How to refill the DEF (diesel exhaust fluid) for an E70 BMW X535D.

[@borispeharda6331]

I did remove the plastic bag from the top of the alternator before restarting the engine :) I was nervous working on a car in front of a camera!

[@chrisb3784]

Thank you

[@davidsny1190]

Are they worth anything? If not I'm going to pull mine and throw them away

[@TrackTested]

unsure what value they have.