that is the generic code for O2 sensor circuit for bank 1 sensor 1

you relaize these codes don't actually infer what item needs to be replaced they are an indicator in which direction to investigate.

if your car has high mileage and original O2 sensor, then a high probability that replacing that O2 sensor will either fix or help.

have you searched for what others have done with a P1030 on a C280?