Question about 2003 Volkswagen Passat

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Oil in water resovour vw 2002 passat

Vw passat oil in coolant resovour is oil cooler gone bad vw passat oil in coolant reservoir is oil cooler gone bad My 04 Passat is having issues with oil leaking into the coolant. Took it to the local vw dealer and was told it was the oil cooler. I wanted a second opinion so I transferred it to a German vehicle mechanic which they tested the lines to the oil cooler and found no leaks. And apparently they dont know why it would be leaking. Was told that they needed to work on the head gasket because of it over heating but unsure if that would actually fix the leaking problem??? Please help I really cant afford any of this but I need a direction to go towards at least.

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Could be just the OIL COOLER. VW IS CORRECT.
If the oil cooloer fails internely you will have a mix of coolant and oil. In the engine and in the Radiator,

But not to say the other guys were wrong...

Posted on Jun 18, 2009

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Now you can chack another cooler,which is istalled on the transmition, if there is no leaks, last step is to chack the compression of engine and u'll know about blown head gasket. Good luck.

Posted on Apr 03, 2013

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When oil is in the radiator water your head gasket is blown. Have them resurface your head and replace the gasket.

Posted on May 27, 2009

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Oil in water resovour vw 2002 passat


This is probably a head gasket problem and not an oil cooler problem.

The oil cooler is fairly easy to test.

Remove the cooler from the engine but do not disconnect cooling lines and then pressurize the cooling system. You can use a radiator test tool to put pressure on the cooling system and look for leaks. If it leaks, replace it.

You may also be able to bypass the oil cooler altogether if it leaks.

The head gasket is another story.

Get a 1/4" pipe to spark plug fitting and put a male air coupling fitting in it.

Then you can charge the cylinders with air from your compressor.

Make sure each cylinder that you test is at top dead center so that the valves are closed.

If air bubbles into your coolant, you found your problem.

If air leaks out your intake you have a bad intake valve

If air leaks out your exhaust you have a bad exhaust valve etc.


If you find this useful, please take the time to rate it.

Tim

Apr 15, 2009 | Volkswagen Passat Cars & Trucks

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