BEWARE Mercedes Benz owners. I made the very bad mistake of purchasing these pos's for my Cl 500 and had them put on by a certified machine like they wanted. After them installed I noticed the drivers side front was a inch lower than the passenger side. Then the center nut stripped out with less than 500 miles on them. This is how the strut is mounted to the car so it banged when it was driven. Plus all the struts squeak so bad people walking turn to look at what he noise is all about. Before I bought this junk I had the front end rebuilt by a certified mechanic. When I went to my mechanic he showed me what the problem was that the nut I the center was made of bad inferior material. When I called they tried all the excuses I've told you about in these warning. They wanted my to pay for the replacement strut and send the broken one back at my cost!! Which is over a $100 bucks. So they double screw you. I can't imagine it's just Mercedes owners getting screwed by these things so all car owners BEWARE!! Just ANOTHER DISATIFED CUSTOMER