So sorry I missed this. No I didn't. I first new anything about it when I saw it in the message center. I stopped and my passenger looked at the brake lights and reported they were working normally.

Thanks Damian. I'm not nearly as prolific as you I'm afraid and I don't suppose that at any one time this issue is affecting many cars. However, I think it is a wear problem that will eventually be seen on most XK8/Rs as they age in miles and years, and I just wanted to have a diagnosis and solution hanging out there ready.

Hi Craig. Thanks for the kind comments. I think someone else pointed out that my information regarding the positioning of the cruise control button was incorrect, at least for some territories. I'm sorry if this cause d confusion. Nevertheless, the cause and solution are the same and I recommend using the optocoupler; after thousands of miles of use it has served me very well.

Hi Richard Sorry to bother you but I'm confused after changing my headlights to led thery worked perfectly. I then ordered the led bulbs to replace map,license, turn signals and trunk. I got the 2825 bulbs but when took the old halegon out the 2825s were not even close to fitting. The head would not fit the plastic covering and and the head was so long even if it would fit the hole in the covering it would extend too far too fit the socket into the covering. I could not even jury rig by making the hole in the covering larger. The difference is about 1/4 inch larger. Are their other head sizes of 2825 bulbs@@richardastley2517

@@craigoliver4631 Hi Craig. In a different video call Jaguar XK8 Lighting Modifications I think I recommend the T10 LED bulb to replace most 2825 bulbs..

Dale. My video covers the X100. The 2007 is an X150 and I’m sorry I’m unable to advise on this model.

Hi Margaret. That's covered in pages 17-25 of the PDF document at: www.rastley.com/XK-brake-switch.pdf. There's also a clickable link in the description under the video. Rick

Hi Ben. I looked into changing the microswitches but, while I found some that appeared similar, I couldn't be sure that any of them would work. There were just too many mechanical and electrical variables to be certain any would be an easy substitute. I use cruise control a lot and have now covered thousands of mile using the opto-coupler solution, so far without the slightest problem. Of course, I'm relying on the remaining good switch, so if that fails, I might be looking at a microswitch swap-out again! I had to change a microswitch that interacts with the the door mechanism to lower the glass a tad so the door can open below the convertible top. Is that the one you found a substitute for? If so, please share what switch you found and where you got it. I seem to remember paying a fortune for the Jaguar part. The original failed because of water ingress and there's still a chance that the one on the passenger door may soon fail too.

@@richardastley2517 can you post links to the ones that you think would work and I’ll test them out? And I did just replace the micro switch in the door and it works for the past year or two but I was looking on the form and saw a guy found them and ordered them. Can’t remember the site or the form page tho. Just search for micro switch door 2005 Jaguar xk8 and i eventually found it

@@benschroeder1161 Ben, the microswitch I considered can be found by searching for KW11-3Z-2 on Amazon, eBay or elsewhere. It looks about the right size with similar hole locations and lever action. Having 3 terminals, (Common, NC and NO) it can be wired one way for the Brake ON/Off switch and the other way for the Cruise Control Cancel function. I'll be interested to know if it really is a good substitute for the original.

@@richardastley2517 I will try that out and let you know. Did you find the door switch? I can look again and see where I bought it

@@richardastley2517 also I found 2 pin and 3 pin. Which do you think would be best? I can’t tell in the video how many wires there are

Ben, I'm sorry that I only learned of the reintroduction of the master cruise control switch after posting the video. I don't have access to the to the circuit diagram for XKs post 2004.5 so I can't be 100% sure that the 1999 - 2002 circuit was re-used. It would make sense that it would be as there was nothing fundamentally bad about it and it would have been the least costly route for Jaguar to take, given that the circuit was proven and tested. I'd use the 1999 - 2002 instructions unless you have adaptive cruise control, in which case the circuit changes would have been more radical.

@@richardastley2517 I don’t think I have adaptive cruise control. I just know I have the sport mode button and the master switch for cruise control. I’ll try it and see what happens

Hey KTRB. Thanks so much for the encouraging feedback.