I dont know, we needed one asap for my moms car so we had to get one at Autozone. Actually my dad went and got it w/o consulting with me. He has never owned a Mercedes before and he had done went and purchased it and installed it. I didnt have the heart to tell him differently. He was just glad it started. lol.

They would not have taken it back anyway. I think it was a duralast brand or something like that and it was $105. Kinda sad considering I could have purchased the Bosch unit on here for about the same price. If it goes out, we will def go with the Bosch.