Humming while driving - Mercedes-Benz Forum

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post #1 of 9 (permalink) Old 04-11-2007, 05:04 AM Thread Starter
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Humming while driving


I have an 01 C Class with 48K miles. Low miles but I am hearing a "humming/ low vibrating" noise only when the car is rolling. I hear the sound if I am slowing to a stop as well as going 75 mph. The sound does NOT increase with left or right turns AND furthermore..... I don't always hear it. I am unsure if it's from the front or back of the passenger side but its definetly on "that side". ANY CLUE? Thanks anyone.
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post #2 of 9 (permalink) Old 04-11-2007, 06:04 AM
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hey belize, sorry for the off topic question but do you live in belize? i visit there everyother year and was just wondering.... my good friend has a resort there and now is running for politcal office, i'm flying down next week to be there for the election.
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post #3 of 9 (permalink) Old 04-11-2007, 07:48 AM
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Turn your radio off or switch channels. Those humming shows on AM radio are annoying.
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post #4 of 9 (permalink) Old 04-11-2007, 11:24 AM
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You might want to repost in the 203 forum for your question.

That said, is the noise constant with road speed or does it vary in pitch as you speed up/slow down?

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post #5 of 9 (permalink) Old 04-12-2007, 10:50 AM
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Likely tires, can be differential going bad.

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post #6 of 9 (permalink) Old 04-12-2007, 10:55 AM
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could be a bad fuel pump....

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post #7 of 9 (permalink) Old 04-12-2007, 12:06 PM
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Do you have Goodyears?

Kent Christensen
'07 GL320CDI
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post #8 of 9 (permalink) Old 04-13-2007, 07:50 PM
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post #9 of 9 (permalink) Old 04-15-2007, 08:40 AM
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LOL my benz sings , but only after I taught it all the words .
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