khelms98

I have a 2010 E350 Sport with approximately 55k miles and it has a rhythmic squeaking from the engine that increases/decreases in frequency depending on RPM. It's not on the verge of squealing but it is noticeable and I'm afraid it might only get worse. The idle is fine and you can't hear it inside the car but at idle and if I pull off from a stop with the windows down, you can hear it. The sound occurs after start-up and even after the car has been driven warm. When the hood is open it's hard to pinpoint but with the hood closed and all the sound being projected through the grill, the noise seems more prominent. The car has been perfectly maintained and is great in every other way...not even a rattle, but this is going to start annoying me on a $60k car. I'm clearly out of warranty at this mileage so I'd like to have an idea of what I'd be dealing with when I take it in to the dealer. Any thoughts? comments? follow-up questions? Thanks for the help!

I previously owned a 2007 E350 that was bulletproof and this car is terrific and better in many ways, I just can't stand the thought of my car making this racket.

Thanks for the help!

K-A

Sounds like what my 2006 E350 had at around 35K Miles. It was one of the belts (can't remember which) that they replaced.

khelms98

Oh okay, thanks. So it wasn't a big deal? Also, since I'm out of warranty, how long did it take them to diagnose and replace it? I ask this because I'll be having to pay for the parts/labor to have this remedied. Thanks again for your input!

ttoE550

My thought too. Had the same with my Subaru WRX. Cost $200. So for MB, get a second job...