Originally Posted by werminghausen

Yes I can confirm a similar experience when my brakes worked well in the past.

Right now the bake motor comes on at every second application for about
15 seconds.

It is not only that the motor comes on more often but also much longer each time.

This could indicate that my currently installed ' rebuilt accumulator' is very weak.
An accumulator with lower charge needs more oil volume pumped into the accumulator in order to reach the system set pressure.
So far this is my theory.

I reached out to the place where I bought the rebuilt unit on ebay and asked the question to what pressure they were charging the accumulator they sold me as 'rebuilt'..... no answer so far.
My guess is they did not do anything to the old accumulator because the filling valve on top still has the original old painted seal.... they simply sold an old accumulator as 'rebuilt'.

Martin