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Strange buzzing from behind dash

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  • 06-07-2007 12:10am
    #1
    DJ Hafez
    Registered Users Posts: 948 ✭✭✭


    My uncle has a 01 C-Class Merc and recently there has been a strange buzzing from somewhere behind the dash/under the bonnet. It only happens when you are going at about 25mph+ and dissapears when the steering wheel is turned to the left.As you accelerate, the pitch of the buzz also goes up. He has asked a few mechanics but they don't seem to have a clue. Anyone have any idea?


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    #2
    peasant
    Registered Users Posts: 17,819 ✭✭✭✭peasant


    Could be everthing and anything mechanical or electrical.
    Another suspect would be something caught/stuck/loose somewhere that vibrates in the airflow as you drive.


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    #3
    mike65
    Closed Accounts Posts: 88,978 ✭✭✭✭mike65


    Clueless Mercedes mechanics, Shurley not? :)

    If it dissapears when turning left and pitch increases with speed then its proberly something linked to the wheel hub/bearing area. So its not behind the dash. It could be something as obvious as a slight rubbing contact. Does the car have dust sheilds behind the brake calipers, could be the ABS wire or brake wear sensor wire rubbing?

    Mike.


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    #4
    templetonpeck
    Closed Accounts Posts: 364 ✭✭templetonpeck


    DJ Hafez wrote:
    My uncle has a 01 C-Class Merc and recently there has been a strange buzzing from somewhere behind the dash/under the bonnet. It only happens when you are going at about 25mph+ and dissapears when the steering wheel is turned to the left.As you accelerate, the pitch of the buzz also goes up. He has asked a few mechanics but they don't seem to have a clue. Anyone have any idea?
    There could be a leaf (or perhaps bee in your case ;) ) stuck in it. Happened to me before (though not with a Merc) and I was sooo embarrassed to realise it was a flippin leaf :o


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    #5
    DJ Hafez
    Registered Users Posts: 948 ✭✭✭DJ Hafez


    Well he has taken apart alot of random pieces to look for it and nothing. Ill say about te brake wire seonsor/abs wire though. Not sure if he would have checked that.

    More suggestions appreciated :D


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    #6
    woodseb
    Registered Users Posts: 876 ✭✭✭woodseb


    DJ Hafez wrote:

    More suggestions appreciated :D


    sounds like he has a bee in his bonnet;)


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    #7
    templetonpeck
    Closed Accounts Posts: 364 ✭✭templetonpeck


    woodseb wrote:
    sounds like he has a bee in his bonnet;)
    You should be banned for that :rolleyes: :D


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