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      05-07-2013, 10:51 PM   #47
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Drives: 2008 M3 - Interlagos Blue
Join Date: Apr 2013
Location: Houston, Texas

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2008 BMW M3  [0.00]
Originally Posted by elm3 View Post
Actually some of your problem could be vacuum leak. So yeah, fix the exhaust before you replace the O2 sensors.
So here is the update, after fixing said leak i drove around for about a day. During that time frame the SES light went off, and the next day it came back on. The only two things that changed was the fact that i put gas in the car, and that the weather got significantly cooler and dryer. Hence, i am now leaning towards me needing to replace the oxygen sensors (upstream). Thoughts?
08 Interlagos Blue M3 | ACSchnitzer front lip, Hamman rear difuser, Vossen 20" wheels, Remus exhaust|