Changing the Tranny fluid for the 1st time since getting the A4 with Tip.

[hippierapinc]

I bought my 1998 A4 1.8T with tip a little over a year ago and am wondering about my transmission. I know , I know.... tiptronic.

I'm not too sure what state my transmission fluid or my rear diff is in, since getting the car. (Nothing's wrong as far as I can tell, I haven't had any issues with my tip when shifting and all that, but I want to get some input on what to do, simply for peace of mind)

That being said, I've read from other threads that I should change the ATF every 45k, though the Bentley manual goes on to list 25k intervals for the 1998 1.8t A4s.

I imagine the best route is to change the transmission fluid, rear diff. fluid, and the filter. Then say about 1k later, completely change them again to get all the remaining bad stuff out. Then just have the transmission fluid, rear diff. fluid and filter changed every 25k like suggested by the Bentley manual.




My main question is if overall this is a wise/ the proper route to go?...Should I change both the transmission and rear diff. at the same intervals or does rear. diff last longer? Is 25k intervals proper for the 1998 1.8T A4s? Is changing all fluid and the filter then doing it again 1k later a good way to ensure there's no clogging and my ATF is ideal?

Thanks in advance!!

[arjun90]

If you're not experiencing issues with the rear differential, you change the fluid-only for the peace of mind. Preventive Maintenance is better than nothing.