I need help! 2003 S80 no disc retention bolts & trans proble

[andrewlewis]

Hello all! I'm new to this so please help me out. I bought my s80 2 years ago from a local used highend auto dealer. About 1 week after buying the car the car started slipping out of gear and by the time I got it back to the dealer it was slipping so bad it would bearly go anywhere. I left it with them and they called be back to pick it up saying it just needed to have the trans conditioned. No I know a little bout cars and work on them ofter but I dont know anything at all about trans. So it worked and I didnt see any problems until about 1 year ago when it started again but this time very little slipping. I bought an extended warrenty with the car so I took it to the dealer to see what they had to say. They told me the trans computer needed "upgraded software" and my extended warrenty didnt cover that, so $200 later. The problem was then solved until now. Now the trans is starting to slip a little again. What should I do? Should I drain the fluid and replace the filter? What is trans conditioner? I'm at a loss.

I also have another problem. From loooking at rotor replacement diagrams online I've found there is supposed to be a disc retention bolt on my vehicle. Well there arent any on either side of my front rotors. Could they be broke off and if they are how do I get my rotors off? I will be adding pics asap.

[vegasjetskier]

I'd change the fluid and filter.

You don't really need the retention bolts. They just hold the disk in position while the wheel and lug bolts are installed. It might be harder to install the wheel without them, but they aren't essential.