Here's hoping someone can help before I am forced to reluctantly part with my 5 series. I have had a rear wheel wobble for about 2 months now between 55 and 75. When there is no load on the wheels, i.e. No acceleration or declaration then it's practically non existent. As soon as I speed up or slow down through that speed band the rear wobbles from left side. I've replaced all the tyres, had the alloys checked by 2 different specialists, replaced the rear coil springs (one had snapped), had the suspension components checked by 2 different places, had the wheels balanced by 6 different places and I have now lost the will to live with it. Any idea where I can go from here?