Delay in Showing New DEF Level?

Thanks.

In my experience with my truck and previous truck both had def level "gages" on the cluster they were not exactly accurate by any means. More of a rough estimate to say the least. Basically would indicate full till below 3/4 then drop down and stay steady till below half then drop below half to about 1/3 and usually stay there till the light came on to add.
Not sure how MB is setup and sorry cant answer your question directly.


