49F0E2 Mercedes Fault Code :
Read the description of 49F0E2 in MCM21T and the engine lights up for MCM21T - MCM Motor Control Module code, there are some possible causes for it.
The signals from the component 'Charge air pressure sensor' and from the pressure sensor at the outlet of the component '10A21: Pneumatic Booster System (PBS) control unit' deviate from each other.