I did bring it back after the warranty was up and they temporarily fixed it once again. Problem is, this time they said that it wasn't related to the original problem and that some plate was bent and was rubbing, so they bent it back. They "did me a favor" and didn't charge me for this. Sure enough, the noise I was hearing went away, but 1 week later, it was back! So my arguing got me a "free" service, but they lied about the problem and gave me a temporary fix once again.

I had a Saab and brought it to Walts Bros and was happy with them. They told me they will only do basic service to Mercedes - brakes, oil changes... JE Robison is great, but they are expensive. Since everything seems so easy to DIY, I was hoping to find someone to help me without getting ripped off at the shop.