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M3Bonus · 10-21-2015, 10:19 PM

I managed to open the engine bay tonight to replace the air filter and noticed the cap here in the pic is quite oily. Im not sure what the cap is for yet, but should I be worried? Also, anything else I should look for since I have it open?

10-21-2015, 10:19 PM	#1
M3Bonus Registered User Join Date: Oct 2015 Location: Los Angeles Posts: 22	Engine Bay I managed to open the engine bay tonight to replace the air filter and noticed the cap here in the pic is quite oily. Im not sure what the cap is for yet, but should I be worried? Also, anything else I should look for since I have it open?