Makoa6
Your on the wrong sub forum this is for the stereo and entertainment
section. You want to be on the general or motor sub forum.
I would suggest you get a Bimmergeeks diag cable and download and set up ista D and P as well as the Inpa coding.diagnostic and coding suite .
The following links will be some help.
Ista is like an diag and shop manual
Ista is the program that BMW used in there shops
for most of the life of the e90.
https://www.newtis.info/tisv2/a/en/
electical e90 pdf
http://www.google.com/url?sa=t&rct=j...,d.cGU&cad=rja
http://www.google.com/url?sa=t&rct=j...85464276,d.cGU
http://www.google.com/url?sa=t&rct=j...85464276,d.cGU
http://www.e90post.com/forums/forumdisplay.php?f=16
http://www.e90post.com/forums/forumdisplay.php?f=378
Might be the HPFP problem mentioned so much.
You need a BMW specific scanning system to get
all the codes .(Such as Ista d)
general forum
http://www.e90post.com/forums/forumdisplay.php?f=2
http://www.e90post.com/forums/showthread.php?t=333519
Mahlo.