Happens with or without load... Happens with any tires... happens before and after tire balancing and also after alignment... those make no difference at all... when going down a hill ( I did this today) in neutral between 25-45 mph, the vibration is still there... it is constant at any speed in between... doesnt go faster or slower with speed change. goes away at 50mph. you hear when a cat purrs ? that's how it sounds but a little softer. ANY IDEAS?
'94 MB C280 Lorinser Sport Suspension