You're probably looking into another $2000 or so in further repairs. Unless you're willing to foot the bill, it might be time to look into trading in the car. Unfortunately, Volvos aren't as overbuilt as they used to be. My 1986 245 GL didn't require much in terms of maintenance costs (~$200/yr) until it's tranny needed to be replaced at 180K.

I've actually owned 3 850s. I picked up the first one, a 1994 850T, used in 1998 with 100K. Until it was totaled in an accident at 150K this year, I think I spent about $2500 on the car for both maintenance and repair items. Problems that I had included both front and rear knock sensors (replaced twice under dealer warranty), the evap canister, A/C temperature sensor, both CV boots, both tie rod ends, passenger side front calipers, and a turbo oil return leak. My evaporator leaked (never fixed - I just recharged the system every 2 years), my roof trim pealed off, and my rear main seal also leaked (again, not fixed as it was also a slow leak - I used up one quart every 2K). The previous owner loved the car, but quickly sold it once his warranty ran out at 100K, given the fact that he had to replace the turbo at 5K, both oxygen sensors at 60K, and a fuel sensor at 90K.

Since the accident, I've actually since purchased two 1997 850s (an 855T5 and a 854T5) with under 60K each. I'm probably nuts, but I really like the car. The seats are incredibly comfortable and I like the way it looks and drives (my wife and me are suckers for the boxy look). It also allowed me to walk away from an accident that in most other cars, probably would have landed me in the local ER. It also helps that given my experience with the other car, I can probably diagnose and fix any future problems in the new vehicles, and thus I can avoid the local dealer.