My granddaughter parked the car went into the house for a minute came out and the did nothing.  I went over and all it did was turn the fuel pump on.  I figured it was the starter.  I ordered one and put it on.  No go.  It could be the ignition switch  I bought one put it in.  No go.  Fuses maybe.  No go.  I watched one of those videos in self help and went ahead and bought a new starter relay.  No go  Checked the battery.  No go.  Does anybody know the magic trick to get power to the starter so I can drive this thing?  It's a 2011 BMW 328i Convertible/Hardtop 3L engine.  Sure could use some help what ever is wrong with this thing is so simple a monkey could fix it.  But I'm not a monkey. 

Hi Roger

Welcome to the Forum

You really need a diagnostic session to find the culprit, the list of "could be's" is long and expensive if your swapping bits 

Crankshaft sensor, Fuel rail pressure sensor, Inhibitor switch on the gear selector (try putting it in N and starting) Pin failure in the ECU 

As I say a code read should show up where the issue is

Hope this helps not hinders 

Dave

Have you got a spare key? 
my x5 key transponder failed and the car just wouldn’t start. 
 

I have just replaced the ews, dme, keys and locks as well as the ignition switch and barrel.

if you have a second key, try that first. 
buy pa soft 1.4 scanner software off eBay and ask the car if that fails.

….. I have invested in spare keys just in case it goes again.