Bmw e39 "limp" mode and slow acceleration fixed. 

Could be mass air flow sensor also could be throttle position sensor. Or maybe the idle air control valve

I'll look into that

Good if you don't want that to happen. Bad if you want traction control..either way, it won't hurt

Didn't exactly know it was limp mode but all the googling I did suggest that was the problem since I could mat the gas and it didn't Rev much past 3000 rpm, and took a good while to get to 3000 rpm while under load.

incorrect. m50/M52/m54 are all in-line 6. m60/m62 are v8. Don’t spread misinformation

M52 is a inline 6 cylinders single vanos M54 is the new version with 2 vanos

Wrong

@@AusNav09 can you explaine

WOW didn't know u fairies 😮 got so hypersensitive over a typo 🤔😒😂🤣 funny cuz none of u probably even own a car. I happen to own a 01 530i and a 02 540i so i have both the m54 and the m62 so nice try