C55's: anybody replace their power steering pump yet?
09-02-2013, 01:05 PM
#1
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C55's: anybody replace their power steering pump yet?
I have a slightly annoying whine in the car when accerlerating. The first time this happened years ago it was the idler pulley ($15, can't beat it). This time probing around it sounds like it's faintly coming from the power steering pump. I'm assuming a bearing in there is starting to go slowly. At 120k miles; has anybody replaced their pump before, and if so, for what reason/what were your symptoms? It's a $400 part, so I want to be sure.....
09-02-2013, 03:18 PM
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ive noticed a whine when I go full deflection to the left or right during a turn...but never get a noise any other time...
09-02-2013, 11:07 PM
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C32/C55 AMG
You can rebuild the pump for 20 dollars and you don't even need to take off the whole pump. Search for diy power steering pump over haul. Easy to do and cheaper than a new pump.
09-04-2013, 08:52 AM
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Porsche 2004 911
I bought the kit and gave it to the indie. Rebuilt and happydays.
Last edited by macbryanie; 09-05-2013 at 02:43 AM.
09-04-2013, 07:22 PM
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C32/C55 AMG
Here's the DIY I did a while back for the C32. https://mbworld.org/forums/c32-amg-c...-overhaul.html . Just check to see that the pump looks similar. Take in mind I used a seal kit from a 90's Mercedes so it should be the same for the C55.
09-05-2013, 02:42 AM
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Here's the DIY I did a while back for the C32. https://mbworld.org/forums/c32-amg-c...-overhaul.html . .
Will take this opportunity : Thanking you 'loudandheard'
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09-05-2013, 08:45 PM
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C32/C55 AMG
If you look closely, there are no parts that are damaged and there are vary few parts total. You have the pulley portion of the pump that has a long shaft, the impeller which has 10 blades, the portion that goes around the impeller, the portion that goes on top of the impeller, and then the two halves of the pump. There is no bearing or any thing that goes bad, besides the seal.
There's a total of 7 large parts and 16 small parts including gaskets and clips.
There's nothing that could go bad, the only thing I can think of that could have been causing the bubbling, is that you were getting air in to the system.
I remember you saying that you may still have a problem with your pump, but maybe it could be the steering rack. Next step will be to do a DIY for that next, lol.
There's a total of 7 large parts and 16 small parts including gaskets and clips.
There's nothing that could go bad, the only thing I can think of that could have been causing the bubbling, is that you were getting air in to the system.
I remember you saying that you may still have a problem with your pump, but maybe it could be the steering rack. Next step will be to do a DIY for that next, lol.
Last edited by loudandheard; 09-05-2013 at 09:11 PM.
