X
Connect negative terminal ?of donor battery Bto earth point Aof your vehicle using the jump
lead, connecting the jump lead to donor battery Bfirst.
X Start the engine.
X Before disconnecting the jump leads, let the engines run for several minutes.
X First, remove the jump leads from earth point Aand negative terminal ?, then from positive
clamp ;and positive terminal =. Begin each time at the contacts on your own vehicle first.
X After the jump lead is removed, return cover :of positive terminal ;to the original position.
Positive terminal ;is covered up and thus insulated again.
X Have the battery checked at a qualified specialist workshop.
Jump-starting is not considered to be a normal operating condition.
i Jump-starting cables and further information regarding jump starting can be obtained at any
qualified specialist workshop. Towing away and tow-starting
Important safety notes
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 321).
! When Active Brake Assist, Distance Pilot
DISTRONIC or the HOLD function are activa-
ted, the vehicle brakes automatically in cer-
tain 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
! Only secure the tow rope or towing bar to
the towing eyes. The vehicle may otherwise
be damaged. !
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 makes other road users
aware that a vehicle is being towed.
R only secure the tow rope to the towing eye.
R observe the brake lamps of the towing vehi-
cle while driving. Always maintain a dis-
tance 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.
! When towing, pull away slowly and
smoothly. If the tractive power is too high, the
vehicles could be damaged.
! To tow vehicles with KEYLESS-GO, use the
key instead of the Start/Stop button. The
automatic transmission may otherwise
switch to position Pwhen you open the driv-
er's or front-passenger door which could
damage the transmission.
! Make sure that the electric parking brake is
released. If the electric parking brake is faulty,
visit a qualified specialist workshop.
! You may tow the vehicle for a maximum of
50km. A towing speed of 50 km/h must not
be exceeded. 298
Towing away and tow-startingBreakdown assistance
Tow-starting (emergency engine
starting)
! Do not tow-start vehicles with automatic
transmission. You could otherwise damage
the automatic transmission.
You can find information on "Jump-starting"
under (Y page 296). 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 288).
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.
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
X Switch off the engine.
X Switch off all electrical consumers.
X Make sure that the ignition is switched off
(Y page 132).
or X When using the key, turn the key to position 0
in the ignition lock and remove it
(Y page 132).
X Safeguard the vehicle against rolling away
(Y page 153).
All indicator lamps in the instrument cluster
must be off.
The fuses are located in various fuse boxes: R Fuse box in the engine compartment on the
right-hand side of the vehicle, when viewed in the direction of travel
R Dashboard fuse box
R Fuse box in the rear compartment on the
right-hand side of the vehicle, when viewed in
the direction of travel Dashboard fuse box
i Observe the "Important safety notes" sec-
tion (Y page 301).
! 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. X
Open the driver's door.
X To open: pull cover :outwards in the direc-
tion of the arrow and remove it.
X To close: clip in cover :on the front of the
dashboard.
X Fold cover :inwards until it engages. Electrical fuses
301Breakdown assistance Z
