o2 sensors

bstone801 · 07-10-2015, 05:09 PM

I think my test pipes have finally fried my post cat o2 sensors, at least on one side. I keep getting increased emissions SES light and all codes point to the sensors. Anyway, probably best for a new set all around.

Any recommendations of a solid place to buy replacements? Appreciate the help in advance.

avantegardestyle · 07-10-2015, 05:45 PM

2nd.........

jimk · 07-10-2015, 06:43 PM

http://www.amazon.com/Bosch-16793-Ox...RBM1KJN3YZ27B0

///S65 · 07-11-2015, 07:56 AM

OP I am facing the exact same problem. Dealer quoted me $500 for the repair which I think is total bs. Is there a DIY guide on how to replace the sensor? It looks like the link above is a good deal.

Tracyis300 · 07-11-2015, 10:27 PM

Quote:

Originally Posted by ///S65

OP I am facing the exact same problem. Dealer quoted me $500 for the repair which I think is total bs. Is there a DIY guide on how to replace the sensor? It looks like the link above is a good deal.

The installation is plug & play.
All you need is a o2 sensor wrench or crows feet socket, and a 10mm socket to take off the sensor heat shield.
Once you get under the car you will see both sensors (B1 & B2).
There's also a video on YouTube. Just type in "E92 M3 Exhaust removal" and you'll see what I'm talking about?!

bstone801 · 07-12-2015, 09:43 PM

Quote:

Originally Posted by Tracyis300

The installation is plug & play.
All you need is a o2 sensor wrench or crows feet socket, and a 10mm socket to take off the sensor heat shield.
Once you get under the car you will see both sensors (B1 & B2).
There's also a video on YouTube. Just type in "E92 M3 Exhaust removal" and you'll see what I'm talking about?!

+1. Super easy removal and install.

bstone801 · 07-12-2015, 09:44 PM

Quote:

Originally Posted by jimk

http://www.amazon.com/Bosch-16793-Ox...RBM1KJN3YZ27B0

Thanks

bstone801 · 07-16-2015, 12:23 PM

Update:

After ordering 02 sensors and then my order being cancelled because they were out of stock. I decided to just try something since I had the sensors out and the car in the air.

Being the downstream sensors were caked in carbon. I decided to do a little experiment just to see what happens. I poured some gasoline in a small plastic container, and soaked the sensors for about 15 min. After which I put some gloves on and used a soft detail brush to clean and discard all the built up carbon. Gasoline works rather well. After they were cleaned up I let them dry. Reinstalled them, cleared the codes to just humor myself. I am not positive my SES light wont come back but as of now, no codes and the car is running very well. I still plan on replacing them but I honestly didnt know cleaning your O2 sensors were really and option, or at least didnt really consider it because it was just a routine replaced item. So there you go, if you want to experiment in cleaning them and potentially fixing the same issue, I would say give it a shot.

07-10-2015, 05:09 PM	#1
bstone801 Private First Class 94 Rep 198 Posts Drives: Alpine e90 M3 slick stick Join Date: May 2015 Location: Boise, ID iTrader: (0)	o2 sensors I think my test pipes have finally fried my post cat o2 sensors, at least on one side. I keep getting increased emissions SES light and all codes point to the sensors. Anyway, probably best for a new set all around. Any recommendations of a solid place to buy replacements? Appreciate the help in advance.
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07-10-2015, 05:45 PM	#2
avantegardestyle Captain 290 Rep 912 Posts Drives: E90 ///M3 SG Join Date: Nov 2014 Location: East Side iTrader: (0)	2nd.........
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07-10-2015, 06:43 PM	#3
jimk Captain 104 Rep 934 Posts Drives: 2018 M550i Join Date: Jun 2009 Location: Camarillo, CA iTrader: (8)	http://www.amazon.com/Bosch-16793-Ox...RBM1KJN3YZ27B0
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07-11-2015, 07:56 AM	#4
///S65 Second Lieutenant 43 Rep 262 Posts Drives: E92 M3 SSII DCT Join Date: Apr 2013 Location: Indianapolis, IN iTrader: (1)	OP I am facing the exact same problem. Dealer quoted me $500 for the repair which I think is total bs. Is there a DIY guide on how to replace the sensor? It looks like the link above is a good deal. __________________ 2010 E92 SSII DCT, Akra Evo, ESS Tune, Performance Spolier &Splitter, Edition Side Markers, AD08R
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07-16-2015, 12:23 PM	#8
bstone801 Private First Class 94 Rep 198 Posts Drives: Alpine e90 M3 slick stick Join Date: May 2015 Location: Boise, ID iTrader: (0)	Update: After ordering 02 sensors and then my order being cancelled because they were out of stock. I decided to just try something since I had the sensors out and the car in the air. Being the downstream sensors were caked in carbon. I decided to do a little experiment just to see what happens. I poured some gasoline in a small plastic container, and soaked the sensors for about 15 min. After which I put some gloves on and used a soft detail brush to clean and discard all the built up carbon. Gasoline works rather well. After they were cleaned up I let them dry. Reinstalled them, cleared the codes to just humor myself. I am not positive my SES light wont come back but as of now, no codes and the car is running very well. I still plan on replacing them but I honestly didnt know cleaning your O2 sensors were really and option, or at least didnt really consider it because it was just a routine replaced item. So there you go, if you want to experiment in cleaning them and potentially fixing the same issue, I would say give it a shot.
	Appreciate 0 Quote