Def tank is full but dash reads 100 miles until no start see dealership please help

[Ricky t]

I just purchased a 2014 with a 140k and the def gage has been at less then a 1/4 tank since owning it for 4 months. Then I started getting the count down like 3 weeks ago. I dont know what to do as I’m a 1st time diesel owner.

 

[TC Diesel]

You can Try and reset the Gauge WITECH or Alfa are required to perform this, if it cannot be corrected it will be New DEF Pump/Tank $$$$, This engine is not for teething... its complex and dislike by many Shops and costly to repair.

 

[Cutch]

I just purchased a 2014 with a 140k and the def gage has been at less then a 1/4 tank since owning it for 4 months. Then I started getting the count down like 3 weeks ago. I dont know what to do as I’m a 1st time diesel owner.

See my lengthy post from a few weeks ago. Have a jump wire handy and have someone show you how to do it. You CAN bypass the no-start countdown!! Before you go too deep into parts and labour, seriously consider the delete