Cost for transmission replacement"

If you won't take it to the dealer make sure the other place has access to VIDA or DICE Volvo diagnostic computer. The transmission control module has to be reprogrammed, fluid counter and adaptations needs to be reset. Zee

These transmissions may only be available from the dealer, so even if you go to an Independent shop, they will be purchasing the part from the Dealer. 6K sounds about the going rate, the part itself can be up to $3-$4.5K and 12 hours of labor, just for the transmission replacement.