[Supremebrandon]

Hi everyone. For a long time I had a dying battery that I attributed to cold weather. Finally got it changed and a week later died again. Realized there was a parasitic drain somewhere so I started disconnecting the negative terminal when not driving. Couple days ago I gave my car a good full throttle and it was crapped out, started flashing drivetrain malfunction. Made it home and shut off the car, when I started it again no start or crank showing starter malfunction and drivetrain malfunction. Although I don’t believe it’s a starter problem. Any ideas?

[wishbone]

What code(s) do you read?

[ooshnoo]

Did you register the new battery after you installed it?

Does your code reader offer any clues?

[pshovest]

Originally Posted by Supremebrandon

Hi everyone. ....... I gave my car a good full throttle and it was crapped out.......

How long have you owned?
Has any work on lubrication system, like OFHG or oil cooler, been performed?
Put battery on charger
Put socket on front crankshaft pulley bolt and confirm engine can be turned over. Only turn CW, not CCW, from front.

[Supremebrandon]

I get code 160504 for the PCV. But that shouldn’t cause a no crank issue, and it looks fine. The battery was also registered at BMW

[Supremebrandon]

Also, I had the code come up about a few days before the no crank, even with that code the car was running perfectly fine in terms of no bad idle or anything

[Orion4]

Have you verified the output of your alternator? Should be around 14-14.5 VDC (if I recall correctly).

[Supremebrandon]

Yes I had the alternator checked a little bit after changing the battery

[im_an_alien]

Can the motor be turned by hand?

[f30jadyn]

Could possibly be dealing with a seized motor. What engine do you have? Also have you done any maintenance like oil leak repairs or anything recently?

[Supremebrandon]

Im going to try to turn the motor by hand. 2014 BMW 435i n55