jnruss26

So I joined the forum a little while back, and have not posted anything yet, but I have found this site very helpful. I bought my 2011 C300 4matic sport back in July and it has been the best vehicle I have ever had. When I first bought the car I noticed it idled a little rough when I would start it for the first time of the day, looking through the forums I saw many people have this issue and said it was normal for these cars. I decided to just for giggles a couple weeks ago to replace the check valve for the air pump, https://www.fcpeuro.com/products/mer...mer-0025407097 and it fixed the problem, its been a smooth start, and idle every time now. I just figured I would pass along this because I didn't really see anything about this part fixing that rough idle. Maybe I over looked, idk haha