VW Arteon A/C Blower Dead After Recent Service

Had a similar issue on my 2017 VW Passat TSI. The symptoms match what you describe, climate control panel working but no actual air flow. While AUC sensors and cabin air sensors can cause HVAC system problems, your symptoms point more toward an electrical connection issue. In my case, the blower motor wiring harness connector had corroded and lost proper contact. The recent shop work could have disturbed these connections. Common failure points to check: Blown blower motor fuse, Loose or corroded wiring connections at the blower motor, Failed blower motor resistor, Faulty blower motor This turned out to be a moderate repair requiring removal of the lower dash panel and blower motor assembly to access and replace the damaged connector. Not a critical safety issue but definitely impacts comfort and proper cabin ventilation. Before assuming air quality sensor problems, have the basic electrical connections inspected first. The repair involves specialized tools to access components behind the dash, so professional diagnosis is recommended.

Thank you for sharing that, dealing with the same blower motor problem currently in my VW Arteon. The AC behavior is identical, though my HVAC sensor system and auto recirculation seem to work fine. Would you mind sharing what you ended up paying for the repair? Also curious if youve had any recurring problems with the air conditioning sensor system or wiring since getting it fixed? Planning to take mine in next week and trying to budget for the work.

The blower motor wiring repair on my VW Passat turned out well. The mechanic traced it to a faulty cable connection affecting the auto recirculation system and BMW AUC functionality. Total cost was 95€ for fixing the defective plug connection. Since having the repair done, the HVAC system, including all cabin air sensors and auto features, has worked flawlessly. No more issues with the odor sensor or climate control functions. The investment was worth it to restore proper operation of the whole air conditioning system. Your symptoms match mine exactly, so you might be looking at a similar straightforward wiring fix rather than a more complex sensor replacement. The auto recirculation and air quality monitoring should return to normal once the electrical connection is restored. Common Repair Costs: Wiring/connector repair: 90-120€, Full blower motor replacement: 300-400€, AUC sensor replacement: 200-250€ Focus on getting the wiring checked first as this is often the root cause rather than sensor failure.

Thanks for the advice. I took my Arteon to the shop last week and they confirmed it was indeed a wiring issue. The connector had worked loose during the previous service, causing the blower motor to stop. The repair was pretty straightforward, they fixed the connection and checked all the air conditioning sensors while they were in there. Everything is working perfectly now including the auto recirculation and air quality monitoring. Total cost came to 110€ for labor and parts. Really glad I had this checked before assuming I needed an expensive blower motor or AUC sensor replacement. The entire HVAC system is back to normal and the cabin stays comfortable again. Definitely worth getting it properly diagnosed rather than trying unusual fixes. Looking forward to having working AC for the summer months ahead. Thanks again for helping point me in the right direction with troubleshooting this!