Yes, it’s that! The  “black death”. I don’t know why they call it that way, when it’s not really deadly at all. Just need a good trick and it can be off in a short matter of time. Do you know, how i did it? Put it in the comments.

I had to do the seal replacement on 2 injectors only. Yet. It has 125000 miles on the clock and still running nice. Somewhere i have seen an article where the owner takes them out regularly after certain miles and changes all the seals. Now that vehicle is over 500.000 miles. I’m not sure about that this is a good idea though.