Audi Washer Heater Fix: Winter Spray Nozzle Solution

Having some experience with winter driving issues, I encountered a similar problem with my 2007 Audi A6. The washer motor was running but the clogged nozzles and heater malfunction caused the same symptoms during cold weather. After checking fuses like you did, I took it to a workshop where they diagnosed a faulty connection between the heating element and its power supply. The cable connector had corroded over time, preventing proper operation of the washer heater system. The repair involved replacing the damaged connector and cleaning the nozzle system, costing 95 Euro in total. The fix has worked perfectly since then, with no more frozen washer fluid issues even in freezing temperatures. To better assist with your specific case, could you provide: Current mileage on your S6, Type of washer fluid you are using, Whether the problem occurs immediately or after some driving time, If you notice any unusual sounds from the washer motor This information would help determine if your issue matches what I experienced or if it might be something different.

Thanks for sharing your experience. My S6 just had its service at 39245 KM and they didnt spot this issue. The washer fluid appears to freeze almost immediately when temperatures drop below freezing, even with winter-grade washer fluid installed. The washer heater seems to be the culprit since the washer motor runs normally but the fluid remains frozen. The connection issue you described sounds similar to my symptoms. No unusual sounds from the washer motor, it hums normally when activated. I will have the connectors checked before replacing the entire heater unit.

Thanks for the additional details about your S6. Since my A6 repair, I have been paying closer attention to the washer heater system, especially during winter. The symptoms you describe are nearly identical to what I experienced, normal motor operation but frozen fluid despite using winter-grade solution. Given your low mileage, the connector issue is even more likely than a complete washer heater failure. On my car, the workshop found that water had seeped into the connector housing over time, causing corrosion that prevented proper current flow to the heating element. Before replacing the entire unit, have them check: Connector terminals for corrosion or damage, Wiring continuity from the fuse box to the heater, Heating element resistance values, Windshield washer fluid lines for any blockages The repair should be relatively straightforward if its just the connector. In my case, the windshield wipers and spray system worked flawlessly after fixing just that connection, no need for a complete heater replacement which would have cost significantly more.

Thanks for the thorough reply about the electrical connections. My mechanic checked today and found exactly what you described, corroded terminals at the washer heater connector. The winter driving conditions and salt had deteriorated the connection over time, even with my relatively low mileage. They cleaned the terminals, applied dielectric grease, and reconnected everything properly. Total cost was 85 Euro for labor and materials. The system now works perfectly even in freezing temperatures. No more issues with clogged nozzles or frozen fluid. I really appreciate you sharing your experience, it saved me from unnecessarily replacing the entire heating element assembly. For anyone else having similar winter washer problems, definitely check those connections at the heater unit before assuming worst case scenarios. I will keep using winter-grade washer fluid and have added checking these connections to my regular maintenance routine to prevent future issues. The fuse box inspection I did initially was a good start, but the real problem was much simpler to fix than expected.