Hello, I have "low brake pressure" light going off on my dash. I found out its because my accumulator is leaking air. I bought the mineral oil and the new part.

To me it looks as simple as unscrewing the old one and replacing it with the new.

Now what can i expect when i do this? Is there more protocol than this? Do i have to pump the brakes to relieve pressure or do i have to drain the fluid some how?

Can somebody give me step by step directions if you have done it before??

 

yes, pump the breakes to multiple times to relieve the pressure. Then unscrew and replace. Also check on the XJ40 forum.