Porsche Boxster Owner's Manual page 76

Emergency operation – pulling out the
ignition key
If the vehicle battery is dead, the key can be pulled
out only if the emergency operation is performed.
1. Grasp the fuse box cover at the finger hole and
pull it off.
2. Unclip metal hook A on the inside of the cover.
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Operation, Safety
3. Use metal hook A to remove the plastic lid B
from the ignition lock. Make sure that plastic lid
B is not lost.
4. Turn ignition key counter-clockwise as far as it
will go.
5. Press metal hook A into opening C.
An unlocking sound will be heard.
6. Turn the ignition key to initial position (0) and
remove.
7. Re-fit the plastic lid B.