Q7 TPMS Warning Persists Despite Proper Tire Pressure

My Audi Q5 2020 had a similar TPMS issue last year. As someone with some hands-on experience maintaining cars, I first tried the basic tire pressure reset procedure, but the warning kept coming back. After proper tire check and confirming correct tire inflation at all four corners, I took it to a workshop. The diagnosis revealed depleted TPMS sensor batteries. These tire pressure sensors communicate wirelessly with the car, and when their batteries get weak, they can send faulty signals or no signals at all. The fix involved replacing the affected sensors, which cost 280 Euro including programming. Since then, the system has worked flawlessly with no false warnings. For a more specific diagnosis of your Q7, could you share: Whether the warning appears for specific wheels or all of them, If the warning starts immediately after driving or after some time, If you recently had any tire work done, The exact error code from the system if available These details would help determine if your issue matches what I experienced or if its something else affecting the air valve sensors.

Last serviced at 79820KM and experiencing the exact same TPMS issue on my Q7. The warning appears for all wheels out of nowhere after about 10 minutes of driving. I got the sensors checked at a workshop and found that the TPMS sensors were showing signs of electronic interference. After thorough pressure gauge testing showed normal readings, they discovered that a faulty module in the tire pressure monitoring system was causing incorrect signal interpretation. The flat tire warnings kept appearing despite proper air pressure in all tires. It was fixed by replacing the central TPMS control module and recalibrating the system. The repair cost came to 320 Euro and resolved all false warnings. No more error messages since then, and the system now accurately monitors tire pressure.

Thanks for sharing your experience. Those faulty TPMS control modules are a known weak point in our Q7s around that mileage. My car also started showing unusual low tire pressure warnings across all wheels after hitting 75000KM, despite perfect air pressure readings on my gauge. Initially thought it was just depleted sensor batteries like many cases, but the diagnostic scan pointed to the control module. The mechanic explained that electronic interference is pretty common when these modules start failing. The symptoms matched exactly, false warnings about 10 minutes into driving, affecting all wheels out of nowhere. Paid about 340 Euro for the module replacement and recalibration. The tire pressure monitoring has been spot-on since the repair, with no more phantom warnings or error messages. Worth noting that this fix tends to last much longer than just replacing individual sensors. Sounds like you got the right diagnosis and repair. The 320 Euro repair cost is in line with what these TPMS module replacements typically run.

Thanks for following up with your repair details. My Q7 has been running issue-free since the TPMS module replacement. Its good to know this seems to be a pattern with these cars around 75000-80000KM. The tire pressure monitoring now works exactly as intended. When checking with my pressure gauge last week, all readings matched perfectly with what the system displays. No more ghost warnings or error messages about low tire pressure. The 320 Euro repair was worth every cent considering how critical proper tire inflation monitoring is for safety. For anyone else facing similar issues, getting a proper diagnostic scan is key, dont just assume its faulty air valves or individual sensors. The control module replacement resolved all the electronic interference problems that were causing those unusual warnings. Glad we could compare notes on this fix. The symptom pattern of warnings appearing after 10 minutes matches exactly what I experienced, and the repair solution was identical.