Hi Dave, nice to hear from you again. Firstly oil level was low (min), I will have a look at these hoses and vac lines. Am I looking for cracks, blockages, or what? I have lots of experience re valve stem oil seals and would rule that out for now. I have paid particular attention to when lifting of from high speed and then flooring it again and it is clear as a bell. The steering however is heavy compared to my 530D so would need to look at that. I will need advice re the hoses/ vac lines and steering angle sensor but I appreciate your help and it does make sense. thanks Paneuro. P.S. I am waiting on a new crankcase breather.