My 2013 c180 has been intermittently displaying warnings on the dashboard regarding problems with the ABS and ESP systems, as well as the TPMS system. I expected the battery to be higher after only 15 hours of not driving the car, so I checked it using this site and found that it was 11.9 volts. After that, I purchased a Kingbolen OBD2 module, performed diagnostic tests, and the results are attached to this report.
I cleared the codes and ran the test again, but the problems persisted. Based on this, I'm considering that the issues could be caused by the battery, with or without the exception of the wheel speed sensor, which likely needs replacing. I have already tested the actuation tests for the steering column, wipers, etc., and they all worked without faults. I have never replaced the battery in a vehicle less than two years ago, so I have no idea how old this one is. Since the car is stop-start, I am also unsure about which battery to get and whether or not it requires coding.