P0401

The vehicle is displaying a P0401 error code, indicating an issue with the Exhaust Gas Recirculation (EGR) system on a BMW 3 Series E90/E91.

The P0401 code indicates that the exhaust gas recirculation (EGR) flow is insufficient in a BMW 3 Series E90/E91 (2005-2012). This can lead to increased emissions and potential performance issues.

The BMW 3 Series F30/F31 (2012-2019) is displaying a P0401 trouble code, which indicates a problem with the Exhaust Gas Recirculation (EGR) system.

The P0401 code indicates insufficient flow in the exhaust gas recirculation (EGR) system of a BMW 3 Series F30/F31 (2012-2019), which can lead to increased emissions and potential engine performance issues.