If and when
232
Jump leads
Jump leads must comply with standard
DIN 72553
(see manufacturer’s docu-
mentation). 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 vehicles must not touch each other, otherwise electricity could flow as
soon as the positive terminals are connected.
•
The discharged battery must be properly connected to the vehicle elec-
trical system.
How to jump start: description
Jump lead terminal connections
1. Switch off the ignition of both vehicles
⇒
.
2. Connect one end of the
red
jump lead to the positive terminal
⇒
fig. 163
or
⇒
fig. 164
of the vehicle with the flat
battery .
3. Connect the other end of the
red
jump lead to the positive
terminal
in the vehicle providing assistance
.
4. On vehicles
with no Start-Stop system
, connect one end of the
black jump lead to the negative terminal
in the vehicle
providing assistance
⇒
fig. 163
.
5. On vehicles
with the Start-Stop system
, connect one end of the
black
jump lead
to a suitable ground terminal, to a solid metal
part bolted to the engine block or to the engine block itself
⇒
fig. 164
.
Fig. 163 Diagram for
connecting jump leads if
the vehicle providing
assistance the current is
not fitted with the Start-
Stop system: flat battery
and battery providing
current .
A
A
A
B
Fig. 164 Diagram for
connecting jump leads if
the vehicle providing
assistance is fitted with
the Start-Stop system:
flat battery
and
battery providing current
.
A
A
A
B
A
+
A
+
A
A
A
+
A
B
A
-
A
B
A
X
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