Help us help you. By posting the year, make, model and engine near the beginning of your help request, followed by the symptoms (no start, high idle, misfire etc.) Along with any prevalent Diagnostic Trouble Codes, aka DTCs, other forum members will be able to help you get to a solution more quickly and easily!
HELLO. WORKING ON 2001 BMW X5 3.0 MANUAL TRANS. NO OIL COOLER THAT I CAN SEE NOR FIND. EVEN CHECKED WITH THE OIL FILTER HOUSING GASKET. SUSPECTING HEAD GASKET DUE TO THE FACT THERES NO TRANS OR OIL COOLER ACCORDING TO THE BMW DEALERSHIP. WONDERING IF WATERPUMP COULD BE MIXING THROUGH A GASKET ON THE TIMING COVER INTERNALLY POSSIBLY??. NOT TOO FAMILIAR WITH THESE ENGINES. COMPLAINT WAS NO HEAT AND FOUND THE MILSHAKE THROUGH OUT THE ENTIRE ENGINE AND COOLING SYSTEM. THANK YALL SO MUCH FOR THE INPUT...
I also am not very familiar with BMW engine design, however I think a leaking water pump, if it could leak coolant into the oil, would only fill the oil pan with milkshake, it wouldn't allow oil to enter the radiator.
I think oil cooler as you suspected, or head gasket to be much more likely.
Hey there. Yeah Customer opted for NEW Engine! has over 230k on original motor haha. Def Time with these engies if not maintained well. Thank You for The Reply and Merry Christmas.