E46Fanatics - View Single Post - O2 Bank 2 Sensor 1, which one?
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Old 03-10-2008, 07:26 PM   #6
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Join Date: Mar 2007
Location: Maplewood, New Jersey
Posts: 1,176
My Ride: 2010 328xi
You don't say what your mileage is, but if you are at the point where you're replacing the O2 sensors, do yourself a favor and do them both at the same time. For the $70 or so for the second sensor you'll buy yourself another 100K.
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