3

What should I check/replace now?

I already replaced a set of gaskets in the oil cooler. It did no help.oil cooler Z18-XER

Set of gaskets

Engine Z18-XER. Year - 2008.

Nothing else happening. No white smoke, no external oil leaking, no external coolant leaking. No unusual sound,

  • Same thing happening to me, anyone used a leak stopper? i tryied and worked for a month and now it has oil on the coolant reservoir – Gustavo Espadas Dec 20 '16 at 15:47
  • I posted my own answer. It shows how I fixed it. – Yevgeniy Afanasyev Dec 21 '16 at 5:23
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Oil in coolant most often comes from a leaking head gasket. You may want to perform a compression leak-down test to confirm.

  • In this case I would loose coolant as well, but this is not happening. Nothing else happening, actually. No white smoke, no external oil leaking, no external coolant leaking. No unusual sound, nothing like Blown Head Gasket Symptoms. – Yevgeniy Afanasyev Jul 18 '16 at 4:06
  • I added this info into question. Thanks for this idea. – Yevgeniy Afanasyev Jul 18 '16 at 4:11
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The part number that solved my problem is 24405911.

It is known as Oil Pump front main gasket.

When one will replace it it will remove the timing belt, thus consider replace them together.

24405911

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