Door seal replacement?

[Stephenjk]

I have a patch of rust around the drain hole on the cill of the drivers door. I’ll need to remove the door seal at least in part to get rid of the rust and por15 and paint it. The door seal looks original so bit tatty and perished. A replacement OEM is £25, original porsche £142.

Do you think it is worth replacing the door seal with OEM or just leave old one in place? Or is it worth doing it properly and getting a porsche replacement? I’m tempted to replace but it isnt causing a problem at the moment so not sure.

You can see what looked like a fairly small patch of rust on the cill behind behind the door in this photo. On pealing back that black cill covering i found a patch on the cill about 4 inches by 3 inches. luckily it isnt through the metal so think i can just tidy up and repaint. Something to watch out for though, i only noticed it when cleaning the car, otherwise it is pretty well hidden.

 

[Dekker]

Tap the rust with something sharp and see whether it breaks through, I had a very small spot where the cill cover joined the bodywork and it eventually needed a 2" weld to fix it.
As for the seal, prices by Porsche are ridiculous for a simple mass produced door seal. I'd be tempted with the OEM. But if it ain't broke, don't fix it. More than likely the rust is starting inside moving outwards and not the other way around. POR15 is excellent after all rust is removed.

 

[Stephenjk]

I’m hoping that isnt the case, that was my first worry it was inside out but i dont think so. I’ll post a pic and see what people think with the full rust patch exposed. I’ve used a wire brush on the rust and pushed pretty hard with my finger rather than a screwdriver and seems solid. I’m going to use a dremel to get it back to bare metal and will have a closer look at the weekend.

 

[Stephenjk]

TMore than likely the rust is starting inside moving outwards and not the other way around. POR15 is excellent after all rust is removed.

This is what I'm dealing with, i think it is outside in. I think water has just been laying on that drain hole. Lucky i noticed it when i did. Anyway the por15 is curing so hopefully I have stopped it getting worse.

 

[JamesBall]

When I got my car resprayed I repaced the door seals with the OEM part...and they still whistle at speed. If you replace them, I'd try the cheaper part.