Oil in the radiator, Oil Cooler?
I found oil in my radiator expansion tank about 4 weks ago(quite a lot actually). I immedaitely thought the worst, Head gasket. I brought it to my mechanic and he said there was an issue with the oil coilers on the 2.0 TDI engine and that I shouldn't worry. We replaced the oil cooler, even though the one he removed was actually only manufactured 12 months ago and seemed very new to have failed! The system was flushed 2 or 3 times and I've been careful driving since, only done 500 miles or so. I've also spoken to 2 other mechanics who agreed that the oil cooler was a problem with this engine and I shouldn't worry yet. I was told to expect some oil in the radiator for a few weeks after, as the oily residue from the pipes works its way out into the expansion tank, the highest point in the system. There is still oil in the expansion tank every day and its due to be flushed again this weekend. Has anyone else had this problem? I'm told its common but I can't relax yet with the car. I really don't want to go down the way of removing the head if its not 100% necessary as it could turn into a seriously expensive fix!! The car isn't down in power at all, isn't losing much oil(much more than normal anyway), isn't smoking at all, and theres definitely no water in the engine.
What would you do?