VW Nivus Mirror Heating Failure: Fix Guide

As someone with moderate experience in car electronics and similar issues, I had this exact problem with my 2018 VW T-Cross last winter. The mirror heating malfunction really impacted winter driving safety, especially during cold weather conditions. After checking the error codes, my workshop discovered it wasnt actually the heating element but rather a damaged wiring connection to the mirror controls. The cables had worn through due to constant mirror adjustments. The total repair came to 95€, which covered diagnosis and fixing the cable connections. The fix was relatively straightforward: Diagnostic scan to confirm the error codes, Removal of door panel to access wiring, Repair of damaged connection points, Testing of temperature control functionality To help with your specific case, could you share: Which error code your system is showing, Whether both mirrors stopped working simultaneously, If you notice any other electrical issues with the mirrors (like adjustment problems), Whether the issue started suddenly or developed gradually This information would help determine if youre dealing with a similar wiring issue or if its actually the heating element that needs replacement.

Last service was at 145000km and problem started shortly after. Both mirrors failed at the same time, error code P0613 shows up during diagnostics. No adjustment problems noticed, mirrors move smoothly. The electrical fault appeared suddenly during a cold morning. No gradual decline in performance before complete failure of the temperature control system. I checked the factory manual and the rearview mirror heating circuit should be getting 12V when activated. Currently reading 0V at the connection points. Wondering if there might be a blown fuse rather than heater element failure. The workshop quoted 280€ for mirror replacement but seems high if its just a wiring or fuse issue.

Thanks for those additional details about your Nivus mirror heating issue, this definitely helps narrow things down. Your description of 0V reading reminds me exactly of what I encountered with my T-Cross before the repair. Since both car mirror heaters failed simultaneously and you have zero voltage at the connection, this strongly suggests a power supply issue rather than failed heater elements. In my case, checking the fuse box revealed a blown 15A fuse for the mirror circuit, a much cheaper fix than the quoted mirror replacement. Key points that make me think its not the heater elements: Sudden failure of both sides, Complete loss of voltage (0V reading), Timing after recent service work, P0613 code which typically relates to power supply issues Before authorizing that 280€ repair, I would recommend: 1. Check fuse F22 in the main fuse box 2. Inspect wiring near where service work was done 3. Test voltage at the mirror control switch The vehicle safety systems like mirror heating often share common power circuits, so the simultaneous failure during cold weather operation points to a central electrical issue rather than component failure. Would your service records show if any work was done near the door wiring harnesses during that 145000km service?

Thanks for the detailed suggestions about the mirror heating problem. The service records show they did replace the door seals and some interior trim pieces during the 145000km maintenance. Just checked the fuse box and found F22 was completely blown, must have happened during the service work when they were handling the door panels. Replaced the 15A fuse for 5€ and now both mirrors are heating perfectly again during cold weather operation. Much better than paying 280€ for unnecessary mirror replacement. Will make sure to check the simple things like fuses first next time before assuming major component failure. Going to follow up with the service center about checking wiring connections more carefully after working near electrical components. At least the rearview mirror heating is working again just in time for winter driving season. Really appreciate the help in tracking down this car electronics issue.