Dear e39ners,Have any of you had a similar experience? especially when turning into a rest area and in order to park ,suddenly the steering feels stuck and heavy as if the steering lock is on ..or similarThen with a little extra force, it turns again smoothly.Hard to describe as it happens only occasionally eg after a long drive back/from the North.Feels stuck and not very smooth like a poorly oiled bicycle pedals if I may remember/describe the sensation. Could it be due to the power steering pump, steering rack or any thing that has to do with turning parts such as the steering shaft coupling or the tie-rod end etc? The car drives ok and no issues at all.Anybody knows what's the problem? Fear it might get stuck on a highspeed drive turn and it might be a disaster.Cheers all!