Emission Control problems of the 2000 Volkswagen New Beetle

I own a 2000 New Beetle 1. 8t glx with approximately 30461 original miles. I have had a total of 7 repairs of the oxygen sensors and one repair to date of mass air flow meter. All of which have been covered by Volkswagen of americas expense. I do however want to note that all the mechanical issues revolve around the mil malfunction indicator light on the dash. Each of the failures happens within one year from replacemnt of parts and with less than 6k miles between repairs. With my persistant calls to vwoa and my local dealer they have picked up all expenses. The warranty for this vehicle was 2 years or 24k miles. I now have 30k plus miles and am concerned about this persistant problem of O2 sensors and the like. If you require the VIN number for records or other pertinent information please feel free to contact me directly by mail, email, or telephone perhaps this is problem has been noted by other vehicle owners about this and orther models.

Service engine light has come on repeatedly since purchasing the car from burnsville vw, burnsville, mn. Service dept. Stated "it's nothing to worry about" and reset the computer. After persistent reoccurance, requested they actually fix the problem, that is when they informed us the rivets to the secondary air pump had failed and it was no longer under warranty. Calls to vw north America resulted in the same, "no longer under warranty", "circumstances do not matter", etc. Estimated $650 to replace item. While we are being told it is a "minor" failure and will not affect the car performance, it seems that it triggers an "service engine soon" light for a reason. Also, we were told to "ignore" the service engine light. However if we ignore it then when a "significant" problem occurs, how would we know?! vw north America customer service center admitted that this has been an ongoing problem but unless it is reported within the first 2 years it is no longer covered.