I have a mk4 mondeo 2.0 TDCi and I had a similar problem after I changed the fuel filter. Ford Mondeo / Vignale Club ; Mondeo mk4 2.0 2007 tdci hard starting when Mondeo Mk4.5 2.0 TDCI 140 HP - 2nd gearbox/engine issue. By Mihaita, Ford Model: Mondeo MK4.5 Ford Year: 2013 UK/Ireland Location: Other/NonUK Share; This material discusses in detail the engine oil used in the fourth generation Ford Mondeo (BD / BE / BG) 2007 6.2 / 0.63: 2.0 TDCi Duratorq: 5W-30: 6.45 - 5.65 1Ilm.