Cleaning O2 sensors

WOT Bimmer · 12-26-2014, 07:13 AM

I came across a video on youtube where a guy was cleaning his 528i O2 sensors with light sandpaper and brake cleaner. What's everyone's thoughts on this? Is it worth attempting, or is this too harsh?

Video:

SDemetris · 12-26-2014, 08:43 AM

Hmmm i just took mine off my e30 to do a cat delete.. might try it

cpie168 · 12-26-2014, 11:00 AM

Where are the O2 sensors located? Are they easy to get to?

hassmaschine · 12-26-2014, 01:19 PM

Not really a good idea, you should never use solvent on an O2 sensor. Also, E90s use widebands, that video is of a narrowband.

Inline · 12-27-2014, 02:12 PM

I had a service engine light and I just took brake cleaner on a rag and rubbed the black stuff off the O2 now the service light is gone!

WOT Bimmer · 12-28-2014, 08:15 AM

Quote:

Originally Posted by Inline

I had a service engine light and I just took brake cleaner on a rag and rubbed the black stuff off the O2 now the service light is gone!

Cool! I am in a similar situation.

I know replacing these throws a code, but is it as simple as clearing it with a scan tool, or does something need reprogrammed for the new sensors?

Inline · 12-28-2014, 09:04 AM

My brother replaced all four of them. We didn't have to code the O2 for them to work.

12-26-2014, 07:13 AM	#1
WOT Bimmer Major 1227 Rep 1,126 Posts Drives: 2018 BMW M2 Join Date: Jan 2013 Location: Columbus Ohio iTrader: (3)	Cleaning O2 sensors I came across a video on youtube where a guy was cleaning his 528i O2 sensors with light sandpaper and brake cleaner. What's everyone's thoughts on this? Is it worth attempting, or is this too harsh? Video:
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12-26-2014, 08:43 AM	#2
SDemetris FSAE Dude 61 Rep 759 Posts Drives: E90 328xi Join Date: Jul 2012 Location: Pittsburgh, PA iTrader: (0)	Hmmm i just took mine off my e30 to do a cat delete.. might try it
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12-26-2014, 11:00 AM	#3
cpie168 Major 173 Rep 1,117 Posts Drives: 2010 E90 328i 6MT ZSP BSM Join Date: Mar 2014 Location: K/W and GTA, Ontario, Canada iTrader: (1)	Where are the O2 sensors located? Are they easy to get to?
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12-26-2014, 01:19 PM	#4
hassmaschine Major General 3966 Rep 7,215 Posts Drives: "NBO" 330i Join Date: Jun 2014 Location: earth iTrader: (0)	Not really a good idea, you should never use solvent on an O2 sensor. Also, E90s use widebands, that video is of a narrowband.
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12-27-2014, 02:12 PM	#5
Inline First Lieutenant 299 Rep 306 Posts Drives: E90 M3 Zcp Join Date: Mar 2014 Location: Kentucky iTrader: (0) Garage List 2006 E90 330i [10.00]	I had a service engine light and I just took brake cleaner on a rag and rubbed the black stuff off the O2 now the service light is gone! __________________ E90 330i, E90 335i, E91 328i, E90 M3, E53 X5
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12-28-2014, 09:04 AM	#7
Inline First Lieutenant 299 Rep 306 Posts Drives: E90 M3 Zcp Join Date: Mar 2014 Location: Kentucky iTrader: (0) Garage List 2006 E90 330i [10.00]	My brother replaced all four of them. We didn't have to code the O2 for them to work. __________________ E90 330i, E90 335i, E91 328i, E90 M3, E53 X5
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