Mercedes-Benz C300 grinding noise and locking issue when reversing after service update on Mercedes-Benz C300

Some Mercedes-Benz C300 owners report experiencing a grinding noise from the bottom of the car during tight turns at slow speeds, which may indicate underlying mechanical issues. Additionally, some drivers have noted grinding or humming noises while driving, suggesting potential problems with the vehicle's systems. Specific reports also mention a grinding or scraping noise from the front driver's side wheel during certain maneuvers. Furthermore, owners have encountered locking issues when reversing after a service update, potentially linked to transmission problems or the torque converter. In some instances, the gear shifter module may need attention, requiring access to the sensor by removing the center console. Given these concerns, it is advisable for affected owners to consult a certified Mercedes-Benz technician for accurate diagnosis and resolution.