i did braied brake lines a while ago https://www.audiforums.com/m_676397/tm.htmand i got 4 out of the six lines done and now i noticed that the line that i couldn't change on the left rear is leaking a little bit in the middle of the rubber hose but i couldn't change it back when i did the rest because i stripped the hell out of the flare nut i have flare nutwrenches and used those lots of pb blaster a torch and then tryed vise grips and still i couldn't get that one off but now i kinda need to. any of you guyshave a great idea on how to change the leakey hose???

and i called the audi dealer and they don't sell that hard line and it will be kinda hard to get it from someone that is parting out an a4 since the hard line is about 4 feet long.

 

It's not too hard to just replace a short piece of the hard line. You can get all the parts to do it at a local hardware store.

Got of a pic of what you're trying to do?

 

no but ill get on the peice with the stripped flare nut is about 3-4 feet long