Hello - This seems to be not that uncommon. DEF fluid is leaking near turbo on friend's 2015 Jetta. I didn't think it was DEF at first because I thought it was injected under car like on other years. I was wrong after telling owner it was definitely not DEF.
DEF tank is full but still warning that NO START will occur in 15 miles now (goes 15 then 600...) It was at 35 and would not start but I reset codes with generic OBD scanner and it started. DEF warning went off, then came back on and rather than 35m, it is now 15 to no start.
Could it be that injector is not injecting and causing pressure at the fitting, causing leak??? Can I test injector with ohm meter?
BTW -DEF had been contaminated with antifreeze a while back. Might that have caused injector to clog? (I posted about the antifreeze a couple weeks ago).
Any help appreciated.
And I was surprised that I was able to get car to start with $20 OBD scanner. I will post in OBD area in hopes that might help somebody prevent a tow someday.
Thanks! DX
Pic of Urea crystals. The larger accumulation was cleaned off with water. This is just 20mi worth.
Two TDI's -Friends '15 (going back to VW against my advice)
and his old '03 (now my daily driver)
tried to fix pic but you must open in new tab for some reason
DEF tank is full but still warning that NO START will occur in 15 miles now (goes 15 then 600...) It was at 35 and would not start but I reset codes with generic OBD scanner and it started. DEF warning went off, then came back on and rather than 35m, it is now 15 to no start.
Could it be that injector is not injecting and causing pressure at the fitting, causing leak??? Can I test injector with ohm meter?
BTW -DEF had been contaminated with antifreeze a while back. Might that have caused injector to clog? (I posted about the antifreeze a couple weeks ago).
Any help appreciated.
And I was surprised that I was able to get car to start with $20 OBD scanner. I will post in OBD area in hopes that might help somebody prevent a tow someday.
Thanks! DX
Pic of Urea crystals. The larger accumulation was cleaned off with water. This is just 20mi worth.
Two TDI's -Friends '15 (going back to VW against my advice)
and his old '03 (now my daily driver)
tried to fix pic but you must open in new tab for some reason
Last edited: