I just installed hr springs on my 2010 panamera s. The front end knocks Everytime I hit any kind of a bump. Even when I go from reverse to drive it knocks. Rear springs are perfect. Any ideas as to what it is ?

 

Most likely the springs are installed incorrectly and/or the springs are not seating ...Go back to the place that installed them and complain.

 

I have same problem but mine is in the rear. I simply think this is the luck of the draw when installing aftermarket springs. I have not been able to find any solution and I don't think it's because the springs are installed wrong. I had a reputable shot install mine and still have the problem. Only over speed bumps.

 

Top nut wasn't torqued all the way. Problem was solved