But from the beginning: vehicle is a V70d5 6GangGT Md.2009. Km 273,500 I have already spent a few kilometers with the elk and everything ran up to small problems that I could solve thanks to the forum and of course the know how of the members. Only the PDC sensor is still overdue, sure a DHL strike victim. After about 1800km with the caravan (1700Kg) that happened yesterday and again this shaking occurred as if you were driving over a washboard. Dangers speed approx. 80Km/h, different road coverings. The shaking runs through the whole car, is short in the steering and is also to be seen and stops again. Altogether so about 10 seconds. Thanks to easy steering movements it can be interrupted. Altogether about 7-8 times. Today the same route ran again without caravan, everything is quiet as always, no vibrations, nothing. Also on the caravan everything, wheel storage and brakes are pulled off. Oh yes the trailer had to be on top of it.