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Originally Posted by 01 BMW_X5
Has any x5'er done the "heated collar for crankcase ventilation" - SIB 11 01 04 (062) 02/2004 modification to prevent frozen oil separator problems?
For those in colder climates I think this should be done for peace of mind.
I will be doing this soon.
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Its the insulated wraps that go around the hoses for your 4.4 There was a picture of it somewhere in one of the recent threads but I can't find it. Go to Baron they will have it.