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Thread: Recent XJ12 owner 1996 (x305)

  1. #1
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    Recent XJ12 owner 1996 (x305)

    Hi. I was nutty enough to pick up an xj12.
    Although I have been stalking this forum for years, as i previously owned a 2000 xj8 vdp (x30.

    Just as then as I noticed now, as expected, not much for x305. Or may be using wrong search keywords here. A great possibility.
    As according to the numbers, they are pretty rare to begin with and probably even rarer by today.


    Well hopefully over time, I can help with that. I hope to create a chronicle of xj12 x305 repair stuff, hopefully with pictures. Probably shortly after the new year.

    Planned topics first set of topics, not in any particular order:
    valve cover gaskets,
    shocks and shock bushings,
    ignition coils
    smog pump (mine seem to be starting to seize and make noise on start up)
    and various suspension bushings that I may find that need to be replaced or preventive replace after i take closer look.

    Then go from there as things break or just doing routine maintenance.

    Now granted, I AM NOT A Jaguar specialist tech. I am more experienced professionally with Mercedes Benz as a technician. And BMW as a hobbiest.

  2. #2
    Senior Member
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    Congratulations, they are absolutely fantastic cars and the V12 is thoroughly sorted (only took 25 years). I covered 100k in 2 years in my 1995 SWB, and aside from bushes and consumables it was rock solid. Check the coolant is clean and keep an eye on the state of hoses and the radiator, they put out a lot of heat and at 20 years old you should expect hoses to be splitting. If I had to chose any preventative job to do on an old car it would always be a hose refresh!

    Is yours a SWB or LWB car?

  3. #3
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    oh yeah that was first thing. Got all the main hoses done before driving off the lot.

    may do the thermostat too. It looks recently fiddled with but prev. owner not sure if it came with jag specified bypass pindle. The radiator and fan clutch seems to be near brand new.
    So far, no sign of overheating or hot spots, verified through dash indicator and thermometer. (spent more time looking at coolant system than on test drive).

    Still have to check out some of the smaller hoses that are oft overlooked.

    and coolant fans operate as they should.

    Lwb 1996.

  4. #4
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    Wow..... BX, and David, I was just thinking the same thing as you guys!!! I was scouring the forum looking for anything X305 related and came across you recent posts. I have just bought a Daimler Double Six and gave it a general check over as one does on buying any car and it seemed OK and performed well in the test drive, but any 'general hints' in operating these fantastic cars would be very welcome!! Take your points about the cooling system and hoses and will check all this out. Keep the posts coming as you have at least one eager owner looking on!! Cheers.

  5. #5
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    Click image for larger version. 

Name:	image.jpeg 
Views:	7 
Size:	123.0 KB 
ID:	29488Here is a picture of the business end of my car, do you see anything worrying at all??

  6. #6
    Senior Member
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    Those late ones look so much neater than the old versions without that cover!

    Beyond cooling there are no real weaknesses with the 6 litre Ford engine and 4l80E gearbox, and the X300 is easily the best car that engine was ever fitted to. You'll get the usual old car issues with vacum lines splitting, bits and pieces dying of old age and so on, but I'd rather keep one of these running one of these than a 1997 AJ-V8 with the chocolate ZF5HP gearbox. You should have a proper LSD on a V12 too.

    I've recently bought a 2003 X350 XJ8 4.2 as a daily driver, and as great as that V8 engine is it really isn't up to the standards of the V12 in refinement or smooth power delivery. 6 speed gearbox is nice!

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