Hello this is my first audi , long time vw boy especially mk4 golf. The car is a 2004 b6 a4 avant sport 1.9tdi 130 in black. The hand brake won't hold. I've changed cables , and calipers and discs and pads are like new . I'm out of ideas !!! With foot off brake hand brake comes up few clicks. Nice . But with foot on brake it comes all way up.