How do I Install a BMW E30 Oxygen Sensor?

1. Locate the O2 sensor on the exhaust pipe, typically located within four feet of the engine.
2. Disconnect the O2 sensor from the main vehicle harness.
3. Unscrew the O2 sensor from the exhaust pipe with the specialty O2 sensor socket.
4. Take the new O2 sensor, apply anti-seize to the threads, and dielectric grease to the connector.
5. Screw the O2 sensor into the exhaust pipe and tighten, plug the sensor wire into the main vehicle harness. You have now replaced the O2 sensor in your BMW E30.