Code: P25A900

[digdah]

EPC came on with P25A900 Powerstage Valve Piston Cooling Oil Control Circuit/Open. What does this mean. Should I get this checked immediately? Car drives like normal unless I get on it.

[xXNateXx]

EPC came on with P25A900 Powerstage Valve Piston Cooling Oil Control Circuit/Open. What does this mean. Should I get this checked immediately? Car drives like normal unless I get on it.

Never seen it but I’m guessing it’s a broken hose or solenoid valve that’s stuck. Maybe a circuit is grounding.


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[gk1]

Piston cooling jet controller issue.
First time I've seen that.

Piston Cooling Nozzle Control Valve -N522-
https://www.ecstuning.com/b-genuine-...e/06k115243ab/
Luckily it looks inexpensive if that is all it is.

Unfortunately or fortunately, it is right next to the turbo oil feed lines. Perpendicular to them.
If you had the screen replaced already, maybe the connector is just loose.
If you have not had the screen replaced, perhaps now you have a reason.
Funny thing if you look at the picture of it on the ECS site it has... guess what...another screen. So if the screen everyone talks about gets clogged up...what about this one?

In this picture (thanks @Clipse3GT) you can see it just below the upper exhaust manifold bolt hole.

[3g_bishi]

We Took care of it, that solenoid needed replacement, took screan out and found it to be clogged up. Cleaned it out and replaced solenoid. It’s good now!


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[15 Phantom S6]

We Took care of it, that solenoid needed replacement, took screan out and found it to be clogged up. Cleaned it out and replaced solenoid. It’s good now!


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clogged up turbo oil screen or clogged up screen on the piston cooling jet?

[3g_bishi]

Screen was clogged which may have damage the cooling jet.


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[15 Phantom S6]

Sounds like this part should be automatically replaced when doing the turbo oil strainer.. If the micron rating of the piston cooling jet screen is smaller than the micron rating of the turbo oil screen, this screen is sure to clog up.. ughh

Any pics of the clog and the damage caused to the piston cooling jet?

[3g_bishi]

No pix but very inexpensive part at audi dealership. Less then $200


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[gk1]

No pix but very inexpensive part at audi dealership. Less then $200


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$200!!!! That valve is less than $40 even at MSRP should be no more than $60.
https://www.audiusaparts.com/oem-par...ve-06k115243ab

[3g_bishi]

You are correct I paid around $200 but I also purchased a humidity sensor, just remembered. so just for the oil Solenoid is around 60ish.


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[digdah]

3g_bishi is top notch! Thanks again for your help with this my brother.

[3g_bishi]

3g_bishi is top notch! Thanks again for your help with this my brother.

No problem anytime!


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