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Humming Noise

fafa Apr 16, 2018

  1. fafa

    fafa Member

    My Dad was driving with me on a long journey this weekend and he pointed out that there was an unusual noise coming from the front of the car. It's a whirring/humming noise at the mid range that changes pitch with road speed not engine speed. A bit of online research and I think it might be the wheel bearing, is there any other thoughts on what it might be?
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  3. Jakes2514

    Jakes2514 A6 C7 AllRoad 3.0 TDI - Ibis White Audi A6 Audi Avant Owner Group quattro TDi

    Depends on the humming but you are correct at looking at the final drive train, one thing also to consider is the covers on the bottom of certain cars. These sometimes come loose and start ‘catching’ the wind and vibrate accordingly. Simple to check bu getting under the car and having a look, while under there check the CV boots for cracks/leaks

    If its a wheel bearing it can be checked by checking the heat of the wheel once a journey is completed. A bearing that is going will start to produce more heat as friction increases, compare the opposing side wheels. Not a absolute accurate check but it worked for me in a Golf I used to have.

    Sent from my iPad using Tapatalk
  4. fingermouse

    fingermouse thats me

    Just done a wheel bearing on our bitdi
  5. jetty

    jetty Active Member Team V6 Audi A6 Audi Avant Owner Group Black Edition quattro S-line owners group

    How much tread is left on your tyres ?
    If you are getting low I would replace those first (check tracking as well) - then look at bearings.
  6. fafa

    fafa Member

    Update. It's in with the local garage for the ecu light from my other thread and he's said that this noise is the bearing. 160 to replace inc Vat. With the pump costing similar a couple of months ago I'm starting to wonder if it's time to change and put the extra I'm paying out in repairs towards a high monthly on a newer car.

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