I was watching YouTube videos about the Sprinter Diesels today and came across this one about the Mercedes system and DEF fluid.
Now I knew it would void e warranty if you mistakenly put Washer fluid in the DEF tank but what I DIDN’T KNOW was that you can’t just go to Walmart or the auto parts store and buy just any DEF.
It seems that Mercedes has fine tuned their system to the point that you need a very specific ratio in the mix.
Obviously if you have an issue this will be one of the first things they check and analyze.
Here’s a link to the short video…
https://youtu.be/8TICWSm7DBM