Can’t offer any advice beyond suggesting that you Search intercooler.
I remember my car suffered an issue associated with it and at the time Jaguar Assist got me back to a dealer.
Start here:

https://www.xfforum.co.uk/threads/65017

 

Thanks Pekem
Unfortunately the issue is not directly connected to the intercooler, although the seal leak is probably the root cause.
When in limp mode the DPF regen is disabled and so I also had a DPF Full message. When taking the car to the indi, I drove like a granny and believe it was in the middle of a regen when the 'restricted power' again kicked in. Result was a cloud of smoke out the back and both exhausts heavily covered in light grey deposits - i.e. I think the DPF cleared itself quite spectacularly! Anyway, I believe this probably either fried or heavily contaminated the offending sensor that is now going into fault.

From what I can find on the internet so far, it seems quite likely that 'Sensor 3' is the DFF outlet sensor. However, my local Jag franchise parts department can't tell me which one I should buy - they can only help if I tell them its a green one, one a blue one or.......! On-line parts suppliers also list these sensors with the same descriptions as the dealer. I have come across a few posts of other owners on other forums asking the same question - i.e. can someone identify what sensor corresponds to fault code P242D - 'Bank 1, Sensor 3, but so far no answers!

 

Just to follow-up on this....
It's been nearly two weeks now without an error message, so hopefully the 'fault' has cleared itself - fingers crossed!
You can read above what happened, so I now strongly suspect the exhaust temperature sensor going into fault was just heavily contaminated and is now cleaned up!

The warning would pop-up regularly once I had reached the 'ideal' DPF regen conditions - i.e. car warmed up as cruising between 60 and 70. So again I suspect (but can't be sure) it was the regen cycle tripping the fault - i.e. the temperature being transmitted from the offending sensor was not within tolerance expected during a DPF regen.

To help things along I also put an intensive fuel conditioner / EGR / DPF cleaner through the system. Although I use premium diesel every second or third fill (hoping the additional detergents etc. will keep everything clean) I do believe this cleaner has made a difference and the car is running smoother and pulling better than before.
After some research, the product I used was Archoil AR6400-D MAX (available in Amazon for around £25). This is an intensive cleaner and not one you use with every tankful.

 

Oh b*****ks - not 2 hours after posting above - on commute home and warning popped-up again.
Back to the drawing board!

 

"How did you solve the problem? I have the same problem, please provide assistance."

 

Hi XFNI, I know this was a long time ago but I'm having the EXACT same issues with my XF and I just wondered if you ever got to the bottom of the issue?

 

Hi is this thread still live?

 

Not really, OP didn't updated here since 2019

 

I have the same issue with my astra j A20DTH bank 1 sensor 3 so I replaced both sensors with original parts but i am still getting the same error. Any ideas what it can be. ?

 

 

Hello please?

 

See post #10

 

"Have you had this problem as well?"

 

Have You looked at post #10?

 

Not really, OP didn't updated here since 2019

 

My question, can you help mr

 

Unfortunately not