Oil in coolant after engine replace

[JAY_KL]

Hi UDM lovers,need some info, replaced a recond engine after the original one got totalled. problem now is i'am seing traces of oil in the coolant.. is this normal? I have flush the coolant and even replaced with a new radioator but still i can see spots of oil inside coolant and also milky on the cap. no heating issues here help....

 

[haywire]

Cracked head?

 

[vincent]

if your car is a e46 and have a auto oil cooler ,if my guess is correct it will be the oil cooler pecah .
mine just pcah last week and my radiator is full of auto oil . and the worse thing is the damage to the radiator and all hoses . the rubber hoses expanded , the radiator also pecah . not forgetting damage to my wallet as well . i change all the coolig system 1 1/2 year ago and now this happen i have to spend and change it again

 

[Strider74]

Hi Jay,

Refer to this thread, might have similar case as yours.

http://www.bmwclubmalaysia.com/forums/showthread.php?32275-milkly-sludge-at-radiator-cap-E46-328i