Has anyone ever had problems with rusted brake lines? My V8 is a 89er with only 60tkm and was mostly standing in the garage but nevertheless the brake lines are strongly corroded to the rear and the sheathing crumbles in many places. Does anyone know how much work it is to change? Furthermore, the workshop told me that a so-called "pressure memory" is probably also broken, because after frequent braking the brake control lamp arrives at the stand gas, but after 1-2 sec or gas-giving it goes away again.