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FSI oil in coolant and pressure in coolant


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HI 

I have had a problem with my FSI for a couple of years 

First started coolant from pressure relief in coolant tank on longer journeys 

Then started blowing coolant hoses (5 different ones at last count.

So has signs of oil in coolant system.

Gasket done twice with no sign of cracks on crack test.

Car is now running fine but with thermostat internally removed so coolant system can not build any pressure, so takes long time to heat up and never get to 90C and I block radiator with cardboard in the winter.

Now think problem could be a cracked engine block or possibly a crack in the cylinder head that can not be closed 

Is it possible for oil pressure to get into the coolant system from the oil cooler?

 

 

 

 

Edited by terrywindy1
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vor 2 Stunden schrieb terrywindy1:

Is it possible for oil pressure to get into the coolant system from the oil cooler?

 

Hi,

it is possible . I had this issue on a Golf II GTI many years ago . I disassembled the cylinder head twice and couldn´t fix it, I thought the engine was dead but then a friend told me to exchange the oil cooler ... and that was the issue .

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