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Hi David....welcome to the Club Plenty of information throughout the forum and dedicated XK sections. Any other info you require about Jaguars then feel free to ask away Good to have you onboard Cheers, Trevor

I didn't think it would be long before this issue raised its ugly head, but behold, split cam covers and throttle body strike again... I posted this previously in the XF section before i drowned her, and now the XJ has the same... A word for the wise.. A replacement paper air filter from JLR is £25, do not be tempted to go for a K&N reusable filter thinking that you can save on the annual cost of a throw away item... its contaminated my MAF sensor, Bank 1, throwing up fault codes and RP every day, although the underlying issue of the split cam covers is yet unresolved. A quote from JLR that is akin to selling a kidney, however from experience it is not a hard job to do if you don't mind a little obscure modification to the fuel rail bracket in order to get the last remaining cam cover bolt off... All in all, the last outing took me 4 hours (with fastidious cleaning included) and cost me the price of the Bank 1 cover @ £218 and 3 injector seals at £2. For anyone experiencing the same, tell tale signs of imminent or actual failure are Restricted Performance on the dash, the above mentioned error codes and a build up of oil under the throttle body housing, directly above the coolant pipe assy between the banks. You cannot fix the issue as its a poorly made (probably part French) plastic welded part. The older more susceptible parts start with 4S7Q part numbers, whereas the revised later part starts with a 9. I am contemplating taking the failed part to my local engineering guy and getting him to build me an aluminium 'cap' to replace the plastic version - This would simply clip on with a large rubber O ring and hopefully stop any repetition. Cam covers are now on their 11th revision and are visibly different on the top section as opposed to the factory fitted 2009 - 2012 versions. New Cam covers come with the required gaskets. Injector removal requires a little dexterity and patience and contrary to popular belief, the high pressure lines can be reused once , saving another £145 from any potential bill. Oil residue between the banks was dealt with a liberal spraying of Gunk (in a spray bottle) - Aerosols tend to spray everything everywhere you do not want it. Then removed the resulting sludge with the wife's brand new Wet & Dry vacuum cleaner. I can safely report back that i shared my success with her, and she has appointed her solicitor as a result and i have forgotten just how soft the Sofa is to sleep on...