vibration problem

Hi BMW friends.. I have previously had different post about my problems with a vibration from the rear in my car. I have a vibration from about 50 to 170-180 km/h. It is unfortunately not constant because it is different from day to day. One day it is bad and next the vibration are nearly...

2002 525 that has had quite a few issues this year - inc new turbo (£2k - ahh!) and recent fuel pump/sensor issues causing max 3500 rpm. Sensors have all been replaced but problem only fixed by bypassing new sensors! leaving fuel injection error on dash (£800 - ughh!) This has been diagnosed as...