I have recently taken of a new BMW520dSE and am dissappointed with the apparent wandering in the steering at speed on motorways.
It is not dangerous but needs constant adjustment to maintain a straight line if the road is only slightly uneven.
This was not experienced in my previous 520i and could be due to the run flat tyres.
Other drivers of my car have experienced the same problem and my colleague who drives a 320d also complains about the handling for the same reasons.
Has anyone else experienced this problem?