VW Tiguan TPMS Fault: Beyond Simple Air Pressure Fix

I had a similar TPMS issue with my 2020 VW Passat diesel last year. Being somewhat experienced with basic car maintenance, I first tried the usual reset procedure through the infotainment system, but the warning persisted despite correct air pressure in all tires. After checking with a pressure gauge multiple times and confirming the tire pressure was fine, I took it to my regular workshop. The diagnostic showed that one of the TPMS sensor batteries was completely drained. These sensors are integrated into the valve stems and communicate wirelessly with the car. The total repair cost was 280€, which included replacing the faulty sensor and reprogramming the system. Since then, the TPMS has worked flawlessly. Could you share: Whether all tire warnings appeared at once or gradually? If you notice any specific tire being flagged more than others? The exact error code stored in the system? Current mileage of your Tiguan? This information would help determine if you are dealing with the same sensor battery issue or potentially something else in the TPMS system. Make sure to have a proper diagnosis done, as driving with a malfunctioning TPMS can mask actual low tire pressure situations, which could be dangerous.

Had my car serviced last month at 91736km. After extensive testing, I found that the tire inflation warnings are accurate on three wheels, but the front right keeps triggering false alerts. The pressure gauge readings match the TPMS display for all tires except that problematic one. The odd part is the sensor fault only occurs at higher speeds, suggesting its not a simple battery issue. The dealer quoted 350€ for a complete sensor replacement, which seems steep compared to your repair cost. Did your workshop mention anything about speed-related sensor malfunctions during your repair? Wondering if theres a cheaper fix before committing to a full sensor replacement.

Thanks for those extra details about the front right sensor behavior, that speed-related malfunction pattern is actually quite familiar. When my Passat had similar issues, the workshop mentioned that intermittent failures at higher speeds often indicate signal interference or a deteriorating sensor connection rather than just a dead battery. After a closer inspection in my case, they found the air valve stem housing the sensor had developed a hairline crack, causing inconsistent readings above certain speeds due to vibration. A simple sensor battery replacement wouldnt have solved that underlying issue. For proper tire pressure monitoring, you definitely need reliable sensor readings at all speeds. While 350€ might seem high compared to my repair, the price difference could be due to the newer sensor technology in your 2022 model. One quick test you can try: When checking tire pressure with a manual pressure gauge, pay extra attention to the problematic front right air valve for any signs of physical damage or corrosion. Sometimes these visual clues can confirm if a full sensor replacement is truly necessary. Based on the symptoms youre describing, particularly the speed-dependent nature of the fault, a complete sensor replacement might be the most reliable long-term solution to ensure your TPMS functions correctly.

Thanks for sharing those details about the speed-related sensor issues. Those test results really help narrow things down. After doing a thorough tire check with my pressure gauge yesterday, I found some minor corrosion around the air valve stem, which matches what you described about potential physical damage. The 350€ quote makes more sense now considering its a newer TPMS sensor design. Given that the sensor fault only shows up at higher speeds and three tires are reading correctly, Im going to proceed with the replacement. Better to have reliable tire pressure monitoring than risk missing a real flat tire situation down the road. Just scheduled the repair for next week. Will probably post an update once its done to confirm if this fixes the intermittent sensor readings completely. Really helpful to hear about your similar experience with the cracked valve stem, saved me from wasting time on simpler fixes that likely wouldnt have solved the underlying issue.