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Mk3 TDI Engine Vibration/ Noise

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  • Mk3 TDI Engine Vibration/ Noise

    Hi

    Do any of the Mk3 TDI owners on here have an intermittent engine vibration in the car around idle?

    It comes on more when you put your foot on the brake and/or turn on the head lights, so when there is a power drain on the battery? - not sure why this would be? With aircon it goes away

    Also there seems to be a band between 1200 and 1400 rpm where there is alot of vibration from the engine overall - is this normal for the 1.9 TDi?

    This vibration comes through to the cabin

    Thanks

  • #2
    likely you have a worn accessory belt tensioner. they are available new. could also be worn engine mounts (very likely in a 10-15 YO diesel car). loos accessory belt will cause all kinds of funny harmonics. when you turn the a/c on, the ECU increases the idle a couple of hundred rpm, and also the extra load on the belt will cause the tension side of it to tension up a lot, which can stop some vibration.
    '07 Touareg V6 TDI with air suspension
    '98 Mk3 Cabriolet 2.0 8V
    '99 A4 Quattro 1.8T

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    • #3
      yes mine does the same vibrations around idle, not sure about the vibrations at 140 into the cabin, never notice it. As I have always driven diesels (apart from a terrible foray into petrol Barinas which we nicknamed the Gutless Wonder cos you wonder where the power is!) I am probably more used to noises from the engine particularly around idle and low revs. Might check the accessory belt tension too.
      Mk3 Golf Tdi about to sell
      Mk 1 Golf GLD somewhere in a paddock!
      Mk1 Golf Cabriolet
      MK2 Golf Turbo diesel engine and 5 sp gearbox

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      • #4
        Probably engine mounts. THose cars are renowned for it.
        Replace all 3 mounts with VR6 ones is my advice.
        sigpic Camden GTI Performance. VW / AUDI Specialists
        All Mechanical Work, Log book Servicing, New and used Parts and Imports
        19-20/6 Badgally Road, Campbelltown, 2560
        02 4627 3072 or 0423 051737 www.camdengti.com

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        • #5
          Thanks for your feedback guys

          Appreciated

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          • #6
            Countless things on these things cause vibs and are common IMO. Aux pulley tensioners, harmonic balancers are also common. Got to watch with the engine mounts what you choose as they can tend to cause more vib feedback.
            pm sent
            Jmac
            Alba European
            Service, Diagnostics and repairs. Mobile Diag available on request
            Audi/VW/Porsche Factory trained tech 25+ yrs exp
            For people who value experience call 0423965341

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            • #7
              I dunno how bad urs is but im used to the diesel rattle and heaps of things making noise.

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