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And the problems begin..

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And the problems begin..

 
Old 03-10-2014, 09:46 PM
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And the problems begin..

Hi guys, got a 2009 c300 4matic sport yesterday. I thought the transmission was blown, but the transmission is fine shifts perfect. To describe the sound I hear around 40mph is like the car is trying to shift with high revs, but the tranny isn't the issue. The sound seems to be coming from the right rear part of the car. Like a loud rev type sound even without the foot on the gas, and in neutral.
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Old 03-10-2014, 10:35 PM
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2008 W204 Sport
Edit, just re read the question

Last edited by xXHotelCrazyXx; 03-11-2014 at 06:12 AM.
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Old 03-11-2014, 12:20 AM
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Sounds like a wheel bearing to me
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Old 03-11-2014, 02:05 AM
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Hole in exhaust pipe ?. Put a rag over the end & to create pressure to see whether the noise changes.
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Old 03-11-2014, 06:08 AM
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If the noise gets louder while turning the car one way, and quieter the other, it's def a wheel bearing.
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Old 03-11-2014, 07:47 AM
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+1 on the wheel bearing. To test just drive the car and slightly turn the wheel left to right. You should hear some kind of change in sound. NOW being its the rear its harder to tell, so keep your ear open to a change of tune. If you do hear a difference even if its slightly, it means wheel bearing.
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Old 03-11-2014, 09:03 PM
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2004 C240 4matic, 2009 C300 4Matic
confirmed wheel bearing guys, thanks any idea on the how much for it? average
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Old 03-11-2014, 10:00 PM
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Originally Posted by Akhafeez View Post
confirmed wheel bearing guys, thanks any idea on the how much for it? average

the bearing itself is cheap. depends who does the work, labor can vary from a dealer or indy shop. either a shop press by removing the hub or press while in the car. depends on what tools they have. Probably around $500 per side. if youre to close to me, I can do it for free plus materials. Ive done so many of them. I have a 20 ton shop press.
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Old 03-11-2014, 10:25 PM
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I wish I was man, I'm up in NY
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Old 03-18-2014, 09:17 AM
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Hi guys just changed the right rear bearing the noise is still there. Took it to get the alignment checked because i noticed uneven wear. There is camber out of the left front -1.3 degrees and left rear -1.9 degrees. Should I change the left bearing too?
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Old 03-18-2014, 10:23 AM
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Where did you buy this car from? Since you just bought it, can you take it back to have them replace the wheel bearing at no charge to you?
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Old 03-18-2014, 10:24 AM
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Hi Pete, I bought it from a private seller unfortunately..
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Old 03-21-2014, 12:33 PM
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I would suggest you take it to a professional and although you will be paying shop prices, In the long run it will be cheaper than trying to guess what the issue is. I see this all the time. My customers come in after they spend hundreds of dollars with no results.

Also your camber is not the cause of the noise. They do sell camber kits to adjust camber but they really are no help at all because they really don't adjust much more than .3 deg. If you have a camber issue I would recommend you replace all the front end parts. Sagging bushings are usually the cause (ex: control arm bushings etc). These camber bolts are just for the front FYI. Rears do not exists.

Last edited by JPc300; 03-21-2014 at 12:44 PM.
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