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what is this part making the noise - pics inside

Discussion in 'A3/S3 Forum (8L Chassis)' started by Jonesy, Jun 7, 2007.

  1. Jonesy
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    Jonesy Member

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    [Jun 7, 2007]
    Quite often after a longish journey when I turn off the engine I get a weird hissing and bubbling noise coming from the part in the pic, it’s quite loud and lasts a good few mins. What is it, is it the water pump? My last head cracked due to lack of water the garage told me, that cost 1400 to fix along with other bits. Don’t want it to happen again if this small part is the culprit I want to get a new one asap. Btw car has never overheated but then again the sensor could be broken wouldn’t supprise me!

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    #1
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  3. Defratos
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    Defratos You’re Dethpicable!!

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    [Jun 7, 2007]
    Isn't the noise the Turbo timer? as far as I know that's the noise that stays pumping oil through the turbo/engine before switching it off? Not sure how it looks like but it is from the same area.
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  4. mordz
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    mordz Audi S3 (2000)

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    [Jun 7, 2007]
    as far as i know thats the pump that pumps oil round the turbo after the engine goes off. i can here mine bit it sounds smooth. the old one went a few months ago and thats what the garage told me it was
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  5. Jonesy
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    Jonesy Member

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    [Jun 7, 2007]
    ohhhhh, well mine does sound a bit dodge so probably needs replacing, any idea on price? doesnt look too hard to fit a new one
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  6. Jonesy
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    Jonesy Member

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    [Jun 7, 2007]
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  7. Bellic
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    Bellic Member

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    [Jun 7, 2007]
    yep circulates coolant when engines switched off
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  8. ChriS3
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    ChriS3 hud at ye bam

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    [Jun 7, 2007]
    I thought that bit in the photos was the Air Con thing. Do you run the car in ECON or is the AC on all the time?
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  9. simch
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    simch Active Member

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    [Jun 7, 2007]
    looks like the after run turbo coolant i'm pretty sure. may have an airlock in the system.....?
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  10. Defratos
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    Defratos You’re Dethpicable!!

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    [Jun 7, 2007]
    I hardly ever use ECON, is that bad? I know it uses less petrol
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  11. nky_84
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    nky_84 6th Gear

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    [Jun 7, 2007]
    I thought this was the electric water pump...
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  12. claudefrog
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    claudefrog Member

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    [Jun 7, 2007]
    its an electric water pump that runs for 10mins after engine is switched off
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  13. ADP
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    ADP Member

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    [Jun 7, 2007]
    You should use your aircon regularly otherwise it will stop working, seriously needs a good session at least once a week
    #12
  14. Jonesy
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    Jonesy Member

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    [Jun 7, 2007]
    eerrrmmm so guys what is it the turbo cooler or electric water pump, i always use aircon, never used econ, may try it out later.
    #13
  15. Bellic
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    Bellic Member

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    [Jun 7, 2007]
    electric pump which circulates water i think throught the system.
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  16. nick-barnes07
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    nick-barnes07 Member

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    [Jun 7, 2007]
    it is meant to do that , i think it is the secondary water pump
    #15
  17. S3-ROB
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    S3-ROB RD350YPVS - Loves 2 stroke oil

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    [Jun 8, 2007]
    As above,called an after run pump, its normal for it to make a noise, only worry if it does not make a buzzing noise after the engine has been run :icon_thumright:
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  18. Jonesy
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    Jonesy Member

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    [Jun 8, 2007]
    that puts my mind at rest cheers m8y at least it one problem i can tick off the list.
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