We know the feeling . An oil cooler leak turned into a month long debacle. I'm still building cofidence to drive it daily again. My mysterious coolant "burp" loss was actually a leaking cooler. It was so small it would not puddle untiil it dripped good. New seals and sealer finally stopped it. It's been a few weeks now and no coolant has been added.

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'06 X5 3.0i - bought @143,123 miles (12/26/20)