[Kev0607]

Hi,

I have a P3 shape S80 with the auto TF80SC gearbox. I'm thinking of doing a tramission fluid change via the drain & fill method, but I'm wondering which of the below is the best method:

1. I've read that some people simply drain what they can out of the transmission (Usually 4l max) using the drain & fill method, then pour the same amount of fresh fluid back in & leave it at that (One drain/fill).

2. Some do one drain & fill, drive a few hundred miles & then repeat the process two/three times over a period of time.

3. Some do multiple drain/fills all at once, but that means you’d have to have plenty of transmission fluid to hand

Do you need to reset the adaptions after changing the fluid?

Thanks in advance.