At least you have to reckon that this "teeths" gives infinite personalities to each car as they are all different arrangements, which make me think more in some random spilling over or some missaplied human QC leak test resulting in this dripping streaks, than some automated batch issue that would make the same streaks in every car...

 

^Have you tried washing it off ?

 

Seriously, just take a power washer to it, starting gently in a corner on lower spray

 

I took this little feller (steamer) and looks like hot water did the job quite easily... I will report tomorrow after it dries out if the white teeths smile me again or they are gone forever

 

After it dried the "stuff" went white again, this looks like bird crap. As @Westcoast suggested this isn't water soluble.

Some zoom-in pics:

Above (red circle) without steamer, this streak remained untouched as a control .



Above on yellow circle after the steamer and dried... right on blue still wet and almost imperceptible

 

Have you tried scraping some of it off to see what it is?

 

So....they (Porsche) will be replacing it then.

 

Unfortunately even with the substance off only a chemical analysis could determine what it is... IMHO what needs to be determined is what safely takes it off?

Or if it can't successfully be remedied then this should be Porsche's next action...

 

Thanks for the great close up pictures, it certainly appears that there is material deposited on this radiator and some remediation is warranted, IMHO it can't be suggested that this is 'normal'.

If Porsche doesn't step up I would be surprised, if they don't and my car arrives this way I will pull the bumper cover and take care of it myself.

 

P should step up here...for $150K I better be able to eat off this thing on delivery day...not that I would of course! #1 rule, no food or drink in the car

 

I’d still scrape some off and take a close look at it. You may be able to tell what it is, or at least get a better sense as to what might take it off.

 

Whats above the front radiator. Does anyone know? It is in fact the radiator fins correct. The A/C condenser is on the passenger side like a 911?

 

From my perspective (as a Scientist) this appears to be a chemical reaction. I am guessing condensation and drying cycle is creating this. I doubt there is a transit coating or similar of any sort on the fins I believe it is something in the metal composition or painting that is reacting with moisture.

I don’t have all the answers but I am posting this for posterity so I can come back at some point and validate my suspicions once the bottom of this is gotten to. Porsche rightfully coloured the radiator black because it is so exposed visually, but there is something undermining this intent. I agree with former posters in that this is not acceptable for a 100k+ car. It may function flawlessly, but this is part of the visual / design of the car and needs to be fully addressed towards a solution.

 

Ok Gents...so I just got back from my local dealer who happens to have a 718 GT4 on site...was doing some recon for @Westcoast on an unrelated matter I took the time to get down on bended knee (much to the chagrin of my SA) to look at the situation for myself. The car DID have the stripes on the rad, so I think this is a widespread issue at least of the first batch of cars. The SA was as yet unaware of the situation, however he postulated that it could be something that has happened during transport. I countered with the theory that this would be unlikely since you have cars in both Europe and NA that seem to have the issue, and to my knowledge, the EU cars are not (all) being put on boats. Thus, I believe it is likely something that is unrelated to shipping, rather it is something that is happening due to production. I will say that (at least on this car) it was not overly noticeable indoors under garage lighting. That said, I did confer my expectation that should my car show up with this issue, it will be rectified either by cleaning or replacement. My SA agreed. Good enough for me.

 

I agree that it that it is chemical but not caused by condensation or moisture it would not be in streaks, cooling radiators are black for reasons of heat transfer not aesthetics.