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DIY: Do It Yourself
Post here to share or improve your wrench turning skills! All BMW E46 DIY tips, tales, and projects discussed inside. Learn to work on your car and know the right BMW parts you will need!

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Old 06-13-2011, 06:47 PM   #1
E46330XI
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Join Date: Jul 2005
Location: Waterbury, Connecticut
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My Ride: 2001 330XI
HELP! Stripped O2 sensor

Hey guys,
I am having a problem just like the title says. I have replaced all but one O2 sensor because the last and hardest one to get to stripped!! Any clue on the best way to get it off? I used a brand new 22mm O2 sensor socket. All the other ones came off fine. I even sprayed it down with that anti seize spray or loosening spray, cant remember what its called. Would heating it help?
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Old 06-13-2011, 07:37 PM   #2
Solidjake
Zero. Oil. Leaks.
 
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Heating can help, but don't overdo it.
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Old 06-13-2011, 08:25 PM   #3
E46330XI
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Is there any tool I could use? Like an angled vice grip or something?
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Old 06-13-2011, 08:35 PM   #4
Solidjake
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If you're referring to the post cats I cannot help since I never did them.
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Old 06-16-2011, 01:55 PM   #5
Spyder_Venom
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As suggested, heating is normally how I get them out. If that doesn't work, cutting the head off the sensor and using a bolt extractor kit usually will do the trick (http://www.google.com/products/catal...d=0CIYBEPMCMAM).

There as been a time or two they have been so badly rusted in, I've broken the 02 out of the bung. There is always the risk of damaging the threads, but worst case you can weld on a new bung.

Last edited by Spyder_Venom; 06-16-2011 at 01:57 PM.
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