first generation Cayenne: Beware of rust spots!
 

I was reading on some forum that some 2004-2005 Cayennes has rust spots on the bottom of doors due to a welding issue at the factory. I was not worried about the 2004 Cayenne I just bought as it was dealer maintained and I really looked all over the place for rust. But on the website one owner did say to really look close at the paint on the bottom o the doors... so I did a 20 minute inspection and on the bottom of the rear passanger door where welds are, the paint was a bit....wavy but almost not visible. I pushed with a small screwdriver and... a 6 inch by 1 inch chunk of paint with surface rush fell off. I calmly took some sandpaper and sanded off the rust (again this was only surface) . The i put a few coats of derusto paint just to protect the metal (yes same color as the car:p) until I find a body shop that can do it right. Rest of the car seems spotless but I do recommend to have a close look at the bottom of all 4 doors.

btw what is the warrenty for rust on a Porsche??? anyone?

Well I am having the car inspected by Porsche today. I know they will say its just wear and tear and its very light BUT I will argue that there was no wear to the inside of the door! I think I have a 10% chance to win but its worth a shot.

Of course as the car has had a repaint ( for whatever reason )the corrosion warranty is not valid! I expected nothing less! I will just have it done by a body shop

that's weak. even if it wasn't the part of the car with rust that was repainted?

Yes according to the dealer any repaint just ... washes off the anti rust coating... It's total BS .