04 Beetle Convertible Problems

I have a 2004 New Beetle convertible and it seems like it's been pecking me
to death.

I'm about to take it in for the 3rd time due to the airbag warning light,
I've had in numerous times due to the window mechanisms, air-conditioner
leaking water, roof lining separating from the window, broken trunk struts
and now one headlight sometimes will come on, sometimes it won't.

Luckily, nothing has gone wrong with the engine to date, but I've had
numerous irritating problems since the day I bought it new. Has anyone else
had problems? I'm wondering if it is just my car or possibly the dealer I'm
taking it to for repairs.

Any help would be appreciated.