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Where might i find the coolant temp sensor ?

Discussion in 'A3/S3/Sportback (8P Chassis)' started by Biggs, Nov 17, 2012.

  1. Biggs
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    Biggs Member

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    [Nov 17, 2012]
    Im going to have ago at changing this today, to see if it helps to get the temp sitting at 90. I fear it may be a thermostat problem, but for the sake of £8 i think i'll try this option first.

    Anyway, it's a 2 litre tfsi quattro. Anybody give me a clue where to look for it ?

    Cheers
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  3. AndyParker
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    AndyParker Active Member

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    [Nov 17, 2012]
    What year is it mate?
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  4. Biggs
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    Biggs Member

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    [Nov 17, 2012]
    Sorry forgot to mention its an 06.

    Cheers
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  5. AndyParker
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    AndyParker Active Member

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    [Nov 17, 2012]
    Haynes manual says its located on the thermostat housing at the left hand end of the cylinder head
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  6. Biggs
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    Biggs Member

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    [Nov 17, 2012]
    Thank you.
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  7. Minstadave
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    Minstadave Member

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    [Nov 17, 2012]
    It's not there. You have to take the engine cover off and its between the block and the battery housing on the right. I changed mine last week.

    Audi wanted £30 for the sensor, you also need the O-ring which is a quid or two.

    This is the guide I used:

    DIY: Replace your Engine Coolant Temperature Sensor (FSI) - VW GTI Forum / VW Rabbit Forum / VW R32 Forum / VW Golf Forum - Golfmkv.com
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  8. Biggs
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    Biggs Member

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    [Nov 17, 2012]
    Awesome thanks for your reply, I already bought the sensor from euro car parts, but didn't realise there was an o ring to replace aswell.
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  9. Minstadave
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    Minstadave Member

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    [Nov 17, 2012]
    It's useful to have the o-ring as when you pull the old sensor out the coolant will start pissing out. If the new sensor already has the o-ring on you can whip out the old and put the new one in straight away and you won't make too much of a mess.

    If the o-ring doesn't come out with the old sensor just stick a finger in and pull it out, then pop the new one in. Make sure your engine has cooled down a bit or you'll regret it.

    Careful with the retaining clip, if you're too heavy handed it'll snap. I used a screwdriver to push it backwards and it popped off without breaking.
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  10. wuta3
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    wuta3 Well-Known Member

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    [Nov 17, 2012]
    :( Good luck, I still have a bottle of G13 and a thermostat waiting to fit ...
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  11. OVRA3
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    OVRA3 Well-Known Member

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    [Nov 17, 2012]
    I have a feeling it might be the stat just had mine done, think its very common. Mine just wouldn't hold 90 unless in traffic and on a run it would drop right down to 70..
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  12. NHN
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    NHN Retrofitter - Audi - VW - Skoda - Seat Site Sponsor VCDS Map User

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    [Nov 18, 2012]
    Lucky its not the tdi bkd version front dead center, its a fecker to get to & swap out.
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