VW Virtus Battery Drain Signals Deeper Electrical Issues

I had nearly identical electrical system issues with my 2021 VW Polo last winter. As someone with moderate experience working on VWs, I initially thought it was just a failing vehicle battery, but the problem turned out to be more complex. After seeing similar symptoms, dimming headlights, warning lights, and difficult starts, I took it to a certified workshop. Their diagnostic revealed a faulty battery sensor, which was incorrectly reporting battery charging levels to the car's computer. This caused the electrical system to behave erratically and eventually led to battery failure. The repair involved replacing the battery sensor and recalibrating the electrical system. Total cost was 315€, including diagnostics and parts. Since the fix, all electrical issues have completely resolved. For your Virtus situation, could you share: What error codes are you seeing? How old is the current battery? Have you noticed if the problems get worse in cold weather? Are there any aftermarket electrical accessories installed? This information would help determine if you're facing the same battery sensor issue I encountered. The symptoms match exactly, but modern electrical systems can be tricky to diagnose without specific details.

I had nearly identical electrical system issues with my 2021 VW Polo last winter. As someone with moderate experience working on VWs, I initially thought it was just a failing vehicle battery, but the problem turned out to be more complex. After seeing similar symptoms, dimming headlights, warning lights, and difficult starts, I took it to a certified workshop. Their diagnostic revealed a faulty battery sensor, which was incorrectly reporting battery charging levels to the car's computer. This caused the electrical system to behave erratically and eventually led to battery failure. The repair involved replacing the battery sensor and recalibrating the electrical system. Total cost was 315€, including diagnostics and parts. Since the fix, all electrical issues have completely resolved. For your Virtus situation, could you share: What error codes are you seeing? How old is the current battery? Have you noticed if the problems get worse in cold weather? Are there any aftermarket electrical accessories installed? This information would help determine if you're facing the same battery sensor issue I encountered. The symptoms match exactly, but modern electrical systems can be tricky to diagnose without specific details.

I had nearly identical electrical system issues with my 2021 VW Polo last winter. As someone with moderate experience working on VWs, I initially thought it was just a failing vehicle battery, but the problem turned out to be more complex. After seeing similar symptoms, dimming headlights, warning lights, and difficult starts, I took it to a certified workshop. Their diagnostic revealed a faulty battery sensor, which was incorrectly reporting battery charging levels to the car's computer. This caused the electrical system to behave erratically and eventually led to battery failure. The repair involved replacing the battery sensor and recalibrating the electrical system. Total cost was 315€, including diagnostics and parts. Since the fix, all electrical issues have completely resolved. For your Virtus situation, could you share: What error codes are you seeing? How old is the current battery? Have you noticed if the problems get worse in cold weather? Are there any aftermarket electrical accessories installed? This information would help determine if you're facing the same battery sensor issue I encountered. The symptoms match exactly, but modern electrical systems can be tricky to diagnose without specific details.

I had nearly identical electrical system issues with my 2021 VW Polo last winter. As someone with moderate experience working on VWs, I initially thought it was just a failing vehicle battery, but the problem turned out to be more complex. After seeing similar symptoms, dimming headlights, warning lights, and difficult starts, I took it to a certified workshop. Their diagnostic revealed a faulty battery sensor, which was incorrectly reporting battery charging levels to the car's computer. This caused the electrical system to behave erratically and eventually led to battery failure. The repair involved replacing the battery sensor and recalibrating the electrical system. Total cost was 315€, including diagnostics and parts. Since the fix, all electrical issues have completely resolved. For your Virtus situation, could you share: What error codes are you seeing? How old is the current battery? Have you noticed if the problems get worse in cold weather? Are there any aftermarket electrical accessories installed? This information would help determine if you're facing the same battery sensor issue I encountered. The symptoms match exactly, but modern electrical systems can be tricky to diagnose without specific details.

Based on my latest service at 129638km, the alternator and battery terminals were tested and showed normal readings. The problem surfaced shortly after that checkup. Getting error codes P0562 and P0563 through my OBD scanner, suggesting system voltage issues. No aftermarket accessories installed. The battery is original from 2023, so relatively new. The car battery problems seem consistent regardless of temperature. Looking at the battery sensor issue you mentioned, makes sense given how the charging system is behaving. Did your workshop mention if this is a common problem with newer VW models? Wondering if I should push for checking the sensor when I take it in.

Based on my latest service at 129638km, the alternator and battery terminals were tested and showed normal readings. The problem surfaced shortly after that checkup. Getting error codes P0562 and P0563 through my OBD scanner, suggesting system voltage issues. No aftermarket accessories installed. The battery is original from 2023, so relatively new. The car battery problems seem consistent regardless of temperature. Looking at the battery sensor issue you mentioned, makes sense given how the charging system is behaving. Did your workshop mention if this is a common problem with newer VW models? Wondering if I should push for checking the sensor when I take it in.

Based on my latest service at 129638km, the alternator and battery terminals were tested and showed normal readings. The problem surfaced shortly after that checkup. Getting error codes P0562 and P0563 through my OBD scanner, suggesting system voltage issues. No aftermarket accessories installed. The battery is original from 2023, so relatively new. The car battery problems seem consistent regardless of temperature. Looking at the battery sensor issue you mentioned, makes sense given how the charging system is behaving. Did your workshop mention if this is a common problem with newer VW models? Wondering if I should push for checking the sensor when I take it in.

Based on my latest service at 129638km, the alternator and battery terminals were tested and showed normal readings. The problem surfaced shortly after that checkup. Getting error codes P0562 and P0563 through my OBD scanner, suggesting system voltage issues. No aftermarket accessories installed. The battery is original from 2023, so relatively new. The car battery problems seem consistent regardless of temperature. Looking at the battery sensor issue you mentioned, makes sense given how the charging system is behaving. Did your workshop mention if this is a common problem with newer VW models? Wondering if I should push for checking the sensor when I take it in.

Thanks for those specifics about your error codes and service history. After dealing with my Polo's battery sensor issue, I learned these P0562/P0563 codes often indicate voltage regulation problems rather than just a discharged battery. Had my alternator checked too when the symptoms first appeared, and readings were normal like yours. The real issue was the battery management system misreporting values to the car computer. The workshop confirmed this is a known weakness in recent VW models electrical system design. Since your battery is original and only from 2023, a complete battery drain this early definitely points to an underlying issue. The continuous voltage problems regardless of temperature strongly match the faulty sensor pattern I experienced. Would recommend specifically requesting: Battery sensor testing and calibration, Full electrical system diagnostic, Checking the voltage regulator The fact that problems started right after service suggests possible connection. In my case, the battery sensor actually failed shortly after routine maintenance too. The workshop later explained that even slight disturbance to the electrical system during service can sometimes trigger these sensor issues. Keep tracking those error codes, if you see any new ones, especially related to the charging system, post them here.

Thanks for those specifics about your error codes and service history. After dealing with my Polo's battery sensor issue, I learned these P0562/P0563 codes often indicate voltage regulation problems rather than just a discharged battery. Had my alternator checked too when the symptoms first appeared, and readings were normal like yours. The real issue was the battery management system misreporting values to the car computer. The workshop confirmed this is a known weakness in recent VW models electrical system design. Since your battery is original and only from 2023, a complete battery drain this early definitely points to an underlying issue. The continuous voltage problems regardless of temperature strongly match the faulty sensor pattern I experienced. Would recommend specifically requesting: Battery sensor testing and calibration, Full electrical system diagnostic, Checking the voltage regulator The fact that problems started right after service suggests possible connection. In my case, the battery sensor actually failed shortly after routine maintenance too. The workshop later explained that even slight disturbance to the electrical system during service can sometimes trigger these sensor issues. Keep tracking those error codes, if you see any new ones, especially related to the charging system, post them here.

Thanks for those specifics about your error codes and service history. After dealing with my Polo's battery sensor issue, I learned these P0562/P0563 codes often indicate voltage regulation problems rather than just a discharged battery. Had my alternator checked too when the symptoms first appeared, and readings were normal like yours. The real issue was the battery management system misreporting values to the car computer. The workshop confirmed this is a known weakness in recent VW models electrical system design. Since your battery is original and only from 2023, a complete battery drain this early definitely points to an underlying issue. The continuous voltage problems regardless of temperature strongly match the faulty sensor pattern I experienced. Would recommend specifically requesting: Battery sensor testing and calibration, Full electrical system diagnostic, Checking the voltage regulator The fact that problems started right after service suggests possible connection. In my case, the battery sensor actually failed shortly after routine maintenance too. The workshop later explained that even slight disturbance to the electrical system during service can sometimes trigger these sensor issues. Keep tracking those error codes, if you see any new ones, especially related to the charging system, post them here.

Thanks for those specifics about your error codes and service history. After dealing with my Polo's battery sensor issue, I learned these P0562/P0563 codes often indicate voltage regulation problems rather than just a discharged battery. Had my alternator checked too when the symptoms first appeared, and readings were normal like yours. The real issue was the battery management system misreporting values to the car computer. The workshop confirmed this is a known weakness in recent VW models electrical system design. Since your battery is original and only from 2023, a complete battery drain this early definitely points to an underlying issue. The continuous voltage problems regardless of temperature strongly match the faulty sensor pattern I experienced. Would recommend specifically requesting: Battery sensor testing and calibration, Full electrical system diagnostic, Checking the voltage regulator The fact that problems started right after service suggests possible connection. In my case, the battery sensor actually failed shortly after routine maintenance too. The workshop later explained that even slight disturbance to the electrical system during service can sometimes trigger these sensor issues. Keep tracking those error codes, if you see any new ones, especially related to the charging system, post them here.

Your diagnosis of a deeper electrical issue makes a lot of sense. Those P0562/P0563 codes appearing after a recent service definitely suggest something beyond a simple low battery condition. The battery sensor issue seems increasingly likely considering the symptoms and timeline. I will have the workshop specifically check the electrical system components you mentioned, focusing on the battery sensor and voltage regulator. The service records should help pinpoint if any maintenance work could have triggered these issues. I have documented all the electrical symptoms, error codes, and service history to show the workshop. Will request their complete diagnostic results and ask about any service bulletins related to battery sensor failures in newer VW models. Will post an update once I get the workshop report and actual diagnosis. The battery terminals look clean and tight, so hoping its just the sensor rather than more extensive electrical system problems. Thanks for sharing your similar experience, it helped narrow down where to focus the investigation.

Your diagnosis of a deeper electrical issue makes a lot of sense. Those P0562/P0563 codes appearing after a recent service definitely suggest something beyond a simple low battery condition. The battery sensor issue seems increasingly likely considering the symptoms and timeline. I will have the workshop specifically check the electrical system components you mentioned, focusing on the battery sensor and voltage regulator. The service records should help pinpoint if any maintenance work could have triggered these issues. I have documented all the electrical symptoms, error codes, and service history to show the workshop. Will request their complete diagnostic results and ask about any service bulletins related to battery sensor failures in newer VW models. Will post an update once I get the workshop report and actual diagnosis. The battery terminals look clean and tight, so hoping its just the sensor rather than more extensive electrical system problems. Thanks for sharing your similar experience, it helped narrow down where to focus the investigation.

Your diagnosis of a deeper electrical issue makes a lot of sense. Those P0562/P0563 codes appearing after a recent service definitely suggest something beyond a simple low battery condition. The battery sensor issue seems increasingly likely considering the symptoms and timeline. I will have the workshop specifically check the electrical system components you mentioned, focusing on the battery sensor and voltage regulator. The service records should help pinpoint if any maintenance work could have triggered these issues. I have documented all the electrical symptoms, error codes, and service history to show the workshop. Will request their complete diagnostic results and ask about any service bulletins related to battery sensor failures in newer VW models. Will post an update once I get the workshop report and actual diagnosis. The battery terminals look clean and tight, so hoping its just the sensor rather than more extensive electrical system problems. Thanks for sharing your similar experience, it helped narrow down where to focus the investigation.

Your diagnosis of a deeper electrical issue makes a lot of sense. Those P0562/P0563 codes appearing after a recent service definitely suggest something beyond a simple low battery condition. The battery sensor issue seems increasingly likely considering the symptoms and timeline. I will have the workshop specifically check the electrical system components you mentioned, focusing on the battery sensor and voltage regulator. The service records should help pinpoint if any maintenance work could have triggered these issues. I have documented all the electrical symptoms, error codes, and service history to show the workshop. Will request their complete diagnostic results and ask about any service bulletins related to battery sensor failures in newer VW models. Will post an update once I get the workshop report and actual diagnosis. The battery terminals look clean and tight, so hoping its just the sensor rather than more extensive electrical system problems. Thanks for sharing your similar experience, it helped narrow down where to focus the investigation.