VW Touran HVAC Blower Motor Dies: Zero Airflow Fix

Had the same issue on my 2020 VW Tiguan. The complete ventilation failure points more toward a blower motor problem rather than an air quality sensor fault or climate control sensor issue. When this happened, the diagnostic revealed two potential causes: either the blower motor itself failed or the blower motor control module was defective. In my case, the control module had corroded connections that needed cleaning and reseating. The repair involved: Testing the blower motor resistance, Checking all cable connections, Removing the glove box for access, Inspecting the control module, Cleaning connector terminals This is not typically a serious repair unless the entire blower motor needs replacement. The most common fix involves resolving connection issues or replacing the control module. The cabin air sensor and auto recirculation functions would still allow minimal airflow if they were the problem, but a complete lack of air suggests a more fundamental blower issue. Best to have it checked soon, as driving without proper ventilation can lead to windshield fogging and reduced visibility.

Appreciate your detailed explanation. I actually faced a similar ventilation problem with my Touran last winter. The blower completely died and the diagnosis matched what you described. Makes me curious though, how much did the repair end up costing in your case? After fixing mine, I noticed my cabin air sensor started acting up, making the auto climate control a bit temperamental. Did you experience any follow-up issues with the HVAC system after your repair was done?

The repair for my Tiguan turned out simpler than expected. When I took it to the mechanic, they found the AUC sensor fault was causing erratic behavior in the auto recirculation system. The fix only cost 95€ since it was just a faulty cable connection to the air quality sensor that needed attention. Since getting that sorted, the HVAC system has worked flawlessly. No more issues with the blower or auto climate functions. The cabin air monitoring now responds correctly to outside conditions, and the ventilation maintains consistent airflow. My earlier concerns about needing a complete blower replacement were fortunately unfounded. Looking back, catching these sensor issues early probably prevented more extensive damage to the climate control system. The auto recirculation now engages smoothly without any of the temperamental behavior you mentioned experiencing.

After experiencing those concerning ventilation issues, I finally took my Touran to the repair shop last week. The mechanic found the blower motor control module had failed, just as some forum members suggested. They also discovered a loose connection affecting the climate control sensors. The total repair came to 280€, which included fixing both the control module and resolving the sensor issues. Much better than the 800€ I feared it might cost for a complete blower replacement. The auto recirculation system now works perfectly, and the HVAC sensor readings are consistent again. Best decision was not waiting longer, the mechanic mentioned the faulty control module could have eventually damaged other climate control components. No more issues with airflow or temperature regulation since the fix. The cabin stays comfortable and the windshield clear, even during temperature changes.