Porsche 911 Carrera Manual page 224

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.
224
Practical Tips, Emergency Service
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.