[f30_335Mo]

Hello everyone! So I'm having a weird noise coming from the car, this problem have been there for a few months already, at first I tough valve cover leaking was the reason, a few weeks ago I replaced gasket but the problem still there then I found that the noise wasn't from engine bay, it is from under the car it is from just a little before transmission oil pan … now the problem is a little bit worse… the other day my friend borrow my car and he put gasoline but I don't know if premium so after I start the car it was shaking and almost wanted to shut of, minutes after I refill the thank with premium gas and put an octane booster, later on the car start to kinda accelerate by itself like doing a downshift that happens pretty much constantly and drivetrain malfunction message came twice… ! I'll try to leave a video here to see if someone can help me the car is completely out of warranty, it have cat-less Downpipe , jb4, belt tensioner was replaced not so long ago

[thejeremyman9]

Codes...?

[n55david]

Yeah.. it could be one of a hundred things.. would you luke me.to guess? What did the codes say?