Practical Tips, Minor Repairs
321
Removing battery
1. Withdraw the ignition key.
Remove the Porsche Entry & Drive control unit
from the ignition lock in vehicles that contain
this feature.
Please observe the chapter “REMOVING THE
CONTROL UNIT FROM THE IGNITION LOCK” on
Page 58.
2. Undo the 4 fastening nuts of the battery box.3. Open the 4 clamps of the battery-box cover.
4. Remove the battery-box cover.
Danger!
Danger of explosion and injury and risk of
short circuit and damage to the alternator
and electronic control units.
fDisconnect the negative cable first, and then the positive cable.
5. Disconnect the negative cable.
6. Disconnect the positive cable.7. Pull off vent hose G on the battery.
8. Undo fastening nut H of battery fastening
plate.
9. Remove battery fastening plate.
10.Lift battery out of the battery box using the
folding handles.
322
Practical Tips, Minor Repairs Installing the battery
1. Place battery in the battery box.
2.Important: Do not forget to connect vent
hoseG to the battery.
Make sure that both ends of the vent hose are
properly connected.
Danger!
Danger of explosion and injury and risk of
short circuit and damage to the alternator
and electronic control units.
fConnect the positive cable first, and then the negative cable.3. Connect the positive cable.
4. Connect the negative cable.
5. Tighten battery fastening plate with fastening
nutH.
6. Put on the battery-box cover carefully.
7. Engage the 4 clamps on the battery-box cover
and close them.
8. Tighten the 4 fastening nuts of the battery box.
Practical Tips, Minor Repairs
323
Emergency Starting with Jumper
CablesIf the battery is discharged, e.g. in winter or after
the car has been parked for a long time, the bat-
tery of another car can be used for starting 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 connected to the vehicle's elec-
trical system.
fPlease observe the chapter “BATTERY” on
Page 312.
Note
Do not try to start the car by pushing or towing.
Damage to the catalytic converters and other
components of the car may result.
Danger!
Risk of damage and serious personal injury
due to short circuit.
fUse only jumper cables of adequate diameter
cross-section and fitted with completely insu-
lated alligator clips.
fFollow all warnings and instructions of the
jumper cable manufacturer.
fWhen 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.
fThe vehicles must not be in contact, otherwise
current might flow as soon as the positive ter-
minals are connected.
fThe cable clamps must not be allowed to con-
tact each other when one end of the jumper ca-
bles are connected to a battery.
fCarefully ensure that tools or conductive jewel-
ery (rings, chains, watch straps) do not come
into contact with the positive jumper cable or
the positive battery post.
fImproper hook-up of jumper cables can ruin
the alternator.
Risk of caustic burns from escaping acid.
fDo not lean over the battery.Danger of gas explosion.
fImproper use of booster battery to start a ve-
hicle may cause an explosion, resulting in se-
vere personal injuries.
fKeep sources of ignition away from the bat-
tery, e.g. open flame, burning cigarettes or
sparking due to cable contact or welding work.
fA discharged battery can freeze even at
14°F/ 10°C. Before connecting jumper ca-
bles, a frozen battery must be thawed out.
