Hello dear ones. I made myself “schlau” at the Tüv times. They say that if you do not find the tyre size in the data block of the manufacturer / vehicle it makes a single demonstration necessary and then the child is probably already in the well. Means, then if a test has too little space (or the examiner is somewhat uncertain) the decrease does not go positive. I think that the Phaeton anyway has something of a “nesthegchen”. Every S-Class and also 7s and XJ come with 275 and more on the roadway. Thus it should be possible to get a release from the GMD, that the Omanyt with ET 40 with 275 can be equipped. According to the user here this is technically no problem, perhaps with 5 mm distance disks, if the ET 40 are positive to the rim axis. Maybe one of you has already obtained a release at the GM. The heaviest bolt in the upper class and the narrowest tires from the factory (235).