I've done plenty of work myself on cars, and have the instructions on how to do it, but was wondering if anyone has actually done the process themselves. I know it involves drilling the rivets out of the crossmembers, removing the crossmembers, loosening a flange in the exhaust that I assume will be impossible, then lowering the exhaust 5" to get to it. Anyone have any tricks? The dealer wants $400, I'd rather not but I know the sensor alone is $180+, pretty rediculous for ONE o2 sensor..... Thanks for any help.

 

It is kind of a pain but can be done. Work slowly and carefully adn you will be fine.

 

Just for future reference, it's not too bad. I jacked one side of the car up (drivers side in my case). There are 3 center cross members that have to be removed, a total of (10) 12mm bolts and I believe 2-4 rivets. I placed a jack under the rear of the muffler, and with all 3 supporting members removed slowly lowered the exhaust (this elimiates the step of separating the exhaust). I actually loosened the O2 from inside the hood. I got the socket on (I have the one with the side mount eye) and have a 1/2" breaker with a swivel head that was positioned straight up behind the engine. Broke the )2 loose and was on my way, so far so goo. The hardest part about the replacement is forking over the $200 for the o2 sensor...

 

ESTS, it's looking like I'll need to replace my O2 sensors for my 2000 s80 (t6), but I haven't found much as far as specific how-tos for the S80, could you post or email me what you have?
Thanks

 

You will need to split the exhaust at the back of the cat converter. Then the crossmember. Then drop down the exhaust and remove the front crossmember. Then remove the heatshield between the cat and body of the car. Let the exhaust hand from there and remove the O2 sensor.

 

Thanks Tech, I was hoping for more detailed info... I'll just pony up for a 3-day vidas sub.

 

No need to remove the exhaust me and a buddy mechanic replaced one front and one rear o2 without doing that last week. you must have access to a hpist otherwise you will be putting yourself through unnecessary pain and suffering

you do not have to cut the rivets either... losen everything remove as much as you can, but here is the key remove the aluminum heat shield thats sitting on top of the exhaust and is bolted to the body of the car

that gives you just enough clearance to get an o2 removal tool in there,otherwise without that tool i dont think you can loosen the o2

also heating the o2 with a torch and then cooling it rapidly helps A LOT...good luck we did it in 3 hours, but thats while taking lots of smoking and drinking breaks