2005 volkswagen passat gls

Car runs and drives fine, but car needs a new head, or an engine. Oil is going into the coolant reservoir.The car has had lots of work done on it ; new water pump, timing chain,transmission, clutch, head gasket,ignition coils, fairly new tires,new windshield,turbo,radiator,oil cooler,.pics attachedI have most of the receipts for all the work. Also, small dent below the fuel tank door, Pics attached

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