V50 Electrics : 12v Cigarette lighter fuse (f45)....always blowing.

SOURCE: 12 Volt Cigarette Lighter / Accessory dead

Most likely just replace it. You could pull the fuse and then use a small screwdriver to try and pull the tabs inside the receiver in toward the center a little. It could be that repeated insertion and extraction of the lighter or accessory plug has bent them outward enough that they're not making sufficient contact to power what you plug in. If that doesn't work, replace it and then put the fuse back in.

SOURCE: 2000 volvo s70 cigarette lighter won't work

I don't own a volvo so no. Does the cd changer work ?

If not then that fuse needs to be replaced. as your dealer was kind enough to give you a hint (check the fuses on each side of the #30 fuse). and replace if necessary.

Robert

SOURCE: Cigarette lighter problem

Good time to quit smoking