Coolant for 2007 Citroen C4 HDi PSA 9HY 1.6 engine?
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  1. #1
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    Default Coolant for 2007 Citroen C4 HDi PSA 9HY 1.6 engine?

    What exact coolant should i be using for a 2007 Citroen C4 HDi PSA 9HY 1.6 engine - manual?
    Looks like there was a blue coolant level mark on the bottle but the water dropped was more just clear than anything.
    Bought the Nulon Blue coolant for Euro cars but it contains OAT, which i have read up and formed the opinion that its not for this engine.
    What coolant should i be using?

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  2. #2
    1000+ Posts Ken W's Avatar
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    The owners manual should have a recommendation on coolant type. The C4 Haynes manual says to use Glysantin G33 but that is probably a UK coolant but it indicates to me that it is a Glycol based 33% type coolant rather than an OATS based one.

    But it depends what coolant is already in it as the two types should not be mixed. So if it has already been changed over to an OATS type you will need to empty completely and flush before changing back to a Glycol based coolant.

    Cheers,

    Ken

  3. #3
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    Couldnt really find much in the owners manual about coolant tbh.
    Its had a full flush and clean so whatever was in it is long gone.
    So, where would i find Glysantin 33 - is it an ingredient of a coolant or a particular brand?

  4. #4
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    Glysantin g33 is a BASF product easily bought in Europe. It is made for PSA engine specs - http://www.glysantin.de/en/products/g33.html. The dealers import and stock it here; it is OAT; it is blue dyed.

    Nulon claim to use the stuff in one of their red dyed products.

  5. #5
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    This is the one I bought:
    Blue Long Life Concentrated Coolant - Nulon Products Australia

    however, doing a check on Nulons site, they suggest this for the C4 HDi:
    Red Long Life Concentrated Coolant - Nulon Products Australia

    Thoughts?

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