oil leak on 2002 BMW 745i

I recently went for an oil change. the technician informed me that I had a small oil leak in the front underneath the vehicle.What could it be?

Asked by for the 2002 BMW 745i
2 answers
an oil leak in the front underneath could be from alot of things, the most common is the oil pan gasket seal or the trans. pan gasket seal leak, also the front and rear main seal, or crankshaft seal leak
the headgasket is gone and prossibly the head is cracked