VW Touran Power Windows Failure: Common Fix Guide

Had the same problem with my 2016 VW Tiguan when all power windows stopped working simultaneously. The automotive repair shop diagnosed it as a faulty main window switch module in the driver door panel. This is actually quite common in VW models from that generation. The issue was not the window regulator or motors as initially suspected. The main control unit in the driver door handles all window operations, and when it fails, none of the windows work. The repair involved removing the door panel, replacing the complete switch assembly, and reprogramming the new unit to communicate with the car computer. While not a major mechanical issue, it requires specific diagnostic equipment and programming knowledge. A general mechanic might misdiagnose this as individual window motor failures, which would lead to unnecessary repairs. Make sure to visit a shop with experience in VW electrical systems, as they will have the proper diagnostic tools to confirm if its truly the main switch module before starting any repairs. The fix completely resolved the issue and the car window controls have worked flawlessly since. The error code also disappeared from the computer system after the repair was completed.

Thanks for sharing your experience with the window control unit. The issue sounds identical to what I am experiencing right now with my Touran. Especially since you mention that the error code disappeared after fixing the main switch module. Could you remember roughly how much you paid for the complete repair job including the window switch assembly and programming? Also, has everything worked properly since the repair or did you notice any other electrical issues? I will definitely look for a specialized VW shop as you suggested, since the window regulator and motor diagnosis from my local mechanic did not seem quite right.

After my last power window repair, I can confirm the fix was completely successful. The faulty window regulator diagnosis from my local mechanic was incorrect, it turned out to be the switch module just as the VW specialist suspected. The total cost came to 200€ for parts and labor, including programming the new power windows control unit. Everything has worked perfectly since the automotive repair job six months ago. No electrical issues or window problems have occurred, and all four windows operate smoothly. The car computer error code cleared immediately after the repair and hasn't returned. Getting it fixed at a VW specialist was definitely the right choice. They quickly identified the actual problem instead of unnecessarily replacing window motors or regulators. Their diagnostic equipment made all the difference in pinpointing the exact issue.

I took your advice and went to a specialized VW service center for my window problems. After running diagnostics, they confirmed it was indeed the main switch module causing all power windows to fail, not the regulator motor issue my local shop suggested. The repair took about 2 hours. They had to remove the driver door panel to access and replace the control unit. Total cost was 280€, which included the new switch assembly, programming, and labor. While higher than expected, it was worth avoiding unnecessary window regulator replacements. All windows are now working perfectly and the error code has disappeared from the car computer. The automotive repair shop also performed a full electrical system check to ensure there were no related issues. Really glad I asked for advice here before proceeding with the original, incorrect diagnosis.