VW Eos Fuel Door Lock Failure Causing Electrical Issues

Had this exact same issue with a 2011 VW Passat. The electrical fault with the fuel filler flap was just the start of the problems. After some basic troubleshooting, the workshop found the lock actuator had failed completely. The linkage was also defective, which caused additional strain on the electrical components. Turned out this is a fairly common issue in these models. Total repair cost was 210€, including parts and labor. The mechanic replaced both the electric actuator and the surrounding mechanism. Since the fix, everything has worked perfectly for over a year now. Important to know: The electrical issues you mention could be related. In my case, the central locking and boot release were also acting up because of the faulty wiring affecting the fuel flap mechanism. Could you share: Whether your central locking is affected, If you hear any sounds when pressing the fuel flap release, What other electrical functions are having issues, What error codes are showing up This info would help determine if your issue matches what I experienced and could make diagnosis more accurate.

I have 53122km on the clock and seeing similar symptoms with the central locking system acting up. The fuel door release makes a clicking sound but nothing happens. Error codes P0443 and U0416 are showing. My power windows also started working intermittently around the same time the fuel flap issues began. Thanks for sharing your repair experience, the cost seems reasonable if it resolves all these connected electrical problems. Did you need to get the wiring harness checked as part of your repair? The lock actuator replacement might be the solution I need.

Thanks for providing those details. Your symptoms match my situation exactly, especially that clicking sound from the fuel filler release button. The power window issues are also a telltale sign of the electrical fault spreading through the system. In my repair, they did check the wiring harness and found some corrosion near the release mechanism connections. The lock actuator replacement alone might not fix everything without addressing any wiring issues. The mechanic cleaned and sealed the connections as part of the job, which prevented future problems from moisture damage. The error codes you mentioned (P0443 and U0416) are the same ones I had. They indicate communication issues with the fuel system controls. Getting these cleared after the repair is important to ensure the central locking and release button functions return to normal. The 53122km reading is quite low for these issues to appear, but the age of the car can be more relevant than mileage when it comes to electrical faults. My repair has lasted well over 2 years now with no recurring problems. Would recommend getting both the actuator and wiring checked, dealing with just one might not solve the complete electrical system issues youre experiencing.

Based on all this feedback, I think we're looking at the same electrical issue you had. The clicking from the fuel door release button matches exactly what you described, and those error codes confirm it. Good to know the power window problems are connected too, I was worried that might be a separate repair. 210€ for the complete fix including the lock actuator replacement and wiring check sounds fair. Really helpful to know the corrosion near the key fob and release button connections could be part of the problem. My central locking issues are definitely getting worse, so addressing everything at once makes sense. Will book it in and make sure they check both the electric actuator and the wiring harness. Hoping for the same long-term success you had with your repair. Thanks for walking me through your experience, helped me understand what I'm dealing with and what to expect for the fix.