Mondeo's running a 2.0L TDCi have the Ford PowerShift six-speed dual-clutch automatic transmission DCT450 - they require a very specific oil for the transmission - link attached for reference
https://penriteoil.com.au/products/dct-fluid-full-syn
Don't forget to have the external filter replaced too link attached:
https://www.ebay.com.au/itm/Genuine-...wAAOSwu-JfMqLy