Had the same problem on my 2008 300c Touring, make sure you check the front lower suspension bushes. If they are shot, don't , I repeat, don't fit cheap after market ones! I learned this the hard way! It's cheaper in the long run to re-bush them with Pedders poly bushes. This will also eliminate the problematic 'adjustable' lower rear bushes as the Pedders ones are straight through, not elongated holes! Be prepared to have the car tracking checked afterwards as the difference will be massive!! Peds