The essentials
Jump leads must comply with standard DIN
72553 (see c ab
l
e manufacturer's instruc-
tions). The wire cross section must be at least
25 mm 2
for petrol engines and at least
35 mm 2
for diesel engines. Note
● The v ehic
les must not touch each other,
otherwise electricity could flow as soon as
the positive terminals are connected.
● The discharged battery must be properly
connected t
o the on-board network. How to jump start: description
Fig. 79
Diagram of connections for vehicles
w ithout
Start Stop system Fig. 80
Diagram of connections for vehicles
with St
art Stop system Jump lead terminal connections
Swit
c
h off the ignition of both vehicles
››› .
C onnect
one end of
the red jump lead to
the positive + terminal of the vehicle
w ith the fl
at
battery A
› ›
› Fig. 79 .
Connect the other end of the red jump
lead to the positive terminal + in the
v ehic
l
e providing assistance B .
F or
vehicles without Start-Stop system:
connect one end of the black jump lead
to the negative terminal – of the vehi-
c l
e pr
oviding the current B
› ›
› Fig. 79 .
For vehicles with Start-Stop system: con-
nect one end of the black jump lead X to a suitable ground terminal, to a solid
piec
e of
met
al in the engine block, or to
the engine block itself ››› Fig. 80.
1.
2.
3.
4a.
4b. Connect the other end of the
black
jump
lead X to a solid metal component bol-
t ed t
o the en
gine block or to the engine
block itself of the vehicle with the flat
battery. Do not connect it to a point near
the battery A .
P o
s
ition the leads in such a way that
they cannot come into contact with any
moving parts in the engine compart-
ment.
Starting Start the engine of the vehicle with the
boosting battery and let it run at idling
speed.
Start the engine of the vehicle with the
flat battery and wait for 2 or 3 minutes
until the engine is running.
Removing the jump leads Before you remove the jump leads,
switch off the dipped beam headlights if
they are switched on.
Turn on the heater blower and heated
rear window in the vehicle with the flat
battery. This helps minimise voltage
peaks which are generated when the
leads are disconnected.
When the engine is running, disconnect
the leads in reverse order to the details
given above. »
5.
6.
7.
8.
9.
10.
11.
71
The essentials
Make sure the battery clamps have sufficient
met al-t
o-met
al contact with the battery termi-
nals.
If the engine fails to start after about 10 sec-
onds, switch off the starter and try again after
about 1 minute. WARNING
● Ple a
se note the safety warnings referring to
working in the engine compartment
››› page 270.
● The battery providing assistance must have
the same v
oltage as the flat battery (12V) and
approximately the same capacity (see imprint
on battery). Failure to comply could result in
an explosion.
● Never use jump leads when one of the bat-
teries
is frozen. Danger of explosion! Even af-
ter the battery has thawed, battery acid could
leak and cause chemical burns. If a battery
freezes, it should be replaced.
● Keep sparks, flames and lighted cigarettes
awa
y from batteries, danger of explosion.
Failure to comply could result in an explo-
sion.
● Observe the instructions provided by the
manufact
urer of the jump leads.
● Do not connect the negative cable from the
other vehic
le directly to the negative terminal
of the flat battery. The gas emitted from the
battery could be ignited by sparks. Danger of
explosion. ●
Never att ac
h the negative cable to fuel sys-
tem components or the brake lines in the oth-
er vehicle.
● The non-insulated parts of the battery
clamp
s must not be allowed to touch. The
jump lead attached to the positive battery
terminal must not touch metal parts of the ve-
hicle, this can cause a short circuit.
● Position the leads in such a way that they
cannot c
ome into contact with any moving
parts in the engine compartment.
● Do not lean on the batteries. This could re-
sult
in chemical burns. Note
The vehicles must not touch each other, oth-
erw i
se electricity could flow as soon as the
positive terminals are connected. Changing the wiper blades
W ind
s
creen wipers service position Fig. 81
Wipers in service position. The wiper arms can be raised when the wip-
er
s
ar
e in service position ››› Fig. 81.
● Close the bonnet ›››
page 270.
● Switch the ignition on and off.
● Press the windscreen wiper lever down-
ward
s briefly 4
› ›
› page 32.
Before driving, always lower the wiper arms.
Using the windscreen wiper lever, the wind-
screen wiper arms return to their initial posi-
tion.
››› page 97 72
