[BrokenMostWeeks(BMW)]

I have a 2012 BMW 650i xDrive. I was driving it when the engine shut off and shifted into neutral. It gave me a Ignition Malfunction warning and told me not to stop the engine, because it may not start again. It will no longer start, sometimes it cranks and sounds like it's about to start and other times it sounds like it tries to crank for 1/4 second and gives up. Since then I have manually put the transmission into neutral, replaced the spark plugs, and crankshaft position sensor. Since then it sounds like it's closer to turning over, but has now given me a drivetrain Malfunction error. With a cheap scanner I found the only code is U1190. I'm thinking the TCM has failed, but was looking to see if anyone has dealt with this before or have any other suggestions on what it could be.

Here is a link to the engine trying to turn over, this is the best attempt I've had.
https://drive.google.com/file/d/1Vd1...ew?usp=sharing

[Prince958]

Hi guys new to the forum please forgive me if this isn’t the correct place to post I recently purchased a bmw 640d 2013 relatively low miles 70k had it just over a month now great car love it tbh but now seem to be getting drivetrain error message I’m not exactly technicaly minded so not sure of the issue I do have an obd but it isn’t a Carly or bmw independent 1 but plugged it in and got some codes pop up is anybody able to tell me what they are I’m not about to go try fix it myself but would rather have some sort of indication before I take it somewhere cheers codes are p28cd(00) p244c(00) p27B9(00) thanks in advance

[BrokenMostWeeks(BMW)]

I don't think this is the right place, but I'm also new to the forum and wasn't sure if this was the correct place.

For your codes P28CD(I can't find this one), P244c(Exhaust Temperature Too Low For Particulate Filter Regeneration (Bank 1)), and P27B9( Pressure Control Solenoid 'N' Performance/Stuck Off).

Are you experiencing any other issues with the vehicle?

[Prince958]

Hi mate code only popping up for 10 or so seconds then seems to disappear was hoping it would be a simple maf sensor change or something similar but probably knowing my luck it wouldn’t be lol

[BrokenMostWeeks(BMW)]

Maf sensor seems like a good place to start, it should be pretty cheap and easy to replace.

This website seems like it has some good information:
http://p27b9.engine-trouble-code.com

[Prince958]

Spot on mate yea il have a look at that 1 bud have you any luck with yours yet

[BrokenMostWeeks(BMW)]

Not yet, I'm working on downloading INPA and buying a K-dcan cable. I'm hoping that will give me some more specific information on what is actually wrong.

I plan on checking my fuel pressure, Ignition Coils, and double check all my fuses today.

[Prince958]

Oxygen sensor maybe