Mercedes-Benz GLA250 shifting to neutral while driving and won't start despite new battery, with gas smell complaint unresolved on Mercedes-Benz GLA250

Some Mercedes-Benz GLA250 owners report experiencing serious safety risks when the vehicle unexpectedly shifts into neutral while driving, which can lead to a loss of drive power and increase the likelihood of a crash. Additionally, some owners encounter starting issues despite having a new battery installed, which may stem from various underlying problems. Transmission issues, such as low fluid levels due to leaks or insufficient maintenance, can contribute to this shifting behavior. Electrical problems, including a dead or weak 12v battery, may prevent the engine from cranking properly. Furthermore, mechanical faults involving components like the shift interlock solenoid, engine control unit (ECU), or transmission control unit (TCU) can also affect shifting and starting performance. Some owners have reported a gas smell, which could indicate a fuel leak or fuel system issues, posing a fire hazard. To resolve these concerns, it is crucial for owners to have their vehicles inspected by a qualified mechanic or authorized Mercedes-Benz service center to ensure safe and reliable operation.