The vehicle was going into limp mode after varying lengths of driving.

Initial fault codes U2300:55-2A and U2300:56-2A were logged and would not clear. These raised suspicion but did not appear directly linked to the limp mode condition. After further scanning with different tools, a P2599 fault code (Turbocharger Boost Control Position Sensor "A" Performance – Stuck High) was identified as the true cause of limp mode.