Question

2007 Mercedes Benz C230 Sport 6 Cyl with code P0073, what does it mean or what can it be?

Answer 1

P0073 Ambient air temperature sensor short circuit to positive

The ambient air temperature sensor at the front of the vehicle you can spend more time just testing this sensor,  just replace this sensor The ECM uses the ambient in relation to the intake air temperature sensor

Answer 2

P0073 MERCEDES-BENZ Code - Ambient Air Temperature Sensor Circuit High Input
Read more: https://www.autocodes.com/p0073_mercedes-benz.html