Hi Wayne, Why did you decide to change the seals in the transmission, was your car doing anything to prompt you to do this? Any codes thrown?

I am asking because the issue I was having which felt like a misfire when cruising at around 110km is more likely to be the transmission hunting between 5 & 6th. I have also notified the car is slow to engage reverse after its been sitting a while. The 6HP26X filter and fluids were changed 40K km ago and this issue only started about 10k km ago. Its more of a occasional annoyance as the car hasn't ever gone into limp mode, it occasionally throws a 4F86 or 4F80 Ratio Monitoring Error.

Did replacing the seals fix your issues?

Cheers
Chris 2005 X5 3.0D 334K km in Oz