Should I remove my O2 sensor with a hot exhaust?

[kbana]

Hi guys, I just replaced my sensor & the old one unscrewed like a dream. Disclaimer; this worked for me, I take no responsibility for the advice. I drove the car for an hour & ensured that the exhaust was very hot. I prepared with eye protection & thick gloves, I then used a shifter to remove the old sensor, a light tug is all it took. Mind you I did try removing the sensor cold, but it wouldn't budge. So the trick which worked for me is to replace the sensor when exhaust is very hot, but protect yourself & be careful. Best of luck in your DIY

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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

[Nick at Pelican Parts]

Yes heat does make the metal softer and easier to remove. Avoid using rust penetrate sprays because they have silicone in them and this will damage the sensor element.

- Nick