Engine Mechanical problem
2005 Volkswagen GLI Two Wheel Drive Automatic 80000 miles

i have a 2005 gli and the oil pressure ligth came out my car start it to loose power and make a noise inside the motor ...i replace the oil pump but now white smog is coming out ..do you guys know about this problem? maybe the haed gaskets or my turbo? my check coolant ligth came on at first then all these problems came out i know is my mistake for not paying attention...