I'm no expert mechanically so seeking some further opinions. My M102 E200 has some cream in the coolant, you can just about see it on the top of the bottle itself. It has also consumed some oil, I should of checked how much as I topped it up today but it was certainly a noticeable amount on the dipstick. The oil filler cap is how it should be and the car drives well and doesn't seem to burn any oil - no blue smoke. Is this the head gasket as I'm suspecting?