I bought my 99 S80 with 30K miles before I realized what I was getting into. I have learned alot about autos and their manufacturers since I bought the S80. I am now at 130K. I have performed all of the services on the car. My ABS/STC module problem has me concerned.

I have had the following problems:
ABS/STC module
Check Engine light
Sunroof will not retain its flush postion
Sunroof rails fell off of the glass
driver side window of tracks

I am concerned that there is only one dealer within 100 miles of my home. I took the car in to get the check engine light checked at the dealer and was told (by a service associate) that there were several codes in the computer and that I needed to replace all of the parts for the respective codes in order to remedy the check engine light(>$2000). Being an engineer, I unnderstand "Root Cause". I now do not trust the dealer. After a heart to heart with the service manager, nothing was really accomplished.

I am trying to decide whether to keep the car or trade for a Camry or Accord. I know that they are less "inspiring" to drive but want more dealer choices and fewer problems. Are there any other major S80 potential problems that I should be aware of when making this decision? I struggle with the decision because my mentality is that I'll just take care of this issue and see what happens. Since the car is paid for I don't want to throw away the money put into the car, but want to avoid putting money into a bottomless pit.

Looking for wisdom here. Hoping to see an angle that I haven't thought of thus far.