My coolant (2005 S-Type 3.0 "Gwendolyn") was low back during the winter, so I took it into the dealer. They said my DCCV was leaking, and said it would be about $650. I called an independent Jag shop, and they quoted about $300. I scheduled an appointment with the independent, but then a snow storm hit, and I couldn't get it in. Then I got busy, and never got around to taking it in. Last week Gwendolyn started having constant heat. The weather was now good enough, and I had read enough about it, that I thought I would give changing it myself a shot. Ordered from Amazon for $85. Thanks for all the information everyone has posted on how to do this. I couldn't have done it without all the information, pictures, and documents. However, after changing the DCCV, I still had constant heat coming out the vents. So I checked the fuses. They were fine. Then I checked the Temperature Evaporator Sensors. They were fine. Then I reluctantly checked my most dreaded fear, the Climate Control Module (CCM Non-Nav). There was an obvious burned out line from one pad to another. I didn't feel comfortable soldering that myself, so I took it to a local computer shop that fixes DC ports on laptops. They were able to solder a wire between the pads, and that worked! The check engine light was on while the CCM was removed. After I re-installed the CCM, the check engine light stayed on, but went out after a few engine start/stop cycles.

 

Dang! Happy you hit pay dirt but did it fix the heat issue? Cause I'm in the same boat. Gwendolyn huh? Was it luv at first drive or is it still a bumpy relationship? Welcome to the Jag Forum.

 

I'm in the exact same boat. I was thinking of sending the climate control module to jaguarclimatecontrol.com. I guess I can try it out myself first. I had the dealer do a diagnostic and they told me that the DCCV failed and the it burnt the CCM

 

That's likely what happened.

 

Dang Seth am I going to have to bring my tool box to the meet to help you out some. LOL.

 

Vance580, ya know how to pull out the CCM and solder the burnt tracer and git out of there like the SEALS who did a tap dance on Osamas' face? If this is you, you're hired soldier!

 

If I can resolder the board on a broken Sega Genesis to relive my childhood youth I think I could handle the CCM. If you dont have it fixed by then I'll throw my soldering iron in the trunk and we can see what we can do at the meet.

 

Oh, I guess I didn't actually say it fixed the problem did I? Yes it fixed my problem. I live in Tulsa, and was looking for something a little more economical than my SUV. I saw she was available in Dallas. I had never considered a Jag because of the price and reputed reliability. But when I started reading about them online, the 05 S-Types seemed to have pretty good reliability. So I drove down on a Saturday and picked her up. I got her for $10,000. So I figure even if I have to put another $10,000 into her over her lifespan, it would still be worth it, because it is so much more fun/enjoyable to drive than any newer vehicle I could get for $20,000. She has been an absolute dream to drive. It almost makes going to work fun.