Porsche Boxster Owner's Manual page 204

Hardtop
Keeping
Since the convertible top stays open for a long
time, it must be absolutely dry and clean before
being opened. This prevents damp stains and
abrasion damage.
Your autorized Porsche dealer will be pleased to
advise you about correct hardtop storage.
Note
The inserts for locking of the pivot locks are not
installed on vehicles delivered without a hardtop. It
is essential to have the necessary parts retrofitted
by an authorized Porsche dealer before a hardtop
is fitted for the first time.
202
Mobile Roofs
Fitting the hardtop
1. Open doors and convertible top.
2. Carefully remove both plastic covers (arrow)
out of the pivot locks, using a screwdriver.
Store plastic covers.
Note
These plastic covers are included with vehicles that
are factory-equipped with a hardtop.
3. Pull off cover A on the roll-over bar.