hi can anyone help me please i drive a 320i i brought my car in feb this year noticed oil was low it was over it service mile so i had service in may im ashamed to say have not checked my oil and water till friday as thought it would be ok, i heard what i thought was a ticking noise so checked oil and water both were empty i couldnt believe it, no sign of over heating and no oil light came on, what i did notice was at the bottom of the coolant tank was a milky substance my mechanic said its probly head gasket gone i filled both up and sat morning water was empty but oil was ok, i left it running for a good 15 to 20 mins and rechecked oil and water level once cooled down and the water level had gone down again anyone got any suggestions please