Your VADIS readout and the Service report will list what problems were found to make up the $2000 they claim needs to be done. Ask the Service advisor what the part numbers are. You paid for their time. Try resolving these other ways if possible with used parts or buy new parts from the Boston Volvo site at this web page. They will save a lot of cost in parts. If you can replace the problem parts you'll save a large part of the (high quote) that the dealer typically gives.

Then sell a working car over trying to trade in a problem for pennies on the dollar.

GR