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rach

oil mingle with water

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Hi
here I have a land rover discovery 2 TD5 2002, diesel
i have problem that the oil that has entered in the water system (I noticed that the expansion tank is filled with oil), I found on the internet that there maybe a problem in the oil cooler
and I'm afraid that is a serious problem
need to know more about the problem, and how do to repair
thank you
cordially


 
 

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Before assuming that, get the coolant checked for combustion gasses, that will rule a head gasket in or out.

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It sounds like the oil heat exchanger has failed. It lives on the left side of the engine below the exhaust manifold/behind the oil filter and is available as a replacement part.

There are also aftermarket ones available that offer better resistance to corrosion, but if you use the correct antifreeze, you should be OK on an OEM one.

Have a good look at the housing while you are in there, the pipe spigot is a good point for corrosion and subsequent misery as your coolant leaks out and strands you.

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