I'm new to this forum so hope I'm posting in the right place. I have a 2010 Cooper S Cabrio with 70k miles. The engine light came on, and since I can't face taking it to the shop AGAIN, I took it to the local auto parts store to see what fault codes popped up.
In summary:
24113 Internal Control Unit: System Voltage Low
10155 TANKLnpl_c Tank Level
P300 Random - Multiple Misfires Detected (no specific cylinder)
P0303 Misfire Detected (have this code on 3 of the cylinders)
11724 Fuel Cut Due to Super Knock (have this code on a couple of cylinders)
Weird thing is that the car is behaving normally, No performance issue, knocking, missing or charging issues. I have recently changed all the plugs and coils, HP fuel pump, just got it serviced and there were no problems. I run 91 octane.
Any ideas on what this might mean would be greatly appreciated.
Thanks!

 

two things:
1- if the battery is old, replace it.
2- clear the codes and see what comes back. sometimes the system acts weird when the voltage drops.

 

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