Does the Yeti have a similar way of finding out when it was actually built or does this link just indicate when that specific part was produced?

Skoda Fabia build date?

You get those dots on loads of things in the VAG stable or indeed any plastic parts! They might have produced way too many fuel caps or [insert plastic part type here] in July of 2009 and are still using them on cars being built now... who is to know? So no this is really not a good way of working out when your car was built.