bigbuzuki

I had mine rectified under CPO warranty.

Part number is 948 110 202 01. Part name as per PET manual is "vent line, tank ventilation".

MSRP is $71.68

Sonnen Porsche has them for $51.52

User 4221

With parts and labor ~$300

mudman2

The part from Sunset is $41 plus change and its a 45 minute install, very easy

Slow Guy

Is this a part that should be changed for regular maintenance (like a PCV valve) or is this a part you wait until it breaks? At $41 and 45 min. I wouldn't have an issue doing it for something like the 60k mi. service if recommended.

ryan09

Anyone has a DIY guide to do this? mudman, any experience changing this yourself? If it's a easy fix I don't want the dealer doing it for 300$

Ryan

User 4221

I call it an expensive lesson..... I believe they did a purge pump with it

ryan09

Not sure what you mean by expensive lesson, the valve failed because of something I did?

Ryan

mudman2

I did a dyi with pictures, not in a good place to look right now try to search for "check valve"

It's only about 45 mins and the instructions I gave are very precise

mudman2

Nothing you did , they fail

ryan09

Thank you mudman, I'll look for it.

Edit: I think I found it here post #9. I'll try to follow them and update this with the result

With the pictures: here

Ryan

darth550

Could you possibly post the link? I searched but did not find it...

Thanks

User 4221

The expensive lesson was to know this was an easy DIY after I paid $$ to fix the problem.

mudman2

Here is the DIY on the Valve

you will need to remove the throttle design cover
pull up it comes right off. then you will need to remove the 4 t 30 torx screws on the drivers side coil cover.
then that cover will pull up.
Use a large flat blade screw driver or a penny to remove the 1/4 twist locks that hold down the drivers side engine compartment cover (the big black one) there should be 4 1/4 ttwists
Then remove the rearblack panel, 1 1/4 twist in the center and 2 on the pass side of it. Remove the panel
the purge valve is in the fron of the engine between the head and the intake on the drivers side .
Looks like a black cylinder little bit bigger then a film canister with a hose on one end to the front and the back is a hard black plastic line that runs along the intake and comes up in the back and goes to a rubber hose on the fire wall.
Un plug the valve and push it off its bracket, undo the clamp with a pair of plairs and pull the hose off (sometimes you need gently grab the hose with the pliars and twist to loosen it up from the valve, you can damage the valve just not the hose.
In the rear you will need to do the same, the rear hose never comes off easy I think they glue it on, use you pliars to crush the plastic line where the hose is over it. once it is crushed enough it will come off. The line is pushed into 2-3 gold clips along the intake, it will pull right out of them, You also may need to unplug the injectors on the drivers side bank just to make it easier to route.

Part number 948 110 202 01

darth550

Did it this morning. Even though getting the hoses off was a bit of a PITA, I got it buttoned back up in about 35 minutes, just like clockwork.

CEL is off, she started right up after filling the tank and is idling nice and smooth.

Thanks again.

hahnmgh63

Thanks everyone, especially you Mudman2 for the writeup. Looks like a fairly simple and cheap repair. I may go ahead and replace it on my Cayenne as a preventative measure.