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2012 E350 4Matic Wagon P2 Lane Tracking Driver Assit. Heated/Ventilated/Multicontour*/Leather seats
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262 Posts
Discussion Starter #1
My car growled at my today and I've been so nice to it.

I opened the drivers door and heard a growl from under the hood. I guessing SBC pump.

I hadn't noticed this noise before. Is this normal or a sign there may be a problem.
 

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Purple Moderator
99 ML430, 00 ML320, 05 E500 4matic Wagon
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22,126 Posts
I have it happen. If you want to quite it down there is dampener hose update that can knock the sound
down by 60%.
 
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