Where is the fuse for the central locking on a v50 volvo

SOURCE: locate cabin air filter in volvo V50

It's under the dashboard. First you must dismount the accelerator pedal (!), remove some dashboard plastic on driver side. The filter is somewhere behind the central console.
I think it should be changed every two years. Look into the manual.
The company where you take the car for oil & filter change every year must change also this filter with no additional charges. Of course they charge you for the filter, which is not very exponsive.

SOURCE: INTERNAL BOOT COVER volvo v50

Find a crashed one near you and but the part. The way the cheapest solution.

SOURCE: 2008 Volvo V50 - Cabin Air Filter Location?

It's under the dashboard. First you must dismount the accelerator pedal (!), remove some dashboard plastic on driver side. The filter is somewhere behind the central console.
I think it should be changed every two years. Look into the manual.
The company where you take the car for oil & filter change every year must change also this filter with no additional charges. Of course they charge you for the filter, which is not very exponsive.

SOURCE: '06 Volvo V50 drivers seat belt is jammed.

I solved this on my 95 volvo 850 glt as follows:

pull the seatbelt pilar cover off from the door jamb. this runs vertically up the pilar between the front an back door (beside the front seats. Once opened loosen the belt by gently pulling the belt upward toward the roof. You'll have to do this sometimes in small increments. Once the seatbelt is pulled out all the way, spray small amount of lubricant into the joint where at the top of the belt spool. Also use a screw driver to push spool upward while pulling the belt. At first it's only going to release a little but eventually the lubricant will work its way into the seam at the top of the belt spool and loosen up the stuck inertia catch. Until it completely loosens you might have to remove the pilar cover again and work the seatbelt out (also use the screw driver technique described above) in order to use the seatbelt. When parking, I would relatch the seatbelt and pull the slack up around the back of the head rest. After a day or so it worked normally.

good luck and don't give up.

Testimonial: "Thanks, this works! Got to mechanism by taking small hole edge trim off, pushing it upwards released ratchet. No probs since. "

SOURCE: My 2006 Volvo V50 won't start.

Check the passenger foot area. The CEM is located there and many time passengers unplug connections with their feet unknowingly.

There is only thin insulation between the foot area and the CEM.

CEM= Central electronics module.