As you may be able to hear on this very short video, my driver's door emits two distinct clicks each time I open or close it. I have tried squirting penetrating fluid into the hinges, but this has had no effect. Does anyone else have this problem? Are there any solutions? The passenger door deos not click at all.

Jaguar XKR door creak - YouTube

Had the same situation:
Check the two small nuts that are on the hinges on the door. They will work themselves loose and create the popping noise where the door hinge seems to have two open positions -about at 1/4 opening and again at full opening.
For an exploded view of the hinges, go to FAQ, scroll down to Interior/Mechanical Issues to sub heading "Popping Door Hinges".
It was a thread I had and received the post information.
Clarification:
The two small nuts are not on the hinges but are on the center "limiter" piece that keeps the door from swinging full open. I believe 8mm small socket will let you get in to tighten.

When I listened to the sound on Frog's video, I thought this was going to be similar to the common XJ8 saloon problem where the check strap can be ripped clean through the door:



Fortunately the XK8 appears to be a more robust door frame.

+1

Thanks so much, guys. I had been feeling unwell all week and was finally admitted to hospital yesterday for some tests. I read your replies on my iPhone while I was waiting and they really cheered me up I'll give the fix a go when I'm back on my feet.

Hope you feel better soon, Frog.

Nice assist on the fix guys...outstanding

Frog - hope you're better soon and that its nothing too serious!

Looks like another problem has been sorted.
Hope you are feeling better for Christmas Frog.

cheers Al

Never a good time to be under the weather. Get well soon!

Thanks for your good wishes. I'm kind of back on my feet already. Taking things steady, but guess what the first thing I did was... We have two cars in our garage at the moment, which means I can't open my driver's door wide enough to access the hinges, but the tools and grease are at the ready

Frog;
Thought I'd bring your thread to the forefront since you are continuing to have trouble with the door popping sound as described in your video. You are probably on the right track with the door panel removal and visual inspection of the door check assembly inside the door as well as an inspection of the interior of the door where the assembly is connected.

+1

Thanks. I will remove the door card and have a root around inside and let you know what I find.

This is a known problem on the XJ's. There are some photo series showing the item in question in the X308 section. Reinforcing the skin using washers is also shown.

A small inspection mirror is invaluable for this job.

Hope your feeling Well... Tinkering on your car is good therapy... I look forward to just washing it,,, Being there has not been any issues,,,(knocking on the beautiful burl wood dash ,,, Lightly very lightly,,,oh great now there's smudge marks,,, Honey wheres the polish) ,,, Told the wife to drive it more so I can go change the oil and put it on a lift again...

Frog your car looks beautiful,,, love the color and obviously the lines...

Well, I stripped the door this morning and... I think I'll be needing a new stay. I cleaned, greased, loosened and retightened just about everything I could find, but no luck. I have a feeling that the previous owner (or garage) may have tinkered around with two of the bolts, as they are impossible to tighten up really tight. I think the threads may have been stripped, so it looks as if I'll be keeping my eye out for a new stay.

Frog;
Before purchasing a new Door Check Assembly (stay), is there a possibility of using a "thread chaser" on the bolts and salvaging the assembly? Not knowing the extent of damage on the threads, it may be worth a try to attempt this procedure before purchasing a new assembly.

So, I finally resolved the problem today by stripping down the door and replacing the stay with a used one I bought on eBay for £10. It is a simple job made awkward by very restricted access to the bolts (you need a tiny socket wrench with 8mm and 10mm sockets).

I now have the old stay on my work bench, but to be frank, I can't really see what - if anything - was broken. I now have a non-arthritic driver's door, though, and that's all that matters.

Kudos to you!