Porsche 928 S 1984 Owner's Manual page 87

Start assist connecting points sequence
On right side of engine compartment you will
find a positive (+) battery post (remote con-
nection).
First connect clamp at end of positive (+)
cable to the remote connection in the en-
gine compartment (+arrow). Then connect
clamp at other end of positive (+) cable to
the positive (+) terminal of the booster bat-
tery.
Next connect clamp at end of negative (-)
cable to the negative (-) terminal of the
booster battery. Then connect clamp at
other end of negative (-) cable to the en-
gine compartment strut rod (- arrow).
Caution: The cable clamps must not contact
each other, and the plus-cable leading to the
positive (+) post must not contact any metal
part of the car.
Caution: Do not try to start car by pushing
or towing. Damage to the catalytic converter
and other components of the car may result.
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