Honestly, I'm having a hard time finding the Bank 1 & 2 sensor 1's-o2 sensors on my 98 528i. The pics are good but a little confusing from certain points of view. Close-up great but medium shots to close-ups would do a lot more good. Because my 528i ain't easy looking like a 3 series.

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This post was auto-generated based upon a question asked on our tech article page here: Pelican Technical Article: Replacing your 3-Series E30 Oxygen (Lambda) Sensor

The Bank 1 sensor is in the exhaust manifold for the 1, 2 and 3 cylinders and the Bank 2 sensor is in the exhaust manifold for the 4, 5 and 6 cylinders

- Nick