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Old 04-03-2018, 09:34 PM   #8
BMWM.D.

 
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Drives: ZL1/335i
Join Date: Apr 2014
Location: Santa Barbara
Posts: 870
Actually, look just under the rearmost spark plug on the driver side. I think the knock sensor and connector are under that aluminum shield. You’d need to access it from below, but you can see it from under the hood.
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