What is this noise?
Thread Starter
Newbie
Joined: Jul 2019
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From: Appleton, WI
C300 4matic
What is this noise?
I’m having a difficult time figuring out where this noise is coming from. It only happens when I’m in drive and the noise gets louder with vehicle speed. I have change the rear differential fluid and dropped the transmission pan and replaced the fluid in there too. I inspected the drive shaft, but nothing is jumping out at me. The flex disc appears to be in decent shape and I have a heat shield near the rear muffler that has come loose, but I fixed that with no luck. I replaced my rotors and brake pads over the weekend since they needed to be changed. The only thing I noticed is the cv axle I can move every so slightly in a horizontal direction. It won’t budge moving it up/down. There is no play in the tires so the wheel bearings appear to be fine. Any thoughts?
Thread Starter
Newbie
Joined: Jul 2019
Posts: 4
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From: Appleton, WI
C300 4matic
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Last edited by Cory Day; Jul 14, 2019 at 11:18 PM. Reason: added link
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2010 C300 4MATIC........ 2011 C63 AMG.............. 2015 CLS400 4MATIC.....
Wow that noise is pretty loud. I have something too that I'm getting checked, but its not loud like that. Not sure what it is, comes from rear.
Guess I'll keep you updated, as we could have the same issue.
Guess I'll keep you updated, as we could have the same issue.
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From: Milwaukee, WI
2010 C300 4MATIC........ 2011 C63 AMG.............. 2015 CLS400 4MATIC.....
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2022 EQS 580 4MATIC Sedan, 2010 C-Class C350 4MATIC
I noticed TC said they changed their pads and rotors and I saw one member here advise another to “bend back the shield after hitting it with the hammer to get the rotor off” so I thought maybe TC did the same mistake.
Other than that, it sounds like metal rubbing and checking those would rule them out.
Other than that, it sounds like metal rubbing and checking those would rule them out.
Thread Starter
Newbie
Joined: Jul 2019
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From: Appleton, WI
C300 4matic
Nothing is bent. I found a video online where a W203 has worn out motor mounts and it caused extra stress on the cv axle and caused it to rub and wore out the cv axle.
Going to do some more digging around.
Going to do some more digging around.
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W204 2008 C300 4matic
As you have replaced the Pads, there were metal pieces, that goes on the brake caliper, most of the time it is stainless steel. Like on this photo:
most of the time, whey you get them in, they like to slide a little, and began to rub on the rotor. I had the same issue on both front sides, just need to remove the caliper again, and just slighly move the piece in, so it would be flush with the edge
