2004 VW Jetta TDI - Fault Code P0671: Glow Plug Issue Explained
Hello, I'm experiencing fault code P0671 on my 2004 Volkswagen Jetta TDI. The code appears as '17055 reference P0671 035'. Can someone please explain what this error means in terms of engine performance or required repairs? Thank you for your help! Dauna50
dauna50 wrote: Hello, I'm experiencing fault code P0671 on my 2004 Volkswagen Jetta TDI. The code appears as '17055 reference P0670 035'. Can someone please explain what this error means in terms of engine performance or required repairs? Thank you for your help! Dauna50 Note: Code P0671 typically indicates an issue with the glow plug system. In North American vehicles, especially older TDI models like the 2004 VW Jetta TDI, this code often points to a problem with Glow Plug #1. However, diagnostic testing may reveal that Glow Plug #4 is actually faulty — this has been observed in my shop experience. Always verify with actual testing before replacement. Peace.