Mazda CX-3 burning metal and fuel smell with oil and check engine light issues due to faulty master cylinder and gasket replacement needed on Mazda CX-3

Some Mazda CX-3 owners report experiencing a burning metal smell, which may indicate serious issues such as a faulty master cylinder that requires immediate attention for safe driving. Additionally, some owners have noted a fuel smell near the rear passenger wheel well, potentially signaling a fuel leak or vapor escape that poses safety hazards. Others have reported an oil smell accompanied by blue smoke and decreasing oil levels, suggesting burning oil in the engine that necessitates a thorough inspection to prevent further damage. The check engine light, when combined with these smells, could indicate various problems like engine overheating or fluid leaks, emphasizing the need for prompt resolution to avoid potential vehicle damage. Furthermore, if gasket replacement is necessary, it is advised to have it performed by a qualified mechanic to ensure proper sealing and functioning of engine components. Overall, these symptoms point to serious underlying problems that require immediate professional diagnosis and intervention.