How to fold a Volvo s40 2003 rear seats when the latch is broken?

SOURCE: Rear seat won't fold down (60 part of 60/40 seat)

I had the same problem on my '03. The seats would not fold down using the latch release as I had always done. So I tried a combination of pulling up on the side latch AND the top latch and the seat folded down. It really doesn't FIX the problem but circumvents offending  defective part. I will use this method until it doesn't work then I might shell out the $$$$$ to the dealer.

SOURCE: replace rear seat belt in 1993 Toyota Corolla

OK. On the front edge of the seat bottom cushion, pull up hard, both sides. This will dislodge the 2 clamps that holds the seat cushion to the floor. Pull the seat cushion out & set it aside. You will now see the female latches bolted to the area where the rear of the seat cushion meets the rear seat back bottom. Remove the bolts (14 mm I think).

SOURCE: 2001 olds alero rear seats

There shouls be 2 straps inside the trunk at the top. Both on the driver side but one is for the left side and one for the right side seats. Pulling on the straps releases the 'lock' that should then allow you to pull down the seats from the back seat area.

SOURCE: Volvo V70 rear seatbelt jammed

i know this sounds rough, but pull the seat belt with both hands as hard as you can, this will more than likely free the seat belt, some of the seat belt may have jammed in the gear inside the roller box.......

SOURCE: Fold down rear seats

THE SEAT RELEASES ARE IN THE TRUNK IN THE AREA WHERE THE SPEAKERS ARE NEAR THE EDGE OF THE TRUNK OPENING.