Has anybody found the best and easiest way to change the spark plugs on the x350 xjr thanks

Does anybody know where I can obtain a engine undertray mine needs replacing some of the prices I have seen seem exspensive

Has anyone replaced their air filter to a K&N performance filter if so have they had any problems.
Also has any one replaced the plastic air in take to a caldoofy stainless steel in take and was there any problems or improvements to engine or supercharger.
The x350 I have is a 2003 XJR

Can anyone out there let me know where the module which controls passenger door latch is I ve seen drawing showing it in r/h of boot but not exact position is it in the rear wing Area how do you get to it?
Thanks

Hi Paul And IRS Update on my problem I have been battling on getting the door card off as the door is locked solid it is quite hard however I have released the card as much as I can and have unscrewed some of the torn screws on the second coverI can get to but as this is limited it has not helped mu...

Hi Paul
Thanks for your info only thing is how do you get access to the bottom screw on the door as the door will not open and is stuck closed

Got a problem with the passenger door firstly I noticed the rear doors were not locking with fob or dash switch then when I was messing to try to solve that the passenger door locked and now I can not open it from outside or inside. I have tried taken off the wood metal around internal handle and fi...

X350 xjr 2003 passenger door will not unlock tried by key and the internal switch also tried my spare fob I don’t want to remove door card yet that’s if it is possible with the door shut and ideas xjman