Mercedes-Benz GLA250 gas smell in garage and upon heating system activation on Mercedes-Benz GLA250

Some Mercedes-Benz GLA250 owners report experiencing a gas smell in the garage and when activating the heating system, which may indicate serious underlying issues such as fuel leaks. These fuel leaks are often considered the most dangerous scenario and can stem from problems with the fuel system, emissions control system, or a failing catalytic converter. Additionally, some owners have noted that a gas smell outside the car when the tank is filled can sometimes be resolved by replacing the fuel pump seal, as the factory seal may not provide a proper seal. Investigations into potential defects causing strong gas odors have also been reported in related Mercedes models, highlighting the importance of addressing these concerns promptly for both safety and vehicle performance. It is advisable for owners to have a professional technician inspect their vehicle to identify any fuel leaks or issues with the fuel system.