Any luck cleaning O2 sensors?

asummers · Post by **asummers** » 30 Dec 2009, 11:56

Has anyone had luck cleaning O2 sensors to get more life out of them when you get the O2 codes? Especially since the S80's have four O2 sensors and the codes mention all of them. If someone has had luck with this, what did you use to clean them with? I remember a post with something like "CRC" used to clean them.

weroll · Post by **weroll** » 30 Dec 2009, 17:27

Never cleaned them, but have changed them, and also got rid of the error code without changing them on two of my 850's.
Make sure you don't have an exhaust leak before you spend $ on the sensors. On my cars, both developed a crack in the weld in the exhaust pipe under the engine in front of the sensors and cat. Very hard to see since there is no rust, but enough of a crack that it changes the pressure to the sensors and you get an error reading. Rewelded the pipe, and errors went away!

Post by **JDS60R** » 30 Dec 2009, 18:35

No luck cleaning them either.

Amazon has the direct Bosch replacements at a very reasonable price.

neworleans · Post by **neworleans** » 30 Dec 2009, 19:39

i recently bought a O2 sensor from amazon for 88bucks for my 99 v70XC.
Before I purchased it, I put the car model and year and the system said it fits so i got it. I was quite happy because the regular price is around 200 bucks at fcp.
I brought it to my volvo mechanic and he isaid it was the incorrect O2, i returned the part and purchased one at FCP for 198 bucks...

Post by **JDS60R** » 30 Dec 2009, 20:56

Good Point

I always go here to check before ordering.
http://www.boschoxygensensor.com/

neworleans · Post by **neworleans** » 02 Jan 2010, 11:50

The plug was different on that O2 I bought from amazon.
I returned it but then I thought if it would be possible to cut the old O2's plug and connect to the new one??
You could save 100 bucks if you could do that...

asummers · Post by **asummers** » 04 Jan 2010, 06:55

Thanks for the Bosch link!
I went there and told it my car, and it has them priced at $96.36 each for the front ones, and $101.53 each for the back ones.
And you can order from Bosch!
Great prices, since my code reader told me ALL FOUR are not responding!