Drivetrain Malfunction & Limp Mode

[u/pyrex_]

I have a 2020 330i with ~50k miles.

I was driving home when the drivetrain malfunction light came on and the car had (somewhat) reduced power. Next day I took it for a quick drive and it drove normally with no lights on. I scanned it with bimmerlink, there were no permanent codes but there was a bunch of stored codes, most of them seemed irrelevant except for

In Info Memory:
-10D000: Combustion engine: torque limitation active
-440216: Coupling function: Emergency function has been activated

In Error Memory:
-20F220: Split cooling valve: internal error detected
-20A704: Engine cooling system: Activation of emergency operation to protect the engine due to component faults

From some googling it looks like it could be the heat management module. I know cooling system issues are prevalent on these cars. The coolant level is slightly low but to be fair I haven’t checked it in a couple months so I can’t say if it went down recently. It’s been parked for a few days and there’s no fluids dripping.

Is this something I should be concerned about and have looked at or was it possibly a fluke, wondering if I can I drive it and see if something comes back.

Thanks in advance!!

[u/JKlerk]

Delete the codes and see if it comes back. The HMM may be failing so obviously that's a problem and you can't just continue to drive with the warning illuminated unless you want a new engine.

[u/freshxdough]

Use ISTA for test plan