# Mercedes noise under the hood **URL:** \ **Category:** Maintenance/Repairs\ **Tags:** m-class, mercedes-benz\ **Created:** [October 9, 2012, 5:18am UTC](https://community.cartalk.com/t/mercedes-noise-under-the-hood/74889 "2012-10-09T05:18:30Z")\ **Posts on this page:** 4\ **Page:** 1
**Author:** ![Cls757](https://avatars.discourse-cdn.com/v4/letter/c/eb8c5e/32.png) [@Cls757](https://community.cartalk.com/u/Cls757)\ **Post date:** [October 9, 2012, 5:18am UTC](https://community.cartalk.com/t/mercedes-noise-under-the-hood/74889/1 "2012-10-09T05:18:30Z")
Last week I noticed that my engine (2006 ML350 33,000 miles )was not sounding as it normally does. I called my foreign car repair shop that normally maintains my car but could not get an appointment for several days. My husband thought that it was possibly a bad bearing in one of the belt pulleys near power steering pump. The noise was getting louder so my shop looked at it sooner and determined I needed a power steering pump, reservoir, gasket, fluid,accessory belt tensioner and belt for a grand total of $1456. I had no choice but to get the repair.When I picked up my car it still didn’t sound right. I was told it would take a little time to break in. Well all week my car was making a lot of different sounds until it got so loud I wouldn’t drive it. I took it in today and got the call that it needed what I think was called a/c tensioner pulley. The charge will be another $250 but they won’t charge me labor. I just want to know if this seems possible. (Car drove fine and no problems with steering before first repair) ---
**Author:** ![RemcoW](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/remcow/32/2471_2.png) [@RemcoW](https://community.cartalk.com/u/RemcoW)\ **Post date:** [October 9, 2012, 5:20am UTC](https://community.cartalk.com/t/mercedes-noise-under-the-hood/74889/2 "2012-10-09T05:20:45Z")
Hate to say it but it seems to me they replaced the wrong parts. ---
**Author:** ![Caddyman](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/caddyman/32/23_2.png) [@Caddyman](https://community.cartalk.com/u/Caddyman)\ **Post date:** [October 9, 2012, 6:57am UTC](https://community.cartalk.com/t/mercedes-noise-under-the-hood/74889/3 "2012-10-09T06:57:08Z")
Remco is right and don’t think this is the first time this has happened…A Benz P.S. pump should be good for far more than 33K miles…Live and learn…And find a new shop… ---
**Author:** ![the\_same\_mountainbike](https://avatars.discourse-cdn.com/v4/letter/t/c89c15/32.png) [@the\_same\_mountainbike](https://community.cartalk.com/u/the_same_mountainbike)\ **Post date:** [October 9, 2012, 9:26pm UTC](https://community.cartalk.com/t/mercedes-noise-under-the-hood/74889/4 "2012-10-09T21:26:45Z")
One more agreement with Remco. And with Caddyman on finding another shop.