o2 sensor - BMW Forum - BimmerWerkz.com
3-Series (E21, E30) Chat relating to the BMW 3-Series from 1975-1983 and 1984-1991 line. Specific models: BMW 315, BMW 316, BMW 318, BMW 318i, BMW 320/4, BMW 320i, BMW 320/6, BMW 323i, BMW 320i. E30 Family models include: BMW 325e, BMW 325i, BMW 325is, BMW 325ix.

 
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#1 (permalink) Old 09-12-2004, 03:37 PM
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anyone have any tricks to get this dam thing out?

without blowing a bunch of money on the sensor tool

put penatrating oil on it and still will not move , just asking before i strip the thing beyond repair.

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#2 (permalink) Old 09-12-2004, 04:10 PM
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ok, this is my first post in the e30 section, i think, so it might as well be a usefull one:

1.disconnect the O2 sensor electrical connector

2.slide a 22m(7.8) boxed end wrench ovet the electrical connector and wiring and remove the O2 sensor by turning it counter clockwise

2011 Mazda2
1990 Mazda Miata
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#3 (permalink) Old 09-12-2004, 09:42 PM
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Well I have used an adjustable wrench to pull mine out, I just carefully adjusted it while it was over the sensor. It really isnt that hard to take out its just being carefull you dont strip it. Hope this helps...
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#4 (permalink) Old 09-21-2004, 01:29 PM
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I had worries about stripping the o2 sensor, b/c on my '84 318i i can't see the darn thing and cannot reach it, except from top down. I took a long barrel 22mm socket. i cut the wire on the sensor side the length of my replacement universal bosch wire, curled the wire up, and everything fit in the socket. since the socket covers the entire bolt i didn't have any worries about stripping the sucker. and using socket wrench made it a lot easier and i didn't have to see what i was doing to take it off.

i coiled up the wire portion of the new o2 sensor and reversed what i did. i spliced the wire to the longer wire that goes to the ecu and voila, o2 sensor repaired.
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#5 (permalink) Old 09-22-2004, 10:31 PM
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Get the correct size socket and beat the shit out of it. They are a bitch to get out. Oxidation is a muther.

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