Quote:
Originally Posted by BimmerM3inGA
Could it be remains of a dust cap from one on the serpentine belt pulleys? Can you see if any of them are missing?
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The belt pulley dust caps aren't flat like that. Almost looks like some kind of silicone sealer around the circumference of that plastic as well.
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2003 E53 3.0i
DOB 10/15/2002
Sienna red, Savannah Beige Dakota leather
Type FA53, Engine M54B30
2018 G02 30i
DOB 4/21/18
Black Sapphire Metallic / Canberra Beige Vermasca leather
Engine B46O