Newbie could use some help
 

Hey y'all I'm new to the Volvo world after needing a commuter car to go back and forth to work. I ended up getting a S60 with 134k on it. It's in pretty good shape and has been running pretty good. I'm actually pretty impressed with it so far.

My questions are
1) the tranny shifts pretty hard from 2nd to 3rd so I changed the fluid in the pan today which was pretty nasty and smelt burnt. Whoever had it before me also had it overfilled by about 2 quarts so I made sure that I put in 4 quarts back in and checked the level which was correct now. With all that being said, will changing the fluid until it's nice and clear again help the firm shifts? It seems like it gets better and then goes back to the firm shifts.

2) the sunroof was pretty loose on the back side. I found the screws to tighten it and they were pretty loose. The sunroof is better now but still has a small amount of play in it. Is there any other tricks or screws I can tighten to make it seal better.

Thanks for all your help!