I can contest to the fact of the head gasket problem on the M103. My car only has 100 k kms or about 63 k miles and the head gasket is needing replacement. By all indications such as the amount of oil on the block and belly tray it has been leaking for some time. It is an inevitable problem that you will face. And as you can see even a low mileage car can experience the failure early on. OM618: you can probably tell if your head gasket needs to be done. Oil leaks on the ground where you park as well as an oil block and high oil consumption are indicators. The best thing to do is monitor the oil level and calculate how much is is using per 1000 miles. With that kind of mileage though, I would suspect that the head may have been removed and the gasket replaced at some point during its life.