Utnorris: EK's seal sticker removal DOES NOT void warranty. It's been stated many times in this forum. It just tells that block is EK tested against leaks, not that removing it will void warranty.

tiborrr, Eddy: maybe it's worth to remove that sticker altogether? I've seen this EK sticker=warranty controversy several times too many. Imho it does more bad then good by growing misconceptions in most cases when majority of users wrongly assume by default that it's warranty related.