oil in coolant fluid

2009 VOLKSWAGEN POLO
320,500 MILES • 1.4L • 4 CYL • 2WD • MANUAL
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PMPOLLEN
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i drive a vw polo 1.4 ..2009 model
i have been getting an issue of having oil mixing with coolant in my car , someone advised i buy a new oil cooler then flush out the radiator .
i am willing to do that , i wanted to know if that is enough to make sure this will not happen again .
this problem happened after changed a head gasket and replaced the water pump and belts .
please advise ...if you can please send me a picture of the oil cooler fitted in my car ( 2009 vw polo 1.4l trendline )
Aug 30, 2021 at 4:35 AM
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KASEKENNY
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The two likely causes of this are oil coolers or head gasket issues.

Here is a guide that talks about this issue in more detail:

https://www.2carpros.com/articles/coolantantifreeze-in-the-engine-oil

So the fact that this started after the head gasket was replaced means this is where I would start.

I would confirm the head gasket is not leaking by running through this guide:

https://www.2carpros.com/articles/head-gasket-blown-test

More than likely the head was not torqued properly if this is related. Clearly this could just be a coincidence but the fact that the head gasket is the most likely cause of this and it was just changed, then I suspect this is the issue.

Please run through all this info and let us know if you have other questions. Thanks
Sep 1, 2021 at 7:56 AM