Hi, i have an serious issue with my 2006 2,8 crd export modell.
While driving a week after changing all brake parts the pedal starts dropping, it works sometimes, and when i reliase presure it drops down, pedal is hard when engine is off, nå faulty codes found.

Things done so far:
New discs on 4 weels.
New shoes and brake shoes.
New Dot4+.
Bleed several times.
All brake cylynders are adjustet into brake shoes.
No leaks found, calippers ore lines.

So i'm a bit stuck now, any advice wold be helpful.

Thanks M