DTC B115C-7A: Transfer Fuel Pump - Fluid leak or seal failure: 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 additional fuel level related DTCs are also set, perform the relevant corrective action(s) first.

Using the Jaguar Land Rover Approved Diagnostic Equipment, check the central junction box for fuel level related DTCs and refer to the relevant DTC index
Check the integrity of the jet pump
Check the integrity of the suction port pipe