Hello all together I recently got a year of construction 2006 Phaeton V6 tdi, has become my first VW and I really have to admit, no matter how much negative one hears about these vehicles, and how much with the electronics everything can go wrong and everything else, that is not a VW that is the stepbrother of the Bentley this width, interior space and comfort is simply fantastic! But so dreamlike a box packed with technology could not stay and therefore now to my own problem :/ I bought the vehicle with a defect spring leg right (according to seller) , therefore the car at the rear is quite normal but front to low, and therefore shows on the speedometer also in red: stop vehicle to low ! Now I have informed myself several days about it and learn that with the Phaeton who even one spring leg is defective the other side also automatically both go down , so the car then does not stand like with my old W220 s class wrong like a lowrider , That’s why I now had to buy in front of the right spring leg until yesterday ! Yesterday I got out with my father that the spring leg is not broken at all ! If you open the bonnet and the upper cover is removed where the spring leg screws are watching is a plug , we had just taken out both plugs and several seconds later again plugged in and suddenly the vehicle came up front ! I and my father then put us in front of the engine and the vehicle still came up, but when we turned off the engine we heard at the right side below an air noise so there is a leak, and in less than 1 minute true the vehicle at the front again low. My question to you: How could I proceed now? How could I best find the leak and where could this leak normally be? I am happy and thank you already for every answer.