Oriskany

One of the lower battery box, cover retaining tangs on my 2005 3.0 Sovereign is broken, and the engine lacks the plastic cover I've seen on other X Types, so, finding myself near a local scrapyard I set about liberating these items from a silver X type 2.5 that was down on its luck. I easily removed the parts, and also helped myself to a set of 5 wheel nuts which had been left under the bonnet. I also wanted one of those boot opening assisters but the boot on the scrapper was shut and there was no way of opening it. When I got home I found that there is nothing to secure the engine cover onto - al all three locations. Also, the battery box is a different size being about 1cm shorter - and that after disconnecting and removing mine. Very disappointing and a waste of time and hurumph....£5. Sometimes you just can't win.

On "Wheeler Dealers" they bought a Porsche Boxter S with a faulty gearbox in that the clutches slipped, and the fault was cured quite cheaply by replacing the transmission fluid and filter. If it were me, I;d give it a go.

Thanks for that - My MIL light never illumenates and there is nearly no oil consumption despite 130k miles.

Thanks. I'll give it a go and post the result.

Fuse "F43" in the passenger compartmen refers to an "antenna module" - worth a look?

****Update**** - The noise was due to the transfer box containing nearly no oil! I got the car up on ramps and prepared the area for the deluge of gunge that I expented by removing the transfer box filler plug - gingerly removed the plug and ...nothing but a mound of magnetically-attached gunge on the plug. I managed to get over 400ml of new oil in and a test drive revealed that the box is now so much quieter but since matter cannot be created nor destroyed, what happened to the 400ml+ that had "disappeared"? - there are no visible leaks and all looks dry down there. I have owned a few XJ40s, and the oil in the diff on those used to "disappear" over the years but I assumed it escaped as vapour through the breather valve. This box doesn't have one - does it? Anyway - nice and quiet now.

My X type 3.0 2005 hesitates in a "misfiring" sort of way when accelerating in mid rpm. It goes through a lumpy phase of hesitating which can be felt in the car, and it soon clears up but it does affect performance. I have read plenty about this on line but seemingly no solution. My question is could the hesitancy be due to the brakes being applied in response to a yaw sensor erroneous output? Also, which unit would "apply the brakes" in this situation, is it the ABS modulator at the front right of the engine bay? If so I could test my theory by unplugging it for a while.

Thanks Joe. I've decided that it's already curtains for the battery that I removed as I don't trust it any more. When I went through the dash tests it was reading 10.2V after just a couple of minutes with the ignition on. I've replaced it with a new battery of the same size but with 64Ah instead of the original 60Ah and 590A instead of the original 550A of cold cranking current. Funnily enough my car jerked a bit on acceleration up hill between about 30 and 60MPH but now it seems to have stopped doing that and is frankly like a rocket on rails. You must be right that the electronics don't tolerate a weak battery - and I'm increasingly sure my old battery, though a Jaguar OEM unit, is weak.

My 3.0 Sovereign has a Jaguar battery with the date code 15/13 - 2013. Today I went out to record the diagnostic readings from my message centre by holding in the trip stalk and switching to position II and then recording what was displayed. There were over two pages to record and I sat there for about ten minutes in II, without paying much attention to the fact that the automatic lights were on and the fan running. I finished and switched off and then on to start the engine - and it would not! Just a click of the solenoid and the dash resetting. I swapped the battery for a similar one that I had handy and it started OK but I wonder whether the original one is on the way out. I have measured the voltage ofthe original battery and it is 12.63v. On the charger it is charging at 0.75A. Would have expected more. I removed the cell covers and the electrolyte is up to level and nothing looks dirty or warped - actually the cells looked really clean under the torch! Any ideas or experiences?

I haven't had my 55 reg' 3.0 X type Sovereign for long, but it is making a noise and I don't know what it is. It happens a variable short period after setting off and is best described as a "Draying" noise that changes pitch with speed. It continues both on acceleration and overrun. I don't know whether it's the diff, the transfer box or a wheel bearing - any ideas ? Thanks.

The beauty of an old-fashioned scrapyard is that you can take some tools and have a go at removing just the lens to avoid buying too much. I'd have a go at removing the lens from the other side as to avoid damaging the light that I wanted. My local scrappy doesn't mind this kind of thing as money for plastic is a win-win for them - they are really interested in metal. So take the tools and have a go before you buy - I would.

Have you got a scrapyard locally? A light lens, being plastic, would normally be only a couple of quid. Good luck.

Before removing anything, you can do a bulb test by holding in the trip button on the end of the left hand stalk and switching on the ignition (the position before engine start). This enters a dash self-test suite. Press the button repeatedly until you arrive at the bulb test whereby all of the dash lamps are illumenated. When you are finished, just switch off the ignition and that's it. Good luck.

So I've had my 3.0 2005 X type Sovereign auto (130,000 miles) for a couple of weeks now and the only work that I have had done is to have the steering aligned and the wheels swapped front to back as one of the fronts was wearing unevenly. Recently a few "effects" have started and I wondered whether owners of older, high mileage X types live with them or whether they are serious. Firstly, my car makes an audible whine on acceleration and this increases in frequency with speed but goes quiet on overrun. Secondly, sometimes I get a misfire-type juddering and hesitency on acceleration at quite low speeds but no engine light etc. I am aware that my car is old and I don't expect perfection but it is comfortable and the heated seats, sat nav and Alpine stereo make driving a pleasure in it.

I'd check the wires leading through the flexible conduit between the car and the door for breaks. The wiring through these isn't very good IMO as my 2006 example has nearside passenger mirror problems and my offside front door speaker does not work due, I suspect to broken wires. I'll investigate more fully when it gets a bit warmer.