[NewToBeamers]

Hey, so my car recently was giving me troubles where the lights would flicker and the radio would turn on and off right before my car shutting down on me. It would shut down on me but I would always be able to put it in park or neutral to turn it back on. In my head I thought it was an alternator problem so I went ahead and changed the alternator. It ran fine all day until later that night where it shut off on me again, this time loosing power steering. I did what I usually do and drove it home. Then i remembered I had changed the battery about 7 months ago. I registered it as a new battery for the car but didn’t have what I needed to updated it, as it went from the original battery to a agm battery with more amps. So I bought a bimmer link subscription to go ahead and update it. Updated it, ran for a solid two days fine then out of nowhere while pulling out of a parking spot it completely shuts off on me. I went through the struggle of having to figure out how to get my trunck open, because the pull down latch for the back seats is in the trunk and we couldn’t jump the car. Once I got that all figured out we tested the battery and it was good. So as of now I am pretty much lost ngl. Can anybody help? Or do any of you have any useful information I might need? I’m attaching a picture of my last bimmer links obd scan. 2011 328i xdrive e92.

[NewToBeamers]

Damn no input on this?🥲

[ptpending]

your positive or negative clamp on battery may be not very firm fixed

[NewToBeamers]

Originally Posted by ptpending

your positive or negative clamp on battery may be not very firm fixed

First thing I checked once I got into the trunk. The one thing I did find strange is when I went to put on my negative terminal again. I didn’t spark at all even though the battery gots volts.

[NewToBeamers]

Update on the whole situation, after doing some research on this whole subject I went ahead and bought a new ibs with all new connections. Meaning new ground wire. Installed it hoping atleast the lights would turn on or something but to my expectations nothing happened. Now I’m kinda stuck, I’m reading up on the other codes. 2E7C: 0x2E7C Bit serial data interface, signal in particular. I’ve read that “the alternator, oil level sensor, water pump, and intelligent battery sensor all communicate on the bit serial interface.” So would I basically have to check all of these connections individually? Like I said tho, the car has no power going through it. All connections to the battery have been checked both ground and live. Battery has a good 12v. Doesn’t spark when I rub the negative cable on it. I’m genuinely stuck and would appreciate any input.

[Tambohamilton]

Is there power at the jump start points in the engine bay?

[NewToBeamers]

Originally Posted by Tambohamilton

Is there power at the jump start points in the engine bay?

No

[Tambohamilton]

Check the connections/cables where they pass through the wall of the battery box. I think you need to pull back the rear wheel arch liner to see them.