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  1. #1
    RPB
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    S3 coolant level, thoughts please.

    Hi all,
    I have had my S3 now for just over a year (wow, that has flown!) and the coolant level was on the minimum line of the expansion tank so I put in some more Audi stuff (ffs, how much?)
    I cannot see any leaks, so over time where is this going? LOL. Even though it is supposedly a sealed system and the additives change the boiling point, etc, does it still evaporate?
    Now don't get me wrong, having a car thats done 12k miles over a year and only having to fill up from min to max does not worry me, it is more of a "where the hell does it go?" type question.
    2011 61 plate S3 SB BE DSG - Shark Stage 1 + DSG

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  3. #2
    thebambam's Avatar
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    I think its just boiling away ie steam I guess. Assuming the quicker you go the hotter it gets It will boil away faster?

  4. #3
    bmh.01's Avatar
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    S3 coolant level, thoughts please.

    It's leaking somewhere. It's a sealed, pressurised system to stop it from boiling off.

    That said, top to bottom of expansion bottle marks isn't the end of the world over 12 months.

  5. #4
    OVRA3's Avatar
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    S3 coolant level, thoughts please.

    I've got the smallest leak in my radiator I lose a very small amount over 3 months, trickle almost but I have located the leak and eventually will get a new radiator, I wouldn't worry about it
    A3 Sportback 2.0 TFSI S-Line Quattro Stage 1 Tune it up - Lowestoft Custom Remap- 6187 RPM developing 260 bhp 279lbs ft Akoya Silver, Roof rails, Black heated Vienna Leather, Bose upgrade, Bluetooth

  6. #5
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    I've had exactly the same problem with my s3. I found a very very small water leak dripping from my turbo. Didn't even know the y were water cooled.

 

 

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