Won't cause any damage but replacing them will restore Replacement will restore it to like new condition. However, the nozzle and its spray pattern graduallyĭiminish. The TDI nozzles could last anywhere from 50,000-200,000 miles and beyond with Injector body technical details, pop testingĪdjusting fueling through a vag-com (injection quantityĪlso see: 1000q: nozzle installation detailedĪs a wear item, the fuel injector tips (the nozzle) should be regularly TDI nozzle upgrade size FAQ and detailed info on replcement fuel injectors VW and Audi TDI nozzle FAQ and selection guideĭetailed nozzle size specifications and technical
