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I have seen the high beams burn out; it is common. You could test the bulbs and if they are ok; then see if the plug is getting power in the high beam mode with a circuit tester. I would also; make sure you have the correct bulbs installed, goofier things have happened. As you noted; the stalks fail but I would test/check the bulbs first.
Headlight Bulb High Beam: part # H1
The wiring have been known to fail and bad connections, can burn out bulbs faster too.
Cleaning them with some contact cleaner and using dielectric grease is supposed to help. Both of these are available at most auto parts stores:
CRC 5103 Quick Dry Electronic Cleaner - 11 Wt Oz.
https://www.google.com/search?q=CRC...rome..69i57&sourceid=chrome&es_sm=91&ie=UTF-8
Permatex 22058 Dielectric Tune-Up Grease, 3 oz. Tube
https://www.google.com/search?q=Per...rome..69i57&sourceid=chrome&es_sm=91&ie=UTF-8
The headlight harnesses; have also, been known to crack and melt. These guys sell the stock and upgraded harnesses; the upgraded version is cheaper than the stock, failure prone version.
http://www.fixmyvw.com/upgraded-wiring-vw-beetle-headlight-harness/
Headlight Bulb High Beam: part # H1
The wiring have been known to fail and bad connections, can burn out bulbs faster too.
Cleaning them with some contact cleaner and using dielectric grease is supposed to help. Both of these are available at most auto parts stores:
CRC 5103 Quick Dry Electronic Cleaner - 11 Wt Oz.
https://www.google.com/search?q=CRC...rome..69i57&sourceid=chrome&es_sm=91&ie=UTF-8
Permatex 22058 Dielectric Tune-Up Grease, 3 oz. Tube
https://www.google.com/search?q=Per...rome..69i57&sourceid=chrome&es_sm=91&ie=UTF-8
The headlight harnesses; have also, been known to crack and melt. These guys sell the stock and upgraded harnesses; the upgraded version is cheaper than the stock, failure prone version.
http://www.fixmyvw.com/upgraded-wiring-vw-beetle-headlight-harness/