Emergency Starting With Jumper Cables - Porsche 911 CARRERA - 2003 Manual

Emergency Starting with Jumper
Cables
If the battery is discharged, e.g. in winter or
after the car has been parked for a long time,
the battery of another car can be used for start-
ing with the help of jumper cables.
Make sure the voltage of both batteries is the
same.
The capacity (Ampere hours, Ah) of the booster
battery must not be substantially less than that
of the discharged battery.
The discharged battery must be correctly con-
nected to the vehicle's electrical system.
See the chapter "Battery" and "Emergency un-
locking of the luggage compartment lid and en-
gine compartment lid".
Note
[>
Do not try to start the car by pushing or tow-
ing. Damage to the catalytic converters and
other components of the car may result.
220
Practical Tips, Emergency Service
/!\
Warning!
Risk of damage and serious personal injury
due to short circuit.
[>
Use only jumper cables of adequate diameter
cross-section and fitted with completely insu-
lated alligator clips.
[> Follow all warnings and instructions of the
jumper cable manufacturer.
[>
When connecting jumper cables, make sure
that they cannot get caught in any moving
parts in the engine compartment.
The jumper cables must be long enough so
that neither vehicles nor cables touch another.
[> The vehicles must not be in contact, other-
wise current might flow as soon as the posi-
tive terminals are connected.
[> The cable clamps must not be allowed to con-
tact each other when one end of the jumper
cables are connected to a battery.
[>
Ensure that tools or conductive jewellery
(rings, chains, watch straps) do not come into
contact with live parts of the vehicle.
[>
Improper hook-up of jumper cables can ruin
the alternator.
Danger of caustic
burns.
[>
Do not lean over the battery.
Danger of gas explosion.
[>
Improper use of booster battery to start a ve-
hicle may cause an explosion, resulting in
severe personal injuries.
[>
Keep sources of ignition away from the bat-
tery, e.g. open flame, burning cigarettes or
sparking due to cable contact or welding
work.
[> A discharged battery can freeze even at
-lOOCj14°F.
Before connecting jumper cables, a frozen
battery must be thawed out.