There are a number of sensors on these convertible top systems; it would be best to scan for trouble codes, that way you would know specifically which malfunctioning sensor is causing the problem?

Download the VW SSP 281; to understand how the system is laid out, designed and the location of the specific position sensors:

ssp281 The New Beetle Cabriolet

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Testing and live data using VCDS:

 

Correct diagnoses requires a VW scan tool; i prefer vcds by ross tech $199 but a cheaper option the Ancel BD500 is $65 on Amazon.

I suggest you get a Volkswagen scan tool as soon as possible, scan for codes and tell what you find, we can go from there.

Amazon.com: ANCEL BD500 Bluetooth Diagnostic Scan Tool for VW Audi Seat Skoda Diagnosis, Full Systems Volkswagen OBD2 Scanner Vag Car Code Reader with Battery Check EPB Reset for iPhone, iPad & Android : Office Products

Amazon.com: ANCEL BD500 Bluetooth Diagnostic Scan Tool for VW Audi Seat Skoda Diagnosis, Full Systems Volkswagen OBD2 Scanner Vag Car Code Reader with Battery Check EPB Reset for iPhone, iPad & Android : Office Products

www.amazon.com

For Parts info, search by vin and correct pricing; check out the Volkswagen Parts site or contact a local VW dealer with your Vin number:

www.parts.vw.com

 

1Y0871662A

gregoryklausner - Billymade is right - get the ross tech scan tool. It will tell you precisely which sensor is the problem. I have a 2004 with a power top, but had the same beeping issue. The ross tech pointed to sensor F326 (see Page 30 of the SSP281) which is the sensor on the latch. (I may have my right and left backward - one side is F326, the other is F325). My latch was working, but the sensor kept beeping. Turned out the activator arm that presses on the switch button on the sensor had broken off. VW does not sell the switch, only the entire $980 latch. I replaced the activator arm with one from a cheap amazon switch. I bent the arm to the correct angle and epoxied it to the switch. All good for 8 months. You really should fix/replace your latch to insure the top is locked in place. It is only 3 bolts. Took about 2 hours to get to it and put everything back. Here is the link to the cheap donor switches. https://www.amazon.com/gp/product/B07P4CJ8TV/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&th=1

 

I had my sensors wrong - see page 32 of the SSP 281