No start turns to crank no start

[Effduration]

Originally Posted by getty150

After the tow to my drive way and replacing of the following...

Freshly charged battery
Fuel pump
Alternator
Crank sensor
Starter
Ignition switch
Hot water valve (having fun now)

..I am left with code 27A4.

Let me look that up for ya.....Oh, It appears to be a code related to how the EWS (immobilizer) and DME are synched to each other.

Your symptoms sound like a failed alternator leading to insufficient battery voltage. If that is true, your battery light should have been on.

Did you test or measure volts from Battery or alternator before replacing them? or did you just light the fuse for the parts cannon.

I would search on how to re-synch EWS with DME, probably with INPA or some BMW-specific 2-way scanner, and see how that works.