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Thread: A6 C7 whining gearbox

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  1. Re: A6 C7 whining gearbox 
    #11
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    I'm a mechanic myself and it sounds like a differential noise in my opinion, I'd be interested to see if anyone has cured this or if it's just a characteristic of this car
     
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  2. Re: A6 C7 whining gearbox 
    #12
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    Exactly the same here mate. Happens just while fluttering the pedal, but seems to go away if I floor it. I love the car, but I'm seriously looking to change it if audi cant get to the bottom of it as it drives me and the wife bonkers. Constantly listening out for it and not what you'd expect from a quality car. I was pretty sure it was some kind of boost leak, but after having it in 3 times and turbo changed over it's looking like gearbox issue. All under warranty thankfully
     
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  3. Re: A6 C7 whining gearbox 
    #13
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    I've got 2 months warranty left on mine too so probably better get it booked in soon, I've just driven from Edinburgh to Paris and it's drove fine but the noise is becoming a worry
     
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  4. Re: A6 C7 whining gearbox 
    #14
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    Hi, Has anyone got any further with this? I have a C7 A6, 3.0Tdi with the 6-speed manual gearbox and i am getting exactly the same (i think) noise, road speed dependant, between about 60 & 75 in 6,5 or 4th (not tried 3rd), while 'cruising'. Same as the OP, if you lift the noise goes away briefly then returns with a slightly descending tone, down to about 60 then is inaudible below that. build up the speed again to 70 and cruse its back and very irritating in such a quiet car
    I have taken the car to my local audi dealer & they can hear the noise, but can't work out what it is. Every mechanic i ask says diff/gearbox, which is my thoughts too. it continues if you de-clutch, and it doesn't depend on steering angle so its not a wheel bearing.
    I need to get this nailed before my warranty runs out. any help appreciated! and if you know of a good place to go in Cambridgeshire for a diagnosis please do tell. The message i got from my audi dealer is "we don't want to just go throwing parts at it".... Well, i would say, "you can diagnose it" or just start randomly replacing bits!!

    2013 A6 (C7) 3.0Tdi V6 6-Sp Manual Avant 30000mi on the clock
     
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  5. Re: A6 C7 whining gearbox 
    #15
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    Hi mate...I had nine it at audi for a fortnight and got it back last week. Basically told me it is a characteristic of the manual boxes and the noise is "normal"! They techs agreed that the noise is there and narrow narrowed it down to transmission. It's the fourth time I've had it in. Cant say I was very chuffed over the phone and equally raging when I went into collect the car. Asked to have it raised with audi uk as an official complaint. Not great to thi k they have designed an executive car that you want to drive into a tree every time you get up through the gears. Warranty on mine is up in a month but looks like I either live with it or sell it on...
     
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  6. Re: A6 C7 whining gearbox 
    #16
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    Hi Philip, I'll be spitting feathers if i get told that!!! Mines going in next Thurs to have this 'investigated' again, in the mean time i've booked it in with an independent VAG specialist for next Tues. They are going to provide a report for me, i'll update here with details when i get them. I have also been for a drive with a friendly mechanic today and he quickly came to the same conclusion - transmission/diff. No way is this a "normal" sound for any car/gearbox, especially as you say, it is an 'exec' car, its just unacceptable mate! i hope you get some progress. I elevated it today already with audi uk warranty, have you tried them yet direct yourself? 0800 699888 (option 5)
    Cheers,
    Carl
     
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  7. Re: A6 C7 whining gearbox 
    #17
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    Sounds like a viscosity issue as the oil thins .

    What's the VW gearbox oil spec ?
     
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  8. Re: A6 C7 whining gearbox 
    #18
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    Hi Carl...I haven't elevated it with Audi uk yet..I'll be getting in touch tomorrow though as the Audi dealership I used are clearly not interested in helping and have failed to get back to me..cheers for the info. It would be great to get a solution to this as, it's been dragging on for 2years odd now
     
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  9. Re: A6 C7 whining gearbox 
    #19
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    Gaz....definitely sounds worse when there's a good heat in the car. Not sure what oil spec is for the gearbox on these
     
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  10. Re: A6 C7 whining gearbox 
    #20
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    If you are still having issues with it, speak with the motor ombudsman as they were able to help me resolve an issue with my other car. As soon as I informed the main dealer thee car was in that i was raising a case with them, things started to happen and work in my favour.
     
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