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      11-12-2012, 03:44 PM   #1
amill411
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Drives: 2008 335i E92
Join Date: Jul 2011
Location: Tampa, Florida

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02 / exhaust question

Okay so my drivers side rear O2 sensor is going bad because the wires are frayed.

My question is whether the drivers side rear sensor is for cylinders 1,2,3 or cylinders 4,5,6?

One of them costs like $60 and the other is like $160.
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