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  1. #1
    warren_S5's Avatar
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    Question Can anyone guess what this is?

    Afternoon all; I'm after a bit of wisdom and knowledge as I can't work out what this part is:



    The bit in the red circle. If you look into the engine bay head on, it's directly behind the high pressure fuel pump.

    The plastic cap at the head of the metal unit has broken (possible due to excessive heat / cooling / vibration), and whilst I've managed to cobble it back together with tape, cable ties and a bit of 'jedi' I doubt it will last long. Unfortunately the cheap bit (loom connector) looks to be fine.

    Unit will have to be replaced in full as the plastic connector is an integral part of the unit, there are 2 metal prongs inside it. The unit bolts straight to the top of the engine. No doubt it will be expensive, but saving grace is it looks DIY as there are only 2 (fairly accessible) screws holding it in place.

    Answers on a postcard....

    Cheers

    Warren
    Audi S5 3.0V6T Coupe Black Edition

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  3. #2
    Top Gear!

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    Im not 100% on this but I think it may be something to do with the ECU, my old golf had something that looked similar to that and when it was removed the power disappeared, don't hold me to it xD but i think thats what it looked like

  4. #3
    warren_S5's Avatar
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    Quote Originally Posted by Stiggles View Post
    Im not 100% on this but I think it may be something to do with the ECU, my old golf had something that looked similar to that and when it was removed the power disappeared, don't hold me to it xD but i think thats what it looked like
    Hmmm, if that is the case, I suppose I better not risk it. I'm about to do a 800 mile round trip and this crops up. I suppose I'd better head round to Audi Parts and take my trousers down as I don't want to be stranded 400 miles from home which is where if it goes wrong, its going to happen.
    Audi S5 3.0V6T Coupe Black Edition

  5. #4
    S3RYE's Avatar
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    Quote Originally Posted by warrencox View Post
    Hmmm, if that is the case, I suppose I better not risk it. I'm about to do a 800 mile round trip and this crops up. I suppose I'd better head round to Audi Parts and take my trousers down as I don't want to be stranded 400 miles from home which is where if it goes wrong, its going to happen.
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  6. #5
    Ash B's Avatar
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    Not too sure what it is myself, but hope you get it sorted soon with no hassle and its to expensive.

    Quote Originally Posted by S3RYE View Post
    dont forget the vaseline!!
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  7. #6
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    Not 100% sure but I think it's the camshaft control valve. Part number 06F 109 257 A

  8. #7
    warren_S5's Avatar
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    Supposedly its a variable valve timing sensor (according to the Audi tech).

    The parts & service guys asked for a look under the bonnet as they couldn't work out exactly what I was asking for. When the saw the mods under the bay lets just say I got the usual gurning face of disapproval because there were unexpected pipes, sponges and bits other trinkets that they weren't expecting. Initially I did think the service tech was having an epileptic fit, but then I realised the disapproving facial gestures are one of the unique ways that Audi UK franchises condescend their customers who choose the path less ordinary (e.g. modification). I hadn't been into a dealership for a while and had forgotten how astute they were at it!! That said he seemed knowledgeable enough, so I can't complain.

    The service guy has just called me with a price of Ł61.52+VAT, so it's bought and will be fitted ahead of the mammoth journey! Shame as it's only a bloody crack in the plastic clip on the top of it, but it puts a fair bit of stress on the two metal prongs inside, and if it was to break I'm not sure I'd want the VVT systems not working!

    For higher mileage cars maybe just worth a check to make sure yours is OK, especially if you've removed your engine cover quite often, or fitted an intake (and potentially exposed this part to any stresses as it was incredibly hot when I just touched it).
    Last edited by warren_S5; 6th October 2010 at 16:00.
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  9. #8
    chrissy1502002's Avatar
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    Quote Originally Posted by warrencox View Post
    Supposedly its a variable valve timing sensor (according to the Audi tech).
    100% correct, i had to replace mine about a month or so ago.
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  10. #9
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    Would it not have been better to go down the independent specialist route?
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  11. #10
    PH1L's Avatar
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    its the vvt aka knock sensor for timing


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