X
Slide cover 0012of positive terminal 0001in the direction of the arrow.
X Connect positive terminal 0001on your vehicle to positive terminal 0002of donor battery 0013
using the jump lead, beginning with your ow nbattery.
X Start the engine of th edonor vehicle and run it at idling speed.
X Connect negative terminal 0015of donor battery 0013to earth point 0014of your vehicle using
the jump lead, connectingt he jump lead to donor battery 0013first.
X Start the engine.
X First, remove the jump lead from earth point 0014and negative terminal 0015, then from positive
terminal 0001and positive terminal 0002, each time disconnecting from the battery on your own
vehicle first.
X Slide cover 0012of the positive terminal in the opposite direction to the arrow.
X Have the battery checked at a qualified specialist workshop, e.g. a Mercedes-Ben zService
Centre. Towing and tow-starting
Please bear the following in mind
If the vehicle can no longer be driven because
of an acciden torbreakdown, you have the
following options:
R Transporting the vehicle
As a rule, you should have the vehicle trans-
ported.
R Towing the vehicle with the rear axle raised Only tow the vehicle with the rear axle
raised in exceptional cases.
R Towing the vehicle with a tow rope or tow
bar
Only tow the vehicle in exceptional cases.
The engine must be running when you tow
the vehicle with a tow rope or tow bar.
Observe the following notes. Towing and tow-starting
339Practical advice
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Towing the vehicle with the rear axle
raised !
The engine must be switched off (key in
ignition lock in position 0or position 1) if
the vehicle is being towed with the front
axle raised or if the parking brake is being
tested on a dynamometer. Otherwise,
intervention by ESP ®
could damage the
brake system.
Towing the vehicle with atow rope or
tow bar G
Ris
kofa ccident
If the brake system is malfunctioning, you
must use a rigid tow bar to tow the vehicle.
Before towing away, mak esure that the steer-
ing can be moved and is not locked.
If there is a malfunctio ninthe power supply
or the vehicle's electrical system, you must
not tow the vehicle. G
Risk of accident
The following can occur if the vehicle is towed:
R the engine may not start.
R the on-board electronics may fail.
R the battery voltage may drop too much.
In these cases, the rear axle will be locked.
As a result, you might lose control of the vehi-
cle, cause an accident and injure yourself and
others.
! Use the key instead of the Start/Stop
button when towing the vehicle.
Start the engine and keep it running. Turn
the key to position 2in the ignition. Set the
transmission selector lever to N.Make sure
that you then leave the key in position 2.
Chec kthe transmission position in the
instrument cluster. When towing the vehicle, proceed as follows:
X
Insert the key into the ignition lock
(Y page 203).
X Start the engine and leave the key in the
ignition.
X Move the transmission selector lever to N.
X Check the transmission position in the
instrumentc luster display (Y page 227).
X Leave the engine running during the entire
towing procedure.
Also observe the following notes:
R When towing, observe the legal require-
ments in all countries concerned.
R If the engine does not start, try jump-start-
ing it (Y page 338). Tow-starting the vehicle
is not permitted.
R If it is not possible to jump-star tthe vehicle,
have it transported to the nearest qualified
specialist workshop, e.g. aMercedes-Benz
Service Centre.
R If the transmission has been damaged,
have the vehicle transported to the nearest
qualified specialist workshop, e.g. a
Mercedes-Benz Service Centre. Observe
the display messages in the instrument
cluster.
R If you are towing the vehicle over a longer
distance, this must be done with the rear
axle raised.
! Make sure that the electric parking brake
is released. If the electric parking brake is
faulty, visit a qualified specialist workshop.
Mercedes-Benzr ecommends that you use
a Mercedes-Benz Service Centre.
! When towing, pull away slowly and
smoothly. If the tractive power is too high,
the vehicles could be damaged.
! Only secure the tow cable or towing bar
to the towing eyes. You could otherwise
damage the vehicle.
! Do not use the towing eye for recovery,
as this could damage the vehicle. If in
doubt, recover the vehicle with a crane. 340
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BA 197 ECE RE 2010/6a; 1; 2, en-GB
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