Mercedes-Benz GLC300 shuts off while driving and will not restart on Mercedes-Benz GLC300

Some Mercedes-Benz GLC300 owners report experiencing issues where the vehicle shuts off while driving and fails to restart. These problems may be attributed to a faulty ignition starter, which requires service only from authorized Mercedes technicians. Additionally, a malfunctioning fuel pump has been identified as a potential cause, with some dealerships offering free replacements for this issue. Battery-related problems are also common, particularly in older batteries approaching the 5-year mark, which may necessitate replacement. Furthermore, some owners have noted that the eco start/stop feature could improperly manage the AC, leading to engine shutdowns. Lastly, concerns regarding transmission or traction control systems have been reported, which can result in unexpected vehicle behavior. It is recommended that affected owners seek inspection from a qualified mechanic or visit a Mercedes-Benz dealership for a comprehensive diagnosis and repair to ensure safety while driving.