Porsche 911 GT3 Owner's Manual page 226

Bi-Xenon headlight (with cornering light):
Changing bulb for additional high beam
1. Turn cover counter-clockwise and take off.
2. Pull off plug. 3. Disengage fixing clip.
4. Replace defective bulb.
5. Engage fixing clip, insert plug, reinstall the
cover and rotate clockwise to stop.
Practical Tips, Emergency Service
225