My car is model year 2003.

 

I looked into this a bit and 996 573 107 00 is not the right part. It is a pipe #5 associated withe the fuel cooler in the picture below:

[url=https://flic.kr/p/pwquLV]

When you look at diagram 107-05 in PET, you will see the following diagram which shows the fuel lines going to and from the fuel cooler (#24 and #15 in the upper part of the picture). Obviously the lines have to be different on your car since there is no cooler. PET shows only one version of #24 (996.110.314.72) and two versions of #15 (996.110.324.72 and 996.110.324.74). Any chance you could get your local dealer give you the correct part numbers for your car based on your VIN? If you could PM me your VIN, I could check with my local Porsche dealer and they could probably source it for me. Thanks!!

 

Opinions differ here. Is it worth it to have this famous fuel cooler or not?

 

Its just additional weight to the car.

 

Hello, I also have a leak problem on my car, I never get more boost pressure, but allways less...
I've test my pressure system but can't hear any leak.
Did you hear a sound of leak with your N75 problem?
Is there a way to test it before to change it?

 

my most recent leak was a bad check valve that was up top of the plenum. i replaced all the check valves and n75 at the same time and the leak was gone. the plastic housing of the check valve in question was simply cracked and it whistled the minute we pressure tested from the first turbo.

i hope this will help but i would pressure test again, and change ALL those; the n75 as well as the two check valves, they are very inexpensive.

 

That helps, thank you.
If it's not expensive, then I do it and it's done!
Did you hear any sound while testing pressure? Or, as I suppose, we can't hear anyhting because the air recirculate?
Are these valve all accessible?

When I see all this valves, I'm scared!!!





Which one did you change on the screen captures?

 

yes, the check valve made a "whistling sound" the minute we pressure tested so we didn't need to look any further. if you hear NO sound? again, when it comes to boos leaks and there is NO sign of an obvious leak? i would replace all the valves. again, it is two check valves and (1) n75 valve. replace them ALL at one time and it will eliminate them as the source of your issue. if it does not? they are so cheap, at least you won't have to think about them again.

i do hope this helps. i can't help with the screen captures but your parts guy ( or the PET catalog. that IS the pet sorry ) is going to have them and any porsche parts guy should know them with a phone call!

add: # 9 and #21 .... i'll look again later when i can see better and those ones i listed just at a quick glance.

they are accessible once the plenum is reachable. you'll need ( obviously ) to pull out all the intake stuff.

again, good luck. where is jpflip when you need him lol plus i believe he is french canadian! reach out to him he has all the parts info!