersion 1 : stow plug = and the air hose
behind flap :.XVersion 2 : stow plug = and the air hose
in the lower section of the pump housing.XStow the electric air pump in the
designated place in the vehicle.
Lowering the vehicle
GWarning
Pump up the collapsible spare wheel before
lowering the vehicle. You could otherwise
damage the wheel rim.
306Flat tireRoadside Assistance
BA 251 USA, CA Edition A 2011; 1; 3, en-USd2sboikeVersion: 3.0.3.52010-04-16T14:31:55+02:00 - Seite 306
Immediately rinse acid
splashes off with clean
water. Consult a doctor if
necessary.Wear eye protection.Keep children away.Observe this Operator's
Manual.HEnvironmental note
Do not dispose of batteries in the household
rubbish. Dispose of defective batteries in an
environmentally responsible manner. Take
them to an authorized Mercedes-Benz Center
or to a special collection point for old
batteries.
GWarning
Failure to follow these instructions can result
in severe injury or death.
Never lean over batteries while connecting.
You might get injured.
Battery fluid contains sulfuric acid. Do not
allow this fluid to come in contact with eyes,
skin or clothing. In case it does, immediately
flush affected area with water and seek
medical help if necessary.
A battery will also produce hydrogen gas,
which is flammable and explosive. Keep
flames or sparks away from battery, avoid
improper connection of jumper cables,
smoking etc.
GWarning
Do not place any metal objects on the battery
as this could result in a short circuit.
Use leak-proof batteries only to avoid the risk
of acid burns in the event of an accident.
Take care that you do not become statically
charged, e.g. by wearing synthetic clothing or
rubbing against textiles. For this reason, you
also should not pull or push the battery over
carpets or other synthetic materials.
Never touch the battery first. First, touch the
outside body of the vehicle in order to release
any possible electrostatic charges.
Do not rub the battery with rags or cloths. The
battery could explode if touched due to
electrostatic charge or due to spark
formation.
! Switch off the engine and remove the
SmartKey before disconnecting the
terminal clamps from the battery. On
vehicles with KEYLESS-GO, make sure that
the ignition is switched off. Check that all
the indicator lamps in the instrument
cluster are off. You may otherwise destroy
electronic components, such as the
alternator.
! Like other batteries, the vehicle battery
may discharge over time if you do not use
the vehicle. In this case, have the battery
disconnected at a qualified specialist
workshop, e.g. an authorized Mercedes-
Benz Center. You can also charge the
battery with a charger recommended by
Mercedes-Benz. Contact an authorized
Mercedes-Benz Center for further
information.
The battery, breather hose and cover of the
positive terminal clamp must be installed
securely during operation.
i Remove the SmartKey if you park the
vehicle and do not require any electrical
consumers. The vehicle will then use very
little energy, thus conserving battery
power.
Mercedes-Benz recommends that you do not
carry out work on batteries yourself, e.g.
removing, charging or replacing. Always have
this work performed at a qualified specialist
workshop, e.g. an authorized Mercedes-Benz
Center.Battery309Roadside AssistanceBA 251 USA, CA Edition A 2011; 1; 3, en-USd2sboikeVersion: 3.0.3.52010-04-16T14:31:55+02:00 - Seite 309Z
Towing away
Important safety guidelines
GWarning
With the engine not running, there is no power
assistance for the brake and steering
systems. In this case, it is important to keep
in mind that a considerably higher degree of
effort is necessary to brake and steer the
vehicle. Adapt your driving accordingly.
If possible, have the vehicle transported by a
suitable vehicle with both axles raised,
instead of having it towed.
If it is not possible to load the vehicle due to
external conditions, tow the vehicle with both
axles on the ground the shortest distance
possible to a place where it is possible to load
the vehicle.
! When towing, pull away slowly and
smoothly. If the tractive power is too high,
the vehicles could be damaged.
! Do not use the towing eye for recovery,
as this could damage the vehicle. If in
doubt, recover the vehicle with a crane.
! You must not start the vehicle by tow-
starting. This could otherwise damage the
automatic transmission.
! Do not tow with sling-type equipment.
This could damage the vehicle.
! Only secure the tow rope or tow bar at the
towing eyes, or the trailer tow hitch, if
available. You could otherwise damage the
vehicle.
! When towing vehicles with KEYLESS-GO,
use the key instead of the Start/Stop
button. Otherwise, the automatic
transmission may shift to position P when
the driver's or front-passenger door are
opened, which could lead to damage to the
transmission.
! The vehicle must not be towed with raised
front or rear axles. This could otherwise
damage the transmission.
The battery must be connected and charged
when towing. Otherwise, you cannot switch
on the ignition and select N with the
automatic transmission.
i Switch the automatic door lock off before
towing ( Y page 208). Otherwise, you could
lock yourself out of the vehicle when
pushing or towing the vehicle.
Installing the towing eye
Vehicles with a trailer tow hitch: if possible,
fasten the towing mechanism to the trailer
tow hitch ( Y page 193).
XRemove the towing eye and the lug wrench
(if supplied) from the vehicle tool kit
( Y page 294).GWarning
In order to avoid possible serious burns or
injury, use extreme caution when removing
the rear cover, because the rear exhaust pipe
is extremely hot.
The mountings for the removable towing eyes
are located in the bumpers. They are at the
front and at the rear, behind the covers.
XPress the mark on cover : inwards, in the
direction of the arrow.Towing away313Roadside AssistanceBA 251 USA, CA Edition A 2011; 1; 3, en-USd2sboikeVersion: 3.0.3.52010-04-16T14:31:55+02:00 - Seite 313Z
XTake cover : off the opening.XScrew in the towing eye clockwise to the
stop.XInsert the lug wrench handle into the
towing eye and tighten it.
or
XIf your vehicle is not equipped with a lug
wrench, use a suitable object to tighten the
towing eye.
Removing the towing eye
XRemove the lug wrench (if supplied) from
the vehicle tool kit ( Y page 294).XInsert the lug wrench handle into the
towing eye and turn the towing eye
counter-clockwise.
or
XIf your vehicle is not equipped with a lug
wrench, use a suitable object to loosen the
towing eye.XUnscrew the towing eye.XAttach cover : to the bumper and press
until it engages.XReturn the towing eye and the lug wrench
to the vehicle tool kit.
Towing the vehicle
GWarning!
If circumstances require towing the vehicle
with all wheels on the ground, always tow with
a tow bar if:
R the engine will not run
R there is a malfunction in the brake system
R there is a malfunction in the power supply
or in the vehicle's electrical system
This is necessary to adequately control the
towed vehicle.
Prior to towing the vehicle with all wheels on
the ground, make sure the SmartKey is in
starter switch position 2.
GWarning
With the engine not running, there is no power
assistance for the brake and steering
systems. In this case, it is important to keep
in mind that a considerably higher degree of
effort is necessary to brake and steer the
vehicle. Adapt your driving accordingly.
The automatic transmission switches
automatically to position P if the driver's door
or front-passenger door are opened or the key
is removed from the ignition lock. In order to
ensure that the automatic transmission stays
in position N when towing, do the following:
XMake sure that the vehicle is stationary and
the ignition is switched off.XTurn the key to position 2 in the ignition
lock.
On vehicles with KEYLESS-GO, make sure
you use the key and not the Start/Stop
button ( Y page 149).XDepress and hold down the brake pedal.XShift the automatic transmission to
position N.XRelease the brake pedal.XRelease the parking brake.XActivate the hazard warning signal
( Y page 119).XLeave the ignition switched on.
!
You may only tow the vehicle a maximum
distance of 30 miles (50 km). A towing
speed of 30 mph (50 km/h) must not be
exceeded.
For towing distances over 30 miles
(50 km), the vehicle must loaded onto a
transporter.
i When towing with the hazard warning
lamp switched on, use the combination
switch as normal to show changes to the
direction of the vehicle. In this case, only
the indicator lamps for the direction of
travel flash. After resetting the
combination switch, the hazard warning
lamp starts flashing again.
314Towing awayRoadside Assistance
BA 251 USA, CA Edition A 2011; 1; 3, en-USd2sboikeVersion: 3.0.3.52010-04-16T14:31:55+02:00 - Seite 314
Recovering a vehicle that has become
stuck
Take great care when recovering a vehicle
whose drive wheels have become embedded
in loose earth or mud, particularly if the
vehicle is laden.
When recovering the vehicle, do not use jerky
movements and do not pull it at an angle. The
chassis could otherwise be damaged.
Never attempt to recover a vehicle with a
trailer attached.
Pull out the vehicle backwards, if possible
using the tracks it made when it became
stuck.
Transporting the vehicle
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.
XTurn the SmartKey to position 2
( Y page 149) in the ignition lock.XShift the automatic transmission to
position N.
As soon as the vehicle has been loaded:
XPrevent the vehicle from rolling away by
applying the parking brake.XShift the automatic transmission to
position P.XSwitch off the ignition.XSecure 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.
Otherwise, the vehicle could be damaged.
Fuses
Important safety guidelines
The fuses in your vehicle serve to close down
faulty circuits. If a fuse blows, all the
components on the circuit and their functions
will fail.GWarning
Only use fuses approved by Mercedes-Benz
with the specified amperage for the system in
question and do not attempt to repair or
bridge a blown fuse. Using other than
approved fuses or using repaired or bridged
fuses may cause an overload leading to a fire,
and/or cause damage to electrical
components and/or systems. Have the cause
determined and remedied by an authorized
Mercedes-Benz Center.
Blown fuses must be replaced with fuses of
the same rating, which you can recognize by
the color and value. The fuse ratings are listed
in the fuse allocation chart. An authorized
Mercedes-Benz Center will be happy to
advise you.
i If a fuse has blown, visit a breakdown
service or an authorized Mercedes-Benz
Center.
If the newly inserted fuse also blows, have the
cause traced and rectified at a qualified
specialist workshop, e.g. an authorized
Mercedes-Benz Center.
! 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.
Before changing a fuse
XPark the vehicle and apply the parking
brake.XSwitch off all electrical consumers.XRemove the key from the ignition lock.Fuses315Roadside AssistanceBA 251 USA, CA Edition A 2011; 1; 3, en-USd2sboikeVersion: 3.0.3.52010-04-16T14:31:55+02:00 - Seite 315Z
XMake sure that the key is in position 2
( Y page 149) in the ignition lock.XPress and hold the V or U button on
the multifunction steering wheel until the
standard display appears in the
multifunction display ( Y page 202).XPress the * or & button until the
Run Flat Indicator Active Menu: R-
Button message appears in the
multifunction display.XPress the reset button ( Y page 28) on the
instrument cluster.
The Restart Run Flat Indicator?
Yes Cancel message appears in the
multifunction display.
If you wish to confirm the restart:
XPress the W button.
The Run Flat Indicator Restarted
message appears in the multifunction
display.
After a teach-in period, the tire pressure
loss warning system will monitor the set
tire pressures of all four tires.
If you wish to cancel the restart:
XPress the X button.
or
XWait until the Restart Run Flat
Indicator? Yes Cancel message
disappears.
The tire pressure values stored at the last
restart will continue to be monitored.
Tire pressure monitoring system
(USA only)
Important safety information
If a tire pressure monitor is installed, the
vehicle's wheels have sensors installed that
monitor the tire pressures in all four tires. The
tire pressure monitor warns you when the
pressure drops in one or more of the tires. The
tire pressure monitor only functions if the
correct wheel electronics units are installed
in all wheels.
The tire 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 tire pressure that is too low or
a malfunction in the tire pressure monitor is
displayed:
R if the warning lamp is lit continuously, the
tire pressure on one or more tires is
significantly too low. The tire pressure
monitor is not malfunctioning.
R if the warning lamp flashes for 60 seconds
and then remains lit constantly, the tire
pressure monitor is malfunctioning.GWarning!
Each tire, including the spare (if provided),
should be checked at least once a month
when cold and inflated to the inflation
pressure recommended by the vehicle
manufacturer on the tire and loading
information table on the driver's door B-pillar
or the tire inflation pressure table on the
inside of the fuel filler flap. If your vehicle has
tires of a different size than the size indicated
on the tire and loading information table or
the tire inflation pressure table, you should
determine the proper tire inflation pressure
for those tires.
As an added safety feature, your vehicle has
been equipped with a tire pressure monitor
(TPMS). An indicator lamp lights up if one or
more of your tires are significantly
underinflated. Accordingly, when the low tire
pressure indicator lamp lights up, you should
stop and check your tires as soon as possible,
and inflate them to the proper pressure.
Driving on a significantly underinflated tire
causes the tire to overheat and can lead to
tire failure.
Underinflation also reduces fuel efficiency
and tire tread life and may affect the vehicle's
handling and stopping ability. Please note that
the TPMS is not a substitute for proper tire
maintenance and it is the driver's
Tire pressures327Tires and wheelsBA 251 USA, CA Edition A 2011; 1; 3, en-USd2sboikeVersion: 3.0.3.52010-04-16T14:31:55+02:00 - Seite 327Z