Tracking this down for son's GF. Her 07 justa has been having a burning smell and a little bit of smoke around the windshield cowl. I have not witnessed this smoke, but I did see the oil pan was coated in oil. I cleaned it off to see how soon it would return. She ended up at the dealer anyway and they replaced her pan gasket for a tidy sum. She is still having the same symptoms and now they tell her it is the oil filter housing gasket. $800. She is asking for my opinion. Is this a pain to work on? I never found any oil on the ground so I don't know if she was smelling oil or coolant. Thoughts?