The battery and the cover of the positive
terminal clamp must be installed securely
during operation.
Comply with safety precautions and take
protective measures when handling
batteries. Risk of explosion.
Fire, open flames and smokin
gare
prohibited when handling the
battery. Avoid creatin gsparks. Battery acid is caustic. Avoid
contact with skin, eyes or clothing.
Wear suitable protective clothing,
especially gloves, apron and
faceguard.
Rinse any acid spills immediately
with clear water. Contact a
physician if necessary.
Wear eye protection.
Keep children away.
Observe this Operator's Manual.
For safety reasons, Mercedes-Benz
recommends that you only use batteries
which have been tested and approved for
your vehicle by Mercedes-Benz.T hese
batteries provide increased impact
protection to prevent vehicle occupants from
suffering acid burns should the battery be
damaged in the event of an accident.
In order for the battery to achieve the
maximum possible service life, it must always
be sufficiently charged.
The vehicle battery, like other batteries, can
discharge over time if you do not use the
vehicle. In this case, have the battery disconnected at
aqualified specialist
workshop. You can also charge the battery
with acharger recommended by Mercedes-
Benz.C ontactaqualified specialist workshop
for further information.
Have the battery condition of charge checked
more frequently if you use the vehicle mainly
for short trips or if you leave it standin gidle
for alengthy period. Consult aqualified
specialist workshop if you wish to leave your
vehicle parked for along period of time.
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.
i If the power supply has been interrupted,
e.g. if you reconnect the battery, you will
have to:
R set the clock.I nformation on setting the
clock can be found in the separate
operating instructions.
On vehicles with COMAND and a
navigation system, the clock is set
automatically.
R reset the function for folding the exterior
mirrors in/out automatically, by folding
the mirrors out once (Y page 110). Charging the battery
G
WARNING
During charging and jump-starting, explosive
gases can escape from the battery. There is a
risk of an explosion.
Particularly avoid fire, open flames, creating
sparks and smoking. Ensure there is sufficient
ventilation while charging and jump-starting.
Do not lean over abattery. G
WARNING
Battery acid is caustic. There is arisk of injury.
Avoid contact with the skin, eyes or clothing.
Do not inhale any battery gases. Do not lean 324
Battery (vehicle)Breakdown assistance
Jump-starting
For the jump-starting procedure, use only the jump-starting connection point, consisting of a
positive terminal and an earth point, in the engine compartment. G
WARNING
Battery acid is caustic. There is arisk of injury.
Avoid contact with the skin, eyes or clothing. Do not inhale any battery gases. Do not lean over
the battery. Keep children away from batteries. Wash battery acid immediately with water and
seek medical attention. G
WARNING
During charging and jump-starting, explosive gases can escape from the battery. There is arisk
of an explosion.
Particularly avoid fire, open flames, creating sparks and smoking. Ensure there is sufficient
ventilation while charging and jump-starting. Do not lean over abattery. G
WARNING
During the charging process, abattery produces hydrogen gas. If ashort circuit occurs or sparks
are created, the hydrogen gas can ignite. There is arisk of an explosion.
R Make sure that the positive terminal of aconnected battery does not come into contact with
vehicle parts.
R Never place metal objects or tools on abattery.
R It is important that you observe the described order of the battery terminals when connecting
and disconnecting abattery.
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 disconnecting
the jumper cables.
R Never connect or disconnectt he battery terminals while the engine is running.G
WARNING
Ad ischarged battery can freeze at temperatures below freezin gpoint .When jump-starting the
vehicle or charging the battery, gases can escape from the battery. There is arisk of an explosion.
Allow the frozen battery to thaw out before charging it or jump-starting.
! Avoid repeated and lengthy startinga ttempts. Otherwise, the catalytic converter could be
damaged by the non-combusted fuel.
Do not start the vehicle using arapid charging device. If your vehicle's battery is discharged,
the engine can be jump-started from another vehicle or from asecond battery using jumper
cables. 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 asecond battery or ajump-starting device.
R You may only jump-start th evehicl ewhen th eenginea nd exhaust system are cold.
R Do no tstart th eengineift hebattery is frozen .Let th ebattery thaw first. 326
Jump-startingBreakdown assistance
R
Only jump-start from batteries with a12Vvoltage rating.
R Only use jumper cables which have asufficient 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 afew minutes before attempting to start. This charges the battery slightly.
R Make sure that the two vehicles do not touch.
Make sure that:
R the jumper cables are not damaged.
R when the jumper cables are connected to the battery, uninsulated sections of the terminal
clamp do not come into contact with other metal sections.
R the jumper cables cannot come into contact with parts which can move when the engine
is running, such as the V-belt pulley or the fan.
X Apply the parking brake firmly.
X Shift the transmission to position P.
X Switch off all electrical consumers (e.g. radio, blower, etc.).
X Open the hood.
Position number 0025identifies the charged battery of the other vehicle or an equivalent jump-
starting device. X
Slide cover 001Aof positive terminal 0010in the direction of the arrow.
X Connect positive terminal 0010on your vehicle to positive terminal 0024of donor battery 0025
using the jumper cable, always begin with positive terminal 0010on your own vehicle first.
X Start the engine of the donor vehicle and run it at idling speed.
X Connect negative terminal 0021of donor battery 0025to ground point 001Eof your vehicle using
the jumper cable, connecting the jumper cable to battery of other vehicle 0025first.
X Start the engine.
X Before disconnecting the jumper cables, let the engine run for several minutes. Jump-starting
327Breakdown assistance Z
X
Take cover 0010off the opening.
X Screw in and tighten the towing eye
clockwise to the stop.
Removing the towing eye X
Unscrew and remove the towing eye.
X Position the top of cover 001Ain the bumper
and press it in at the bottom until it
engages.
X Attach cover 0010to the bumper and press
until it engages.
X Place the towing eye in the vehicle tool kit. Towing the vehicle with the rear axle
raised
! The ignition must be switched off if you
are towing the vehicle with the rear axle
raised. Intervention by ESP ®
could
otherwise damage the brake system.
Only possible for vehicles without
4MATIC.
X Switc hont he hazard warning lamps
(Y page 120).
X Turn the SmartKey to position 0in the
ignition lock and remove the SmartKey
from the ignition lock.
X When leaving the vehicle, take the
SmartKey or the KEYLESS-GO key with you.
When towing your vehicle with the rear axle
raised, it is importan tthat you observe the
safety instructions (Y page 328).Towing
avehicle with both axles on
th eg round
It is importan tthat you observe the safety
instructions when towing away your vehicle
(Y page 328). The automatic transmission automatically
shifts to position
Pwhen you open the driver's
or front-passenger door or when you remove
the SmartKey from the ignition lock. In order
to ensure that the automatic transmission
stays in position Nwhen towing the vehicle,
you must observe the following points:
X Make sure that the vehicle is stationary and
the SmartKey in the ignition lock is in
position 0.
X Turn the SmartKey to position 2in the
ignition lock.
On vehicles with KEYLESS-GO, use the
SmartKey instead of the Start/Stop button
(Y page 147).
X Depress and hold the brake pedal.
X Shift the automatic transmission to
position N.
X Release the brake pedal.
X Release the parking brake.
X Switch on the hazard warning lamps
(Y page 120).
X Leave the SmartKey in position 2in the
ignition lock.
i When towing with the hazard warning
lamps switched on, use the combination
switch as usualtos ignalachange of
direction. 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. Transporting 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.
The towing eye can be used to pull the vehicle
onto atrailer or transporter for transporting
purposes. 330
Towing and tow-startingBreakdown assistance
X
Turn the SmartKey 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 Shift the automatic transmission to
position P.
X Turn the SmartKey to position 0in the
ignition lock and remove the SmartKey
from the ignition lock.
X Secure the vehicle. Notes on 4MATIC vehicles
! Vehicles with 4MATI Cmust not be towed
with either the frontort he rear axle raised,
as doing so will damage the transmission.
If the vehicle has transmission damage or
damage to the front or rear axle, have it
transported on atransporter or trailer.
In the event of damage to the electrical
system
If the battery is defective, the automatic
transmission will be locked in position P.To
shift the automatic transmission to position
N,y ou must provide power to the vehicle's
electrical system in the same way as when
jump-starting (Y page 326).
Have the vehicle transported on atransporter
or trailer. Tow-starting (emergency engine
starting)
! Vehicles with automatic transmission
must not be started by tow-starting. This
could otherwise damage the transmission.
You can find information on "Jump-starting"
at (Y page 326). Fuses
Important safety notes
G
WARNING
If you manipulate or bridge afaulty fuse or if
you replace it with afuse with ahigher
amperage, the electric cables could be
overloaded. This could result in afire. There
is ar isk of an accident and injury.
Always replace faulty fuses with the specified
new fuses having the correct amperage.
! Only use fuses that have been approved
for Mercedes-Ben zvehicles and which
have the correct fuse ratin gfor the system
concerned. Otherwise, componentsor
systems could be damaged.
The fuses in your vehicle serve to close down
faulty circuits. If afuse blows ,all the
component sonthecircuit and their functions
stop operating.
Blown fuse smust be replace dwith fuses of
the same rating, which you can recognize by
the color and value. The fuse ratings are listed
in the fuse allocation chart.
If an ewly inserted fuse also blows, have the
cause traced and rectified at aqualified
specialist workshop, e.g. an authorized
Mercedes-Ben zCenter. Befor
echanging afuse
X Secure the vehicle against rolling away
(Y page 167).
X Switc hoff all electrical consumers.
X Turn the SmartKey to position 0in the
ignition lock and remove it (Y page 147).
or
X On vehicles with KEYLESS-GO, make sure
the ignition is switched off (Y page 147).
All indicator lamps in the instrument cluster
must be off. Fuses
331Breakdown assistance Z
Comply wit
hall valid regulation swithr espect
to handling, storing ,and disposin gofservice
fluids.
Components and servic eproduct smust be
matched. You should therefor eonly use
products tha thave been tested and approved
by Mercedes-Benz.
Information on tested and approved products
can be obtaine datanauthorized Mercedes-
Ben zCente roront heInternet at
http://bevo.mercedes-benz.co m.
You can recognize service products approved
by Mercedes-Ben zbythefollowing
inscription on th econtaine rs:
R MB-Freigabe (e.g. MB-Freigabe 229.51)
R MB Approval (e.g. MB Approval 229.51)
Other designation sorrecommendations
indicat ealevel of qualit yoras pecification in
accordance wit hanMBSheet number (e.g.
MB 229.5). The yhave no tnecessarily been
approved by Mercedes-Benz. Fuel
Important safet ynotes G
WARNING
Fuel is highly flammable. If you handle fuel
incorrectly, there is arisk of fire and
explosion.
You must avoid fire, open flames, creating
sparks and smoking. Switc hoff the engine
and, if applicable, the auxiliary heating before
refueling. G
WARNING
Fuel is poisonous and hazardous to health.
There is arisk of injury.
You must make sure that fuel does not come
into contact with your skin ,eyes or clothing
and that it is not swallowed. Do not inhale fuel
vapors. Keep fuel away from children. If you or other
scome into contact with fuel,
observe the following:
R Wash away fuel from skin immediately
using soap and water.
R If fuel comes into contact with your eyes,
immediately rinse them thoroughly with
clean water. Seek medical assistance
without delay.
R If fuel is swallowed, seek medical
assistanc ewithout delay. Do not induce
vomiting.
R Immediately change out of clothing which
has come into contact with fuel.
Tank capacity Model Total
capacity All models
21.1USg
al
(80. 0l) Model Of which
reserve All models (except for
AMG vehicles)
Approx.
2.4 US qt (9.0 l) All models (AMG vehicles)
Approx.
3.7 US gal (14. 0l) Gasoline
Fuel grade
!
Do not use diesel to refuel vehicles with a
gasoline engine. Do not switch on the
ignition if you accidentally refuel with the
wrong fuel. Otherwise, the fuel will enter
the fuel system. Even small amounts of the
wrong fuel could result in damage to the
fuel system and the engine. Notif ya
qualified specialist worksho pand have the
fuel tank and fuel lines drained completely. 374
Service products and filling capacitiesTechnical data