I have a 325i Convertible that was manufactured in 12/86, so my oxygen sensor is slightly different from the one in your example plug in verses screw on with threads. Figures 5,6 & 12. Any words of wisdom getting the old one unplugged because I'm having some difficulty and I don't want to break it.

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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

You may have the older design plug so look for the locking tab and push on it while you are trying to separate the connector.

- Nick