Have you seen that documented?

 

^^ I just now saw that documented on parts.jaguarlandroverclassic.com. Hopefully we are now getting close to nailing this down....

 

My apologies. I missed that supersession information earlier. Sometimes Heritage shows it below, sometimes at the top. Either way, I missed it, sorry.

 

No worries, Michael. I always appreciate your kind help....

 

Jon89,

The sensors I listed are for my car. I think my point was that replacing a faulty O2 sensor will clear the DCT code.

There are a couple things you must do. Not just any O2 sensor will go in the space as you are discovering.
There is male - female connector consideration. There are some options to wire in the correct plug but it you get the correct sensor that will be unnecessary.
The correct O2 sensor will have the correct plug match-up to the car's wiring harness.

Of the two recommendations in your recent post...
C2P8810 is for Jaguar XK8 4.0 1996 to 1998 end at vin 031302
C2N3717 is for Jaguar XK8 & XKR 4.0 & 4.2 all 1998 to 2006 from vin 031303
If that fits your car data you're good to go.
But double check the following.Once you have this information purchase the best sensor ($$$) from a reliable source, preferable a Jaguar parts supplier or one you trust. I started with Amazon and I now have a bin full of O2 sensors that will never be used.

Getting the sensors out and back in the car is a challenge. Having the car warmed up will help since the bungs will have expanded. But those babies are in tight!
Get a good set of O2 sockets - you'll need them.

Good luck,

Terry

 

Interestingly, Cary Jag (and Harper Jag...), for example, show CP8810 for an upper 2006 XK8, base and no other year.

e.g. https://parts.harperjaguar.com/oem-p...sensor-c2p8810

Similarly, both show C2N3717 (C2S51801) for 4.2L (2003 up), but not before. For instance, this would not be for my 2002 upstream sensor which I replaced a couple of months ago, which is definitively a LNE1684BB or Denso 2349016, not a C2N3717 (C2S51801) or Denso 2349029.

https://parts.jaguarcary.com/oem-par...c=cT1DMk4zNzE3

Rock Auto also seems to think the C2p8810 is upstream for a 2006.

So, with all this, is JEPC the reliably definitive parts list (at least for the original part) or is there some vendor who is consistently better? For example, I just received intake bolts from Jagclassicparts that were easily 25mm too long for the application with the apparent correct part number. Still working this out with them.

 

I believe the most reliable source is any long-time forum member here who has already done the job you are attempting to do and can provide the supplier and part number that worked for him. And that is truly unfortunate. When you cannot depend upon the dealership parts departments, you know you are on shaky ground....

 

Sometime you have to take a leap of faith. I purchased from British Parts UK. Never had a problem getting the correct part including the O2 Sensors.

 

I just replaced the (US) driver's side upper O2 sensor on my 2001 XKR, and I had a devil of a time with a step that it seems at least some XK8 folks do not have. On my car there is a heat shield bolted onto the cat with three T30 Torx bolts that has to be moved aside before the oxygen sensor can be revealed from above. Luckily one doesn't have to take it out entirely, just moved aside, but getting a Torx bit onto the screw heads themselves is a bear and a half in that limited space. I made sure to let the offending sensor soak in PB Blaster overnight before trying to unbolt it; luckily, after a little shove on the O2 sensor socket from a long lever (part of a belt tensioner kit that was effectively a thin breaker bar), it broke free and I hand-untightened it the rest of the way. Installation was the reverse of removal as usual, but just as much of a pain.
EDIT: Not sure if it's actually something XK8 owners don't have, or just one that isn't in the original poster's pictures. Either way, it's a pain.

 

Hi,
Did you finally remove rhe heat shield to access to O2 sensor?
The 3 torx screw are a nightmare to unscrew (didn't succeded yet...)