SBC Problem with 2006 E350 - Mercedes-Benz Forum

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post #1 of 3 (permalink) Old 05-07-2009, 07:08 PM Thread Starter
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Date registered: May 2009
Vehicle: 2006 Mercedes E350
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SBC Problem with 2006 E350

I purchased a 2006 E350 from a Mercedes Dealer exactly 10 days ago (under warranty till the end of the year) and right away I couldn't figure out what the loud noise was I kept hearing. From the moment I'd unlock the doors repeating sometimes as often as every 45 seconds. On a 10 minute drive I'll probably hear it on average 7-10 times. I thought it was the CD player trying to load discs.

Today when slowing down the braking was weird - kind of a pump/release feeling - not sure how to describe it but it just didn't seem right.

Finally, an hour ago, I realized the sound was coming from the SBC and I find this wonderful site "BenzWorld" and see that others have reported problems with their SBC in the past.

I'm going to bring in to the service dept. tomorrow but now I wish I'd gone for the 08 C300 instead.
AndyG1 is offline  
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post #2 of 3 (permalink) Old 05-08-2009, 11:28 AM
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You probably want to post this in the w211 forum for a faster response
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post #3 of 3 (permalink) Old 05-08-2009, 08:03 PM
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Date registered: May 2005
Vehicle: '07 GL320CDI
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The noise is normal and NOT a problem.

The frequency may be, as it's usually heard maybe twice per drive, i.e. at beginning and then at end.

There is a replacment hose designed to dampen the noise a bit, but it doesn't make much change. It's a DTB and free to those still under warranty (not the 10-year extension).

Kent Christensen
'07 GL320CDI
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