T-Roc Wipers Dead: Switch Failure Diagnosis & Fix Guide

Had the same issue with my 2020 VW Taigo last winter. The wipers stopped suddenly during heavy rain, which was quite unsafe. The diagnostic revealed multiple potential failure points, the wiper motor had corroded connections and the wiring harness showed signs of water damage near the rain sensor. The root cause turned out to be moisture penetration through a deteriorated grommet, affecting both the wiper motor connections and the nearby electrical components. This is a known weak point in several VW models from that generation. The repair involved: Testing the wiring harness continuity, Replacing the corroded wiper motor connectors, Installing a new weather-resistant grommet, Recalibrating the rain sensor This was not a quick fix and required specialized diagnostic equipment. The wiper motor itself was functioning correctly, but the electrical connections were the main problem. Would strongly recommend having this checked at a certified workshop since improper repairs can lead to more serious electrical issues affecting the steering column controls and cruise control functionality. The symptoms you describe match exactly what happened in my case. This is considered a significant repair due to the electrical system involvement and safety implications.

Thanks for sharing your experience. My wiper system issue turned out quite similar to yours. The certified workshop also found moisture damage, though in my case they had to replace both the wiper motor and switch assembly. Been working perfectly since the repair. Would you mind sharing what the total repair cost was in your case? Just wondering if I paid a fair price at 580€ for parts and labor. Also curious if youve had any other wiper-related problems since the fix? My windshield wipers have been running smoothly for 6 months now, but I keep a close eye on how the wiper blades are performing after that episode.

Glad your wiper system got sorted out. I actually just had mine fixed last week, and it was much simpler than first expected. The mechanic found a loose cable connection behind the turn signal and wiper switch assembly. The total repair only came to 95€ for diagnosing and fixing the connection, much better than your full replacement cost. After the repair, my windshield wipers have been working flawlessly. The rain sensor responds properly now, and the wipers operate smoothly at all speeds. No additional issues have cropped up in any part of the system. Your 580€ repair cost seems reasonable considering they had to replace both the wiper motor and switch assembly. These components typically carry significant parts costs, plus the labor intensive nature of accessing and replacing them properly. Keeping an eye on wiper blade performance is smart preventive maintenance. Regular inspections can catch potential issues before they become major electrical problems again.

Thanks for the advice. After getting tired of unreliable wipers, I finally took my T-Roc to a certified workshop this week. The mechanic found the same moisture damage issues mentioned here, but luckily the wiper motor was still in good shape. They ended up replacing the corroded wiring harness and installing new weatherproof connectors. The whole job cost 290€, which seems fair given the diagnostic work and parts needed. The windshield wipers now work perfectly again, no more error codes or intermittent failures. Really glad I chose a proper workshop this time instead of my usual mechanic. They had the right diagnostic equipment and clearly knew what they were dealing with. The service advisor even showed me the damaged parts and explained how moisture had gotten into the system. Will definitely keep monitoring the wipers and cruise control functions over the next few months to make sure everything stays working properly. Learned my lesson about getting electrical issues fixed promptly rather than waiting for them to get worse.