It will vary depending on if you have HID lighting or Halogen Lighting which you did not include in your question. 2005 Volvo S80 headlight bulb general replacement procedure: Purchase the correct replacement headlight bulb(s) first, before disassembling the vehicle. See sources and related links below for replacement bulb information. Then consult your owner's manual for the headlight bulb replacement procedure. As simple as it sounds, the owner's manual is the best place to start for bulb replacement instructions and illustrations. You may want to consider replacing both left and right at the same time in order to keep brightness and color equal (optional).
The 2005 Volvo S80 has 20 valves.
The 2005 Volvo S80 is a gas-powered vehicle.
The 2005 Volvo S80 has a 5-speed automatic.
The 2005 Volvo S80 has an inline 5 engine.
The curb weight of the 2005 Volvo S80 is 3576 lbs..
The 2005 Volvo S80 is 15 ft. 10.9 in. (190.9 in.) long.
The height of the 2005 Volvo S80 is 4 ft. 9.2 in. (57.2 in.).
The 2005 Volvo S80 has a drag coefficient of .28 Cd.
The 2005 Volvo S80 has double overhead cam (DOHC).
The 2005 Volvo S80 has 55.6 in. of rear hip room.
The 2005 Volvo S80 has 37.6 in. of rear head room.
The 2005 Volvo S80 has 42.2 in. of front leg room.