X
Slide cover
C
of positive terminal
=
in the direction of the arrow.
X
Connect positive terminal
=
on your vehicle to positive terminal
?
of donor battery
D
using the
jumper cable. Always begin with positive terminal
=
on your own vehicle first.
X
Start the engine of the donor vehicle and run it at idling speed.
X
Connect negative terminal
A
of donor battery
D
to ground point
B
of your vehicle using the
jumper cable, connecting the jumper cable to donor battery
D
first.
X
Start the engine.
X
Before disconnecting the jumper cables, let the engine run for several minutes.
X
First, remove the jumper cables from ground point
B
and negative terminal
A
, then from pos-
itive clamp
=
and positive terminal
?
. Begin each time at the contacts on your own vehicle first.
X
After removing the jumper cables, close cover
C
of positive terminal
=
.
X
Replace the ground point cover. Make sure all mountings for the fasteners are positioned pre-
cisely beneath the corresponding recesses in the cover.
X
Press fasteners
:
into the mountings. Turn the fasteners by
Õ
of a turn to engage.
X
Have the battery checked at a qualified specialist workshop.
Jump-starting is not considered to be a normal operating condition.
i
Jumper cables and further information regarding jump-starting can be obtained at any qualified
specialist workshop.
Towing and tow-starting
Important safety notes
G
WARNING
Functions relevant to safety are restricted or
no longer available if:
R
the engine is not running.
R
the brake system or the power steering is
malfunctioning.
R
there is a malfunction in the voltage supply
or the vehicle's electrical system.
If your vehicle is being towed, much more
force may be necessary to steer or brake.
There is a risk of an accident.
In such cases, use a tow bar. Before towing,
make sure that the steering moves freely.
G
WARNING
When towing or tow-starting another vehicle
and its weight is greater than the permissible
gross weight of your vehicle, the:
R
the towing eye could detach itself
R
the vehicle/trailer combination could roll-
over.
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 356).
!
When COLLISION PREVENTION ASSIST
PLUS, DISTRONIC PLUS 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 the vehicle
R
in the car wash
!
Make sure that the electric parking brake is
released. If the electric parking brake is faulty,
visit a qualified specialist workshop.
!
Secure the tow rope or tow bar to the towing
eye only. Otherwise, the vehicle could
become damaged.
!
Do not use the towing eyes for recovery pur-
poses as this could damage the vehicle. If in
doubt, recover the vehicle with a crane.
Towing and tow-starting
315
Bre
akdow
n
assi
stance
Z
