DTC P0457-76: EVAP System Leak Detected (fuel cap loose/off) - Wrong mounting position: Action

WARNING: This page is about a different car, the 2018 Jaguar XE and 2017 Jaguar XE. However, it is still accessible from the selected car via links, so may be relevant.

NOTE: If purge valve related DTCs are also set, perform the relevant corrective action(s) first.

Refer to the relevant section of the service information and check the evaporative emissions system for leaks.
For additional information, refer to: DIAGNOSIS AND TESTING (13-JAN-2017) or DIAGNOSIS AND TESTING (13-FEB-2015) .