Porsche Cayman Owner's Manual page 275

Bi-Xenon headlight: Changing bulb for low
beam and high beam
1. Turn the plug counter-clockwise (bayonet lock)
and pull it off.
2. Disengage both fixing loops A.
3. Replace defective bulb B. When doing so,
ensure bulb is seated properly.
4. Engage both fixing loops A, push on plug and
turn right as far as the stop.
Practical Tips, Emergency Service
273