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1999 ML320 and 2009 E350
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Discussion Starter #1
Two weeks ago I bought a brand-new 2009 E350. After putting 500 miles I just started to hearing a noise from under the hood after parking the car in the garage about one hour to 1 1/2 hours. The sound comes on every 15 to 20 second and last up to 3 plus hours. According to the dealer this is normal when air-conditioning unit trying to do some kind of decompression.

My question is if this normal to all E350 why they don't have it in the manual.
Also if it's aircondition then it shoud happens everyday right? but I don't here that every day.

Does anyone have this problem?

note: I have the sound.wav file but I don't know how to attach to this.


thanks,
 

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Registered
1999 ML320 and 2009 E350
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98 Posts
Discussion Starter #3
I noticed the same sound from my 2009 E350.

Its looks to me a design flow.

60000 dollar car doing this annoying sound. If you listen to the sound at some point it feel like its going to explode.

I hope they will have some fix soon.
 

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I have a similar noise on my 2006 E200T Kompressor. The MB workshop heard it too and they agree it shouldn't be there, but they have no clue what may be causing it.

Did either of you find out exactly what is causing the noise and/or get the problem resolved?

Thanks
 
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