C63 AMG (W204) 2008 - 2015
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Momentary steering groan in a.m. on first turn...

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Old Oct 13, 2010 | 10:34 PM
  #1  
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'18 C63A Cabriolet
Momentary steering groan in a.m. on first turn...

Anyone else have a C63 with a power steering groan first thing in the morning? My 2009 makes this high pitched, hydraulic moan upon turning the wheel to the right for the first time each day. Happens about 7-8 times a month.

I know I posted this a month ago but I don't recall if I got any substantive answers and I don't want to have to find the old post and bump it.
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Old Oct 13, 2010 | 10:36 PM
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Recall to be announced on power steering. Just wait until it is official then take it to dealer.
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Old Oct 13, 2010 | 10:42 PM
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'18 C63A Cabriolet
Originally Posted by ZephyrAMG
Recall to be announced on power steering. Just wait until it is official then take it to dealer.

It appears that the recall doesn't encompass my VIN. 2010 and later. Mine's a 2009.

Last edited by HBC350; Oct 13, 2010 at 10:45 PM.
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Old Oct 13, 2010 | 11:03 PM
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Oh I didn't know. I thought I read something about all Cs in 2008 and up. Anyway, sound like there is either a leak, air leak, or the hydraulic needs to be replaced. I am sure you know that hydraulics are finikey and they need the ideal closed system with everything kosher to work properly. You need to get it check for a leak or failure alltogether.
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Old Oct 13, 2010 | 11:13 PM
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Originally Posted by ZephyrAMG
Oh I didn't know. I thought I read something about all Cs in 2008 and up. Anyway, sound like there is either a leak, air leak, or the hydraulic needs to be replaced. I am sure you know that hydraulics are finikey and they need the ideal closed system with everything kosher to work properly. You need to get it check for a leak or failure alltogether.
Had it at the dealer a few weeks back with the complaint and asked them to check the fluid level. They said it was tip top and there were no leaks. Sounds to me like a bad PS pump or rack.
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Old Oct 14, 2010 | 09:38 AM
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Mines doing the exact same thing.. except its not sporadic, rather every time I get in the car after its been sitting for a while (couple of hours), and I am at a dead stop (ie, pulling out of a parking spot). once I am moving, or the cars been running for abit, I do not notice it anymore. 2009 model as well
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Old Oct 14, 2010 | 09:54 AM
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I get this too every now and then. I think it might be related to the weather because I've never had this until now that it's getting a little colder. It's not every day, though.
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Old Oct 14, 2010 | 12:49 PM
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Originally Posted by jvanbrecht
Mines doing the exact same thing.. except its not sporadic, rather every time I get in the car after its been sitting for a while (couple of hours), and I am at a dead stop (ie, pulling out of a parking spot). once I am moving, or the cars been running for abit, I do not notice it anymore. 2009 model as well
Mine is starting to happen more frequently so maybe soon I'll be able to get a dealer to diagnose it. Right now all I get is Unable to Duplicate Customer Concern.
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Old Oct 14, 2010 | 01:11 PM
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I heard that noise before on my car
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Old Oct 14, 2010 | 02:00 PM
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I would recommend getting the car into a MB dealer as soon as possible. That sounds like a PS pump issue. Since the W204 chassis is going to be recalled I would definately have it take in. Although the vehicle may not fall under the recall guidelines, I would still bring it to thier attention.

Years ago Land Rover had an issue with the front input shaft coming apart on the front axle. This was due to an improperly designed input yoke on the front differential. We saw some cars with this problem that were not covered per the recall guidelines. The cost of the repair was still covered by the manufacturer in order to satisfy the customer. If I was you, I would definately raise a stink about it. After the Toyota recall, the customer's concerns are more apt to being addressed than before.
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Old Oct 14, 2010 | 02:02 PM
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Originally Posted by DJ_VernonJ
I would recommend getting the car into a MB dealer as soon as possible. That sounds like a PS pump issue. Since the W204 chassis is going to be recalled I would definately have it take in. Although the vehicle may not fall under the recall guidelines, I would still bring it to thier attention.

Years ago Land Rover had an issue with the front input shaft coming apart on the front axle. This was due to an improperly designed input yoke on the front differential. We saw some cars with this problem that were not covered per the recall guidelines. The cost of the repair was still covered by the manufacturer in order to satisfy the customer. If I was you, I would definately raise a stink about it. After the Toyota recall, the customer's concerns are more apt to being addressed than before.
Already tried that. NPF. Basically, you have to be able to rub their noses in the defect to stand any chance of getting a repair.
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Old Oct 14, 2010 | 04:16 PM
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Originally Posted by HBC350
Already tried that. NPF. Basically, you have to be able to rub their noses in the defect to stand any chance of getting a repair.
This is exactly my experience with warranty repair. Very frustrating.

And yes, my car has this issue, and I have asked the dealer about my steering and they told me everything is fine. So, I assume my car is still up to snuff as far as steering safety goes.

I also notice that my steering is at its smoothest when my tires are inflated to proper psi.
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Old Oct 14, 2010 | 04:30 PM
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Originally Posted by SonnyakaPig
This is exactly my experience with warranty repair. Very frustrating.

And yes, my car has this issue, and I have asked the dealer about my steering and they told me everything is fine. So, I assume my car is still up to snuff as far as steering safety goes.

I also notice that my steering is at its smoothest when my tires are inflated to proper psi.
Everything is always fine, until it isn't. I find it funny that they can tell you it's no big deal while at the same time they can't tell you what it is. How is that? I have no idea what is causing your problem, but I can assure you it's nothing that could be a safety issue.
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Old Oct 14, 2010 | 05:52 PM
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mine kinda of creaks moans but i thought it was just the tires on the ground transferring friction
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Old Oct 14, 2010 | 06:31 PM
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Originally Posted by HBC350
Everything is always fine, until it isn't. I find it funny that they can tell you it's no big deal while at the same time they can't tell you what it is. How is that? I have no idea what is causing your problem, but I can assure you it's nothing that could be a safety issue.
Haha! Good logic.
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Old Oct 14, 2010 | 06:54 PM
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same intermittent issue since day one and dealer shrugs it off because they cant replicate it.
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Old Oct 14, 2010 | 07:02 PM
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same issue here but my car does this only when turning left and under 40F

im on my 3rd p/c pump and this started to happen once the 3rd one got installed.

Last edited by mthis; Oct 14, 2010 at 07:06 PM.
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Old Oct 14, 2010 | 08:27 PM
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I get this once and awhile also when the car sits for awhile.
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Old Mar 6, 2012 | 04:18 PM
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Bump.

Still there. 30K miles. Hydraulic moan when pulling away from a curb, worse when cold. My kids laugh when the hear it 'cause they know it pisses me off!
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Old Mar 6, 2012 | 06:46 PM
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Originally Posted by HBC350
Bump.

Still there. 30K miles. Hydraulic moan when pulling away from a curb, worse when cold. My kids laugh when the hear it 'cause they know it pisses me off!
You know what would fix it? Long-tube headers.

In all seriousness, I just had this problem with my C32. Turned out to be a failing P/S pump and tank - both needed to be replaced. Good as new, now.
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Old Mar 6, 2012 | 10:34 PM
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my new 2011 just did this for the first time, I was leaving to work in the morning pulling out of my garage. Haven't heard it since hope its not a regular occurrence
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Old Mar 7, 2012 | 10:37 AM
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Originally Posted by LAMB09
my new 2011 just did this for the first time, I was leaving to work in the morning pulling out of my garage. Haven't heard it since hope its not a regular occurrence
If it did it once it'll do it again. Just often enough for you to shake your head and laugh. Part of the deal. If all we wanted was to just put the key in and go, we'd all be driving a Camry.
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Old Mar 7, 2012 | 12:11 PM
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I think I read that the 2012 MY has a different/new PS set up.
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Old Mar 7, 2012 | 02:53 PM
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Originally Posted by Pit-Pony
I think I read that the 2012 MY has a different/new PS set up.
I believe it is electric to save load on the engine and increase fuel mileage figures.
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Old Mar 7, 2012 | 05:43 PM
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C63s now in the garage. Sold-GLA45 AMG Edition 1, Sold-2010 Mercedes C63
This happened to me on my 2010, Ended up being the high pressure power steering hose. They replaced everything to do with my steering including my entire rack before figuring out the problem.
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