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2004 BMW 325 Oil in the radiator

Tiny
RFB
  • MEMBER
  • 2004 BMW 325
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 33,000 MILES
My mechanic found oil in the radiator. He said it was caused by a cracked head gasket. Is this possible?
Monday, October 25th, 2010 AT 6:31 AM

2 Replies

Tiny
KHLOW2008
  • MECHANIC
  • 41,814 POSTS
Hi rfb,

Thank you for the donation.

Yes, oil in radiator could be due to a cracked head or bad head gasket. This should be coupled with coolant losses and overheating issues.

The engine oil would most likely be contaminated with water as well.
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Monday, October 25th, 2010 AT 8:08 AM
Tiny
DOCHAGERTY
  • MECHANIC
  • 9,601 POSTS
Oil in the radiator could also be the heat exchanger for the automatic transmission is allowing oil into the cooling system.
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Monday, October 25th, 2010 AT 9:39 AM

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