I have oil coming into my coolant bottle for a while. got a new engine and the same thing is happening. what might be the cause of this?

Asked by May 03, 2015 at 12:04 PM about the 2005 BMW 1 Series 118i

Question type: Maintenance & Repair

I have replaced the radiator.  I have to get it flushed out every 2-3 weeks depending on
how much I drive it.

4 Answers

275

leaky head gaskets or cracked engine block

1,135

My best guess would be something relating to the head gasket.

the answer to that change your oil cooler boss its the cause

a cooler unit under the radiator which cools transmission oil

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