VW Polo Warning Light Chaos, Multiple System Alerts

I dealt with a very similar situation on my 2015 VW Golf TDI. As someone with moderate experience working on VWs, I initially tried using my OBD-II scan tool to diagnose the multiple warning messages, but the readings were inconsistent. After several attempts at clearing the malfunction indicator lights myself, I took it to a workshop where they found the vehicle coding was corrupted. The multiple system warnings were triggering because the control modules were running incorrect software parameters. The repair involved reprogramming the vehicle control modules with the correct coding, which resolved all the warning messages including the check engine light. The total cost was 360€ for the diagnostic work and coding correction. Since then, all systems have been working normally with no further issues. Before suggesting specific solutions, could you share: Have you noticed any changes in how the car drives? Which specific warning messages are you seeing? Did these issues appear gradually or all at once? Have you had any recent work done on the electrical system? This information would help determine if your issue matches what I experienced with the coding problem or if engine diagnostics might reveal a different root cause.

Had my car serviced last week at 93152km. The car drives completely normal with no changes in performance. The warnings appeared suddenly after I had to jump start the battery. Currently seeing ABS, airbag, and power steering warnings on the dash, plus unusual infotainment system errors. No previous electrical work was done. After reading up on similar cases, it seems the battery disconnect might have triggered these system faults. A proper diagnostic scanner reading would likely confirm if the control modules need recalibration like in your case. Will get it checked this week to avoid any safety issues, even though the engine runs fine. Your experience with the corrupted coding gives me hope this might be a relatively straightforward fix rather than multiple system failures.

Been some months since I had those control module issues with my Golf TDI, and your symptoms sound exactly like what I experienced after a battery reset. Based on the timing of your warnings appearing right after the jump start, I am almost certain you are dealing with the same coding corruption that affected my vehicle. The fault codes likely need to be cleared and the control modules may require recalibration. When the battery voltage drops too low or disconnects, the system can lose its stored parameters, triggering multiple malfunction indicator lights across different modules. A proper scan tool reading will confirm this, but the fact that your engine runs normally is another good sign that points to electrical system initialization rather than actual component failures. My repair shop explained that modern VWs are particularly sensitive to voltage interruptions. For reference, the fix on my car involved: Full system scan to verify fault codes, Clearing stored error messages, Reprogramming affected control modules, Testing all systems after recalibration If your case is similar, expect repair costs around 300-400€ depending on how many modules need attention. The good news is these electrical gremlins are typically resolved without replacing any hardware.

Thanks for sharing those details about the repair costs on your Golf. Your battery theory sounds spot-on, especially given how sensitive these newer VWs are to power interruptions. I booked the car in with a repair shop that specializes in engine diagnostics and electrical systems. They will perform a full system scan next week. The multiple warning lights are still present but knowing your similar case was resolved through control module recalibration makes me less worried about potential major repairs. I will update once they complete the fault code analysis and confirm whether it is indeed just a coding reset needed after the battery drain. Really hoping it stays within that 300-400€ range you mentioned. The check engine light combined with ABS and airbag warnings had me concerned initially, but the fact that the car drives perfectly normal does suggest an electrical system initialization issue rather than mechanical problems. Thanks again for walking me through your experience, it helped narrow down what we are likely dealing with here.