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  #1  
Old 11-21-2005, 06:45 PM
MLTodd
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ML 320 Front Prop Shaft issue

I am getting a squeaky, almost chirping noise from my front area. My tech has narrowed it down to the front shaft and says that it has seperated internally and is causing it to be out of balance this causing a squeaking noise at the joints and or seals. Is this possible? Also, I recently (about 3 months ago) had some exhaust work done and they claim that they may have used a pry bar against the front shaft and caused the problem. I thought shafts were stronger than that. Any thoughts?

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  #2  
Old 11-21-2005, 08:40 PM
t walgamuth's Avatar
dieselarchitect
 
Join Date: Apr 2005
Location: Lafayette Indiana
Posts: 35,562
well

a pry bar against the front driveshaft would be a bad thing to do and hard to believe any decent mechanic would do such a stupid thing. but it seems possible at a muff shop. i would look closely at the ds and see if i could spot a dent. if you can show that they did it they should replace the ds. no repair possible on that, i would think.

tom w
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  #3  
Old 11-22-2005, 08:28 AM
MLTodd
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ML Prop Shaft

Does anyone know where i can go online to view parts daigrams for the ML 320?
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  #4  
Old 11-22-2005, 09:16 AM
I told you so!
 
Join Date: Jun 2002
Location: Motor City, MI
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It doesn't exist -- I've tried.
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Old 11-22-2005, 09:44 AM
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Location: east coast
Posts: 1,255
Startek wouldn't have that info?

I have no idea just asking
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  #6  
Old 11-22-2005, 04:33 PM
supradupe's Avatar
98 ML320
 
Join Date: Aug 2000
Location: North Shore, IL
Posts: 253
Quote:
Originally Posted by MLTodd
I am getting a squeaky, almost chirping noise from my front area. My tech has narrowed it down to the front shaft and says that it has seperated internally and is causing it to be out of balance this causing a squeaking noise at the joints and or seals. Is this possible? Also, I recently (about 3 months ago) had some exhaust work done and they claim that they may have used a pry bar against the front shaft and caused the problem. I thought shafts were stronger than that. Any thoughts?
The front end chirping/squeaking sound is more than likely coming from the water pump impeller. That the bearing inside the water pump is shot and caused the impeller inside to spin out of balance and scraping your timing cover. Check your coolant reservoir/expansion tank to see if there is any metal fines in it. If you have not checked it periodically, the cooling normally is yellowish. You will see the expansion tank gets darker and darker as time goes by (because of the grinding, therefore metal fines produced). I have a 98 ML and the same sound appeared during the summer this year. It would come and go but I noticed that the expansion tank got darker and darker and I figured that there was a problem. Check also the area under the water pump to see if you have any brownish liquid on floor or around the bleed hole of the water pump. If you have not replaced the water pump, I highly recommend you to replace it asap to prevent further damage. I have posted some pictures in the ML forum, do a search on water pump and you should find them.
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Old 11-22-2005, 04:35 PM
supradupe's Avatar
98 ML320
 
Join Date: Aug 2000
Location: North Shore, IL
Posts: 253
Quote:
Originally Posted by MLTodd
Does anyone know where i can go online to view parts daigrams for the ML 320?
Try ebay, they sell some bootleg copy for like $40, great stuff. every thing you need to know about your Benz is there.

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