Front arches, corrosion and foam arch liner

[simon_house]

Evening, not posted for a while...

Anyway, I've got all four wheels off to replace the brake lines for copper and braided items. I figured I'd take the arch liners off to throughly clean and dinitrol wax the inner arches and noticed a small amount of rust forming from the inside-out round the edge of the front arches. I found there to be quite a lot of trapped s**t between the strip of foam and the crease of the arches.

I suspect the foam is supposed to create a seal between the arch and the liner to prevent water egress behind the liner. Surely the foam is acting like a sponge and trapping water? Does the foam need to be on? Has anyone else removed it and left it off or replaced it with something less sponge-like??

Si.

 

[Grahaml]

pretty sure (certain?) that I don't have the foam on my wheel arch liners. No corrosion either.

Graham

 

[wasz]

Had my osf arch liner out recently to replace aircon pipe, saw some corrosion but no foam....

 

[PeterS]

None on mine either.

Can't see anything on the PET either.

:dont know:

 

[simon_house]

Had my osf arch liner out recently to replace aircon pipe, saw some corrosion but no foam....

So no foam sealing strip stuck to the inside of the arch following the profile? They'd be a 10mm x 30mm cross-section if it was on and they make up the gap between the edge of the arch liner and the back of the arch.

They are on the Porsche parts pdf so I know they were factory fitted...

:?:

 

[simon_house]

Not sure how clear the page is ^^^^ Pg 222 if you have the PET handy- One long strip and a smaller one at the bottom of the arch attached to the end of the sill section.

 

[zuf]

Yep got them foam things ony MY2000 C4
cab no corrosion ....

Z