BMW 328i strong gas smell after fill up due to cracked fuel pump on BMW 328i

Some BMW 328i owners report experiencing a strong gas smell after fill-ups, which may be linked to issues with the fuel system and emissions control system. This problem can often stem from a cracked fuel pump or level sender unit, allowing gas to seep through and create a noticeable odor outside the vehicle. Additionally, some owners have noted that a failing catalytic converter can lead to unusual smells in the exhaust and may trigger the check engine light, signaling potential emissions control problems. It is crucial for owners to address these concerns promptly to maintain the vehicle's safety and performance.