bad PCV valve symptoms on 3.0t 2011

[celticsevad]

.. maybe can someone refer me to another thread, but i just changed my thermostat, i should have done the pcv too because its at the same location on the engine...

what are those symptoms when pcv goes bad... i have about 1liter per 4000km of burned oil..and is there any checkengine light comes up when it fails.. i heard about oil goes into coolant, i dont have that issue.. only the burned oil for me..

[bbrown14]

Most notably you'll see medium-large amounts of coolant loss, and coolant in your oil. What you can do to check if you suspect it is pull your drain plug and check if coolant / water comes out first.

[Bartlett]

Most notably you'll see medium-large amounts of coolant loss, and coolant in your oil. What you can do to check if you suspect it is pull your drain plug and check if coolant / water comes out first.

What if you see coolant loss but no coolant in your oil?

[Chris@EPL]

.. maybe can someone refer me to another thread, but i just changed my thermostat, i should have done the pcv too because its at the same location on the engine...

what are those symptoms when pcv goes bad... i have about 1liter per 4000km of burned oil..and is there any checkengine light comes up when it fails.. i heard about oil goes into coolant, i dont have that issue.. only the burned oil for me..

What code and oil consumption is normally a bad PCV.

What if you see coolant loss but no coolant in your oil?

Probably leaking SC intercoolers. Pull cyl 3 or 6 and see how the plugs look.

[celticsevad]

no code at all for me chris

[Dr GP]

Burning more than a qt in 5K miles would be suspicious of a bad PCV valve. Even though Audi claims consuming 1 qt/1K miles is "within acceptable limits". Acceptable to Audi but that is pure BS!

[bbrown14]

What code and oil consumption is normally a bad PCV.



Probably leaking SC intercoolers. Pull cyl 3 or 6 and see how the plugs look.

I agree with this, intercoolers go pretty quickly and do cause significant invisible coolant loss. If you feel like you’re loosing power as well that could be the culprit


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[Bartlett]

What code and oil consumption is normally a bad PCV.



Probably leaking SC intercoolers. Pull cyl 3 or 6 and see how the plugs look.

Intercoolers are A-okay.

So, no IC leaks and no coolant in oil, yet coolant is disappearing?

[bbrown14]

Intercoolers are A-okay.

So, no IC leaks and no coolant in oil, yet coolant is disappearing?

How much coolant is disappearing? We do also see a bit of coolant loss, which is "normal" by Audi standards, but if its significant I would check your your water pump. If still nothing, and you didn't see any coolant inside the intake ports underneath the supercharger, you just replaced the thermostat, and you don't have coolant or water in your oil, you're kind running out of things which could be broken