Porsche Cayman Owner's Manual page 274

Installing
1. Insert headlight into the guide rails and push it
fully into the fender.
2. Push headlight to the rear and at the same
time turn the socket wrench until it points
horizontally to the rear C. The headlight
locking device must perceptibly and audibly
engage.
3. Insert the rubber plug into the unlocking
opening and secure the carpet. Check the
function of all lights.
272
Practical Tips, Emergency Service
Low beam, high beam and additional high
beam
Opening the lid of the headlight housing
1. Unscrew the 4 screws A.
2. First lift release tab B, then push both release
tabs C upwards and take off lid.
Halogen headlights: Changing bulb for low
beam
1. Pull off plug A.
2. Disengage fixing loop B.
3. Replace defective bulb. When doing so,
ensure bulb is seated properly.
4. Reassemble in reverse order.