If I were you, I'd check with your dealer or MBUSA to see if your car has had the front frame recall done. That invloves checking for cracks and beefing it up if it hasn't been done. That job calls for removing the front subframe mounts, so if MB is going to be paying for the labor for that job, you buy the new mounts and let them put new ones in when they put it all back together. All you pay for is the parts. Now if your car has already had that recall done, it will cost you a few bucks ot have someone do it.

Len