VW Touran Climate Panel Dead, No Heat or AC Output

Had the exact same climate control issue on my 2014 VW Golf 1.4 TSI. The HVAC system completely stopped responding, similar to your symptoms. The root cause turned out to be corroded electrical connectors between the control module and main power supply. What initially looked like a faulty climate control panel was actually just poor connectivity. The fix required dismantling the center console to access and clean the electronic connectors. Found significant corrosion buildup that was interrupting the power flow to the climate control unit. This is typically not a serious repair when caught early, but leaving it unfixed can lead to more extensive electronic faults down the line. The repair involves: 1. Testing power supply to the control module 2. Cleaning or replacing electrical connectors 3. Checking ground connections 4. Verifying HVAC system communication A competent shop with VW diagnostic equipment should be able to pinpoint this fairly quickly. Make sure they specifically check the connections rather than just suggesting a full module replacement. The climate control panel being completely dead usually points to a power supply issue rather than mechanical HVAC components. Worth having this checked first before more extensive repairs are considered.

Thanks for sharing your experience. It definitely sounds similar to what I went through with my VW Touran last winter. After checking all the electrical connectors and temperature sensor connections, my mechanic found multiple points where the wiring harness had deteriorated. Did you end up having to replace any parts beyond just cleaning the connections? Would be helpful to know the final cost too. My repair was about 2 months ago and everything still works perfectly, but wondering if you had any issues pop up since getting it fixed.

Good to hear you got it sorted out. After my initial post, I actually took my Golf to the dealer since the issue kept coming back after cleaning the connections. They found a damaged section in the wiring harness near the climate control panel that was causing intermittent electrical faults. The fix was straightforward, they repaired the connection point and double-checked all nearby electronic connectors. Total cost came to 95€, which included diagnostic time and fixing the cable connection. No replacement parts were needed beyond some connector terminals. The climate control has worked flawlessly since then, no temperature control issues or dead displays. Its been about 8 months now with zero problems. The key was finding a technician who properly diagnosed the electrical system rather than just assuming the entire control panel needed replacement. When electronic faults like this occur, its usually worth checking all connection points in the surrounding wiring harness before replacing major components. Often its just a matter of finding and fixing the bad connection rather than a complete system failure.

The temperature sensor issue in my Touran turned out to be quite a learning experience. Finally went to a proper mechanic who actually knew VW systems. He spent about an hour testing the power supply and various electrical connectors before finding the real problem. The wiring harness had several worn spots causing intermittent electronic faults. Total repair came to 280€ including labor, with most of the work involving rewiring and securing the connections properly. My control panel now works perfectly, both heating and AC respond immediately. Pretty relieved it wasnt a complete system replacement like the first shop suggested. The mechanic also showed me where the electrical connectors had degraded, which helped explain why the climate control panel kept dying. Been running fine for 2 months now with no issues. Lesson learned, worth finding someone who actually troubleshoots the electrical system rather than just throwing parts at the problem. Could have saved time and money going there first.