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whining noise 2.0 tdi

Discussion in 'A3/S3/Sportback (8P Chassis)' started by vw754, May 3, 2010.

  1. vw754
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    vw754 vorsprung Durch Technik

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    [May 3, 2010]
    The A3 is making a whining noise(FOR A FEW MONTHS NOW) (not whistleing....definatley whining) even at 15mph, could it be the egr ?
    dont think its the turbo(hope not !) If im parked up stationary for a minute it will go away,then after a minute or so when i blip the throttle the noise is back....it stays whining at any speed i drive at and its not very loud..and it does sound like a police siren (but not loud) but enuf for my passengers to say whats with the siren ! no loss of power or anything,drives/starts/runs all ok.
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  3. SAiLO
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    SAiLO Enthusiast VCDS Map User

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    [May 3, 2010]
    I had that problem, could hear the whine even through the exhaust.
    In my case it was the turbo, all noise gone after a new unit got fitted.
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  4. devonmikeyboy
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    devonmikeyboy As far from JBS as possible !

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    [May 4, 2010]
    Does sound like typical turbo dieing syndrome.
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  5. vw754
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    vw754 vorsprung Durch Technik

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    [May 4, 2010]
    am i waiting for it to go bang then...lol ! will it knacker the engine or shud i just wait and when turbos gone just replace that?
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  6. Blackie
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    Blackie Active Member

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    [May 4, 2010]
    I,ve got that noise on my A3 as well. Very slight noise & keep thinking its a police siren. Its only done 37000 miles

    Even the wife though it was the police the other day
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  7. devonmikeyboy
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    devonmikeyboy As far from JBS as possible !

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    [May 4, 2010]
    If it is a turbo problem it might blow next time you drive it or it could last another 20-30,000 miles etc. When the turbo dies usually the turbo shaft will break and thats it but depending on what breaks and at what speed there is no guaranty that metal parts from the broken turbo will not fly down the inlet and into the engine killing the engine as well or an oil seal break flooding the engine with oil and hydro-locking it. If it was me and i intended to keep the car i would sort out getting a refurbed turbo or a hybrid unit and get it fitted as the turbo is going to die sometime and usually at some pain in the ass time.
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  8. robby
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    robby Member

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    [May 4, 2010]
    If it is the turbo would it make the noise in neutral when it isn't spinning though?

    The op mentions it makes the noise if he blips the throttle?
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  9. NHN
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    [May 4, 2010]
    Yeap I'd agree with Mike, mine did blow whilst in italy & trust me you would prefer the job of a turbo swap than the clean up of the whole intake system, also luck needs to be on your side if the impellor snaps & parts dont go through to the engine, I knew straight away what it was so shut her down immediately & metal bits got as far as the IC & some lodged into the rubber pipes, but they could very well have gone further, thank god they didnt, but trust me was a pita to do the job especially on axle stands, I'd seriously consider a swap out of turbo unit asap mate if it does indicate it to be this.

    I had to clean oil out of the exhaust system, IC which entailed removing it all aswell including the radiator so new coolant, etc etc, not a job I liked, but certainly learnt alot from that job anyway.
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  10. EvolutionV
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    EvolutionV Member

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    [May 4, 2010]
    My mate had the same problem and it was the turbo that died 6 weeks later
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  11. bambam
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    bambam Member

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    [May 4, 2010]
    So what kind of cost are you looking for for a replacement / reconditioned / new turbo.
    Are there places that offer an exchange service such as that with brake calipers to help offset the cost slightly?
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  12. Dec
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    Dec Member

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    [May 4, 2010]
    How loud is the whistle? Starting to worry about mine now, although its probably just me being paranoid!
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  13. vw754
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    vw754 vorsprung Durch Technik

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    [May 5, 2010]
    not very loud,but more noticeabl with the windows closed ,could be egr...........we all wish!:faint:
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  14. Dec
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    Dec Member

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    [May 5, 2010]
    Hmm pretty paranoid about this, only got warrenty til October. I take it a decent garage would be able to tell if the turbo is on the way out?
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  15. vw754
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    vw754 vorsprung Durch Technik

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    [May 6, 2010]
    if you got warranty til october..........take it to audi !
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  16. SAiLO
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    SAiLO Enthusiast VCDS Map User

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    [May 6, 2010]
    +1
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  17. A3_Rider
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    A3_Rider Active Member

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    [May 6, 2010]
    Haha, I actually slowed down and wondered where they were when I first heard it!:laugh:
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  18. NHN
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    [May 6, 2010]
    Damn if its that bad I'd get it looked at asap.
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  19. Blackie
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    Blackie Active Member

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    [May 6, 2010]
    I did,nt hear it all day yesterday as i was paranoid with what you lot said & i never heard it. but its back very slightly today..
    #18
  20. HIGGINS
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    HIGGINS Member

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    [May 6, 2010]
    Ive had real trouble with mine bought the car around a month ago took it to audi they said its the turbo so took it to the garage where i got it from (they are very good with me) they fitted a brand new turbo and it was great for around a week but now its getting really loud again so i took it to audi and they said its over boosting so the garage is picking it up again tomorrow and they werent really happy with the guy tht ran some diagnostics in the garage there as they said it was very expensive for them to do haha but yeh its going in tomorrow which is good as the engine managment light has just came on :S i might even ask for an extended warranty as they should of fixed it last time but cross my fingers haha ill be gettin a golf plus tomorrow as a courtesy car :(
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  21. devonmikeyboy
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    devonmikeyboy As far from JBS as possible !

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    [May 6, 2010]
    Trouble is when the turbo starts to die sometimes there is a reason for it. Changing the turbo solves the problem but doesn`t fix the reason why it died in the first place. Most dealers i have gone in and probably lots of big chain car stores just remove the problem part and fit new but don`t think or get told/paid to think why the part might have failed to start with.
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  22. NHN
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    [May 6, 2010]
    Totally agree there, but as we know most of these issues on the 8P cars are that the vanes get clogged by the gasses ****, so the fix would be a different turbo design to replace these ones, which wont happen as would require a different engine design aswell huh.
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  23. Sarah's A3
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    Sarah's A3 MODERATOR V6 S3 Hybrid Staff Member Moderator

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    [May 6, 2010]
    I agree with Mikey, I ended up with more than 3 on my A6 and Audi never bothered to find out why it kept doing it! They claimed it could have been over boosting but when that was checked, all was ok. If you get the turbo changed make sure the oil feeder pipe is done too!

    Turbos going is sooo common on 2.0 tdi's (maybe sometimes due to mapping!)
    Last edited: May 6, 2010
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  24. devonmikeyboy
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    devonmikeyboy As far from JBS as possible !

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    [May 6, 2010]
    And thats why i and many other people who don`t want to screw up their turbos remove the EGR valve and put the crank case breather fumes into a seperate filtered breather can ....
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  25. NHN
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    [May 7, 2010]
    After reading your post again & seeing your pics of your old engine I can see what you did now & obviously this gets rid of any oil through the breather on the top from going towards the turbo etc, now it makes sense further, but doesnt any oil get burnt up in the combustion process that doesnt get stuck to the intake mani which I stripped down & cleaned spotless when turbo blew.

    Do you think the breather & the egr were responsible that much for vanes getting clogged, as surely it was the exhaust mani fumes driving the turbo that caused this more, obviously not impossible but as you've done fair bit & probably research, be nice to know your results/experiences as I've only changed mine over, not researched how to stop it happening again.

    So any adverse issues with removing the egr, cant imagine any but have to ask as your engines have been highly upgraded over ours anyway.

    What did Allard do with the vacuum pipe from the solenoid valve block that was on the egr, hinters where they relocated it to mate?

    As this is news to me I'm all ears & if I got it wrong please advise further Mike as keen to learn more about things as you know the BKD's much better than me.

    http://www.audi-sport.net/vb/showthread.php?84003-2-0TDI-Catch-Tank-Other

    [​IMG]
    Last edited: May 7, 2010
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  26. Blackie
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    Blackie Active Member

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    [May 7, 2010]
    Yes

    Could we have more info on this. If its a mod worth doing i,m up for it

    Sorry if its already been covered by the way , ig it has does anyone have a link . Thanks

    PS No whistling this morning. I,m beginning to think i,ve kidnapped Roger Whittaker & he sometimes sleeps & sometimes is awake.
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  27. Blackie
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    Blackie Active Member

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    [May 7, 2010]
    Anyway, at least it does,nt whine as much as Mrs B when i keep buying stuff......
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  28. SAiLO
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    SAiLO Enthusiast VCDS Map User

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    [May 7, 2010]
    AMD Essex do it.

    http://www.amdessex.com/product.details.cfm?ProductID=3882&VariantID=6&ReferenceID=10228



    /////

    Just spoke to AMD and they said they will discontinue supplying & fitting that product, because there were problems with pressurising and leaking oil.
    Last edited: May 7, 2010
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  29. NHN
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    [May 7, 2010]
    I was about to say to you mate, that I wouldnt use that product mainly because it needs a breather filter as per Mikes allard version or it will create pressure & tbh be pointless as the air/oil wont go anywhere.

    I spoke to Allard & they can supply the catch cans, but I'm also discussing the egr removal as the issue with this is, it has the vacuum pipe attached so when this is removed you will get engine lights on dash as the solenoid valve block will see sod all pressure & think there's a fault, the alternative is to provide it with pressure from some other area to counter this light which I have ideas on, but bouncing this of my tuning guy to see if we can dial down the egr expected readings to virtually nil so it doesnt detect any problems.

    Will update when I have further info.
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  30. jars
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    jars Member

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    [May 7, 2010]
    i had a 2005 astra and they had many problems with their egr valve.

    when i had issues with mine i had a look on one of their forums (can't remember which one) and there were a few people who had literally blocked off the egv valve with some sort of metal plate and removed it from the ecu to stop any dash lights coming up.

    the only issues (apparently) were an increase to emissions, but not the sort that are tested on an mot and was talks of slight worse fuel economy.

    no details of any long terms effects though
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  31. NHN
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    [May 7, 2010]
    Yes there are some that have done this, but not all cars are the same as in eg. mine has sensors, valves etc that will possibly bring up dash warning lights & I personally dont want these all the time, the slightly less economy & emissions increase arent a real concern as it would be very minimal overall, but I will not accept the lights.

    I'd rather remove the turbo after a year or so & clean it out then refix, instead of lights all the time as the light that shows in the dash isnt specific to the egr, its for many car problems, so you'd have to check the codes daily to make sure its not anything other than the egr known code thrown, that in itself is a real PITA to check all the time.
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  32. jars
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    jars Member

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    [May 7, 2010]
    fair enough.

    i wouldn't do it simply cos it's there for a reason and would fear something happening to the car/engine.

    is removing the turbo and cleaning it easy(ish) and beneficial enough to do it??

    always concerned with doing stuff like this as had experience with getting things replaced and other things breaking as a result of it!
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  33. bambam
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    bambam Member

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    [May 7, 2010]
    nhn, how would you go about cleaning the turbo?
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  34. NHN
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    [May 7, 2010]
    Then you could argue the same about alot of things with cars, like why audi would set the cars in an uneconomical mapping as such, my mate at AMD Surrey iirc can add 10mpg to a Q7 of sort, afaik there are no drawbacks, now why would audi do that if it wasnt neccessary & make them more beneficial to the owners, same as with these engine bits, why didnt they think about some form of oil recirculation from the breather system so it doesnt clog the intake & turbos as such & we think they're smart lol.

    If you consider the turbo blowing beneficial, then think that says all it needs to mate, lol, I know when mine went I wasnt particularly happy & since it cost me about 2k overall as had to trow back to italy which cost me 350 euros & that was cheap trust me.
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  35. NHN
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    [May 7, 2010]
    I cant remember the liquids etc I used to clean my intake etc parts, but just a degreaser was 1 thing & anything that disolved the deposits, damn what was that turbo cleaner I heard about a while back, they did say stick it into the turbo whilst on the car but few tried & it didnt work tbh, but guess if you used it on the internals it would do the job with some small brush as such just to clean up the mechanism of the vanes to move freely, as thats what kills them huh overall, taking care to check no play in things at the same time I'd say.

    I'm not a turbo specialist, just stands to reason when I took mine of & researched the internals to see if could fix or not, quite surprised how simple a design it was, ingenious tbh with the drawback of the clogging huh.
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  36. jars
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    jars Member

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    [May 7, 2010]
    what i meant was i don't kow enough about the mechanics of a car, or have the confidence to be blocking off stuff like the egr valve, and there is certainly no benefit in blowing a turbo, i meant would it be beneficial to remove and clean the turbo, egr, maf etc!
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  37. NHN
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    [May 7, 2010]
    Mate I understood you no problem, I was just making a point about bloody VAG's ideas on things, uuuuhhhring on side of caution which is what they do is not neccessary the safest way for car owners or the most economical, eg. cars have been RR'd & found to be way over the stock values, say a 140 was showing at say 170 or so, at say iirc AMD & they swore blind the RR was spot on, so makes you wonder if the car was already running over the socalled engine rating in the beginning, which raises warranty concerns later on after the 3yr period is up, does raise eyebrows if it is down to audi if the car hasnt been remapped & is at stock as some have been, if they should pay for the turbo & swapout.

    Yes if the turbo has been on there for a while & you have indeed tuned it for a while, if its the turbo design like mine, then, I'd after mine blew, certainly remove it & clean it up, to insure it didnt have at least this specific problem later on, I mean I could now remove & clean mine & replace in 2 days, prob in 1 tbh with axle stands lol, so its not exactly a ball breaker to do for the peace of mind, but thats of course on my car, every car is different.
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  38. NHN
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    [May 7, 2010]
    Just had a brainwave about the egr removal, breather catch can is a piece of piss tbh as it just literally connects to the top as mikes pic shows & has a breather filter to allow venting of the air so no build up of pressure inside the can.

    But, egr if removed most likely will pull up a dash light, so in discussions with some people about another idea I had to get round this.
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  39. Dec
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    [May 7, 2010]
    Only AA warranty from an independant garage.. so not sure how good it is really.
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  40. devonmikeyboy
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    devonmikeyboy As far from JBS as possible !

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    [May 7, 2010]
    What like the catch can with a breather filter that is plumbed in on the right hand side of it just like the one in the pic of my old engine set up you posted ......:haudrauf:
    #39
  41. devonmikeyboy
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    devonmikeyboy As far from JBS as possible !

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    [May 7, 2010]
    That is a standard Forge catch can and if AMD cannot fit it without pressurizing ( which there shouldn`t be any to speak of as it a re-circulating catch can not pressurized ! ) or leaking oil then maybe they should go back to college.
    #40

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