Porsche Cayman Owner's Manual page 252

Changing bulb for high beam or additional
high beam (Bi-Xenon headlight)
1. Turn the bulb holder.
Turn it counter-clockwise on the left headlight
and clockwise on the right headlight.
Take bulb holder out of the headlight housing.
252
Practical Tips, Emergency Service
2. Pull both plug release tabs apart.
Pull plug out of the bulb holder.
3. Replace the defective bulb with bulb holder.
4. Reassemble in reverse order.
Closing lid of headlight housing
1. Push on lid until it perceptibly engages.
2. Fasten lid with the 4 screws.