I just attempted this, but on an N55, and failed/gave up.
I tried to do it without removing the intake manifold, which was perhaps a bad decision. I got as far as removing the smaller nut connecting the fuel line to the pump, but it was just too tight a space to continue, and I didn't want to risk breaking the fuel line, so I reversed my steps and put everything back together...
Also, putting things back, I also could not get one of the bolts of the throttle body to screw into the intake properly. It felt as though it kept going on cross threaded.
I'll take it to a mechanic and get them to do it
