I'm aware it's a fault of some mod. Even after I deleted 6GB of them and left with 14GB I still have that problem. Did anyone encounter it and can help me?
It's a mod problem, not a game's one. Your best bet is enabling mods in group and testing over. Of course, try with the ETKI mods first.
If you happen to figure out which mod it is could you post it here? I'm having the same problem. Trying to figure it out now.
ok, i'm in the process of enabling mods in groups of 10, I'll let you know when I'm done --- Post updated --- This one. It was on the very top of my list, and i started from the bottom end xD. If i started from to I would be done in 3 minutes, but I spent an hour on it. Great. --- Post updated --- in discussions on latest page there is a repaired version of the mod to install, https://beamng.com/threads/customizable-engines-and-drivetrains.25343/page-7
The solution is already here, maybe if you bothered to read the whole thread you would have found it.