Volvo 2007 S80 Owner's Manual page 191

The entire headlight housing must be lifted out when replacing all front bulbs (except for the fog lights).
CAUTION
Never touch the glass of bulbs with your fingers. Grease and oils from your fingers vaporize in the heat and will
leave a deposit on the reflector, which will damage it.
NOTE
Always switch off the ignition before starting to replace a bulb.
The optional Bi-Xenon headlight bulbs contain trace amounts of mercury. These bulbs should always be disposed
of by a trained and qualified Volvo service technician.
Removing the headlight housing
1. Switch off the ignition by pressing quickly on the start/stop button and remove the remote key from the ignition
1
slot .
2. Withdraw the headlight housing's locking pins
3. Pull the headlight housing straight out
4. Unplug the wiring connector
CAUTION
Pull the connector, not the wiring.
5. Lift out the housing and place it on a soft surface to avoid scratching the lens.
1
Does not apply to vehicles with the optional keyless drive.
199
06 Maintenance and specifications
Replacing bulbs
.
.
by holding down the clip with your thumb and pulling the connector out.