Corrosion/Rust on inside lip of front doors

[m4rtin]

While cleaning my car recently I spotted what appears to to the first signs of corrosion/rust on the inside lip of both front doors, located just down from where the lock is (if that makes sense).

There is a small amount of bubbling which is not obvious and I'm sure most people wouldn't even have spotted it as I like to clean around the doors and boot I did.

The car is 3 years old in a week so I was pretty shocked to see it. I wondered if any other people have experienced this?

I'm guessing it would be covered by the anti corrosion warranty but I'm wondering what they would do to fix it because I suspect the corrosion is also under the lip on the door skin which wraps around from the front to the back.

 

[Kendy90]

How long does the anti corrosion warranty last?? There are points inside my boot that have rusted too and was unsure what to do about them

 

[m4rtin]

Apparently it 12 years...

http://www.seat.co.uk/content/uk/br...nce/warranty/paint-and-bodywork-warranty.html

 

[tundrarocks]

You have to prove the car is rusting from the inside out. Had mine back to seat when both front arches started to rust.

 

[m4rtin]

How do you prove that?

I'm pretty sure it is as it's on the inside of the door and so hasn't been caused my a chip etc.

 

[tundrarocks]

Think someone has to assess the rust for the warranty. Salesman just told me I stood no chance and pointed me to the body shop along the road.
Annoys me that a car can show signs of rust after a few years. Yet I've owned 20 year old 205 GTI's with no rust at all