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      12-31-2018, 03:07 PM   #45
MechX3M40i
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Drives: X3 M40i Blue/Cognac
Join Date: Oct 2018
Location: MidWest USA

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Quote:
Originally Posted by bmtespar View Post
I keep mine closed 98% of the time. The rattle seems to my ears be coming from the join of the fixed glass and the moving portion. In my previous car, I could push two fingers on the middle of the join seam (look for small hole) and the rattle would stop. It is definitely temperature induced. Seems to rattle anytime below 70 degrees.
Just a hypothesis - maybe at lower temp, the movable roof panel shrinks just enough that it is no longer so tight squeezed against the fixed glass portion, allowing vibration/movement which results in rubbing between the seal pieces? as Tex94 mentioned, one member found lubrication took care of the rattling.
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