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Where is the O2 sensor?

Help, Advice, Owners' Discussion and DIY Tutorials on the Volvo S80 model. Sometimes called an "executive car", the S80 was and continues to be Volvo's top-of-the-line passenger car.
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Joined: Wed Apr 20, 2011 12:43 pm
Year and Model: S80 T6, 2002
Location: Charleston, SC

Where is the O2 sensor?

Postby bronson1111 » Tue Apr 26, 2011 8:37 pm

I have a 2002 Volvo S80 T6. I am trying to figure out the location of the O2 sensor near the head gasket. Does anyone have a diagram or a map of the O2 sensor locations?

Thank you!
Last edited by matthew1 on Thu Apr 28, 2011 5:25 pm, edited 2 times in total.
Reason: Removed unneeded question marks from title. One's enough :-)

Posts: 6268
Joined: Sat Aug 21, 2010 6:20 am
Year and Model: Lots
Location: Melbourne Australia
Flag: Australia

Re: Where is the O2 sensor???

Postby precopster » Thu Apr 28, 2011 1:23 pm

Anyone have this info??
Current cars:2002 XC70, 2001 V70 T5, 2006 XC90 2.5T, VW Transporter 2.5TDI

What we used to own:1995 850 sedan, 1987 740 sedan, 2002 S60AWD, 1989 740 turbo wagon, 1985 760 V6, 1995 850 wagon, 1999 V70 project car, 1998 V70R AWD, 2001 XC70.
Cheers Mike

Posts: 1100
Joined: Fri Jan 29, 2010 7:52 pm
Year and Model: '98 V70 T5, '99 S80
Location: St. Paul, MN

Re: Where is the O2 sensor???

Postby boosted5cyl » Thu Apr 28, 2011 3:10 pm

You are referring to the upstream (Pre cat) sensors then? There are two, one for each bank. Follow the exhaust pipes from the turbos back towards the cats and you cant miss them, they are right on the top of the pipe about (I guess) 1.5-2ft away from the motor.
'04 XC90 2.5T AWD (Angus) 134K.
'99 S80 T6 (Medusa) 214k. On borrowed time LOL
'98 V70 T5 (Vivienne). RIP @ 228K. Spun rod bearings.

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