When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
Hi. Should there be two quick connectors underneath the tank between diff ? My car does not have any connector until fuel filter connector at pressure pipe and somewhere down further on return line. Instead of connectors I do have a rubber or just flexible hoses doing half a loop and becomes back to a steel pipes.
There should be a plumbing map in one of the X308 manuals like on the X300 on page 60 of the X300 Jaguar 801s PDF , maybe the same less the engine section ?
Ah. According to the workshop manual hoses are like they should be. Connectors are those what can not be seen. Pipes goes in to the "tank" what has connectors. No wonder there is no other connectors.
The special tool is used to release the 'stuffer-pin' metal retainer 'fingers' so the lines can be pulled down/disconnected.
DO NOT pull the tank into the boot area with the lines connected.
We will all laugh when the NLA lines are bent/damaged.
You will be looking for USED lines when the damaged ones leak.
Too many sob stories of people trying to 'shortcut' the repair and crying about the leaking lines!
The other method people use is to cut a hole in the parcel shelf to replace fuel pumps.
good luck.
Last edited by motorcarman; Apr 25, 2026 at 01:23 PM.
The OWNER of the car can use this method.
If I tried that on a customer car, I would expect to be sued and lose tons of money trying to justify 'altering' the structure of the car.
A judge in a courtroom would NOT side with me I can assure you!
Although cutting the parcel shelf seems sacrilege, it is the most straightforward method.
I'm not sure why it would be considered sacrilege. Jaguar themselves cut holes for those models that had rear speakers and those models which had the premium sound system that include subwoofers with their rear speakers.
What I don't understand is why Jaguar didn't locate the fuel pumps directly below the speaker holes so they could be accessed/replaced simply by removing and then reinstalling the speakers without having to cut new holes or disconnecting and removing the tank to accomplish the same task.
If you are going to attempt pulling the tank into the trunk, here's a tool I made to release the fuel lines "if" they won't release with the AC quick release disconnect. I highly recommend using them first. Read the subtitles I put in the pics and easily work the conduit in and around the lines getting those decades of hardened built up dirt out. Post #14
There is only ONE subwoofer in the sedans.(a dual coil unit)
Not to derail the thread but my use of the plural was meant to be in reference to the number of cars, not the number of subwoofers.
The last thing I want to be doing here is disagreeing with someone who knows as much about these cars and freely shares that knowledge with the rest of us so let me take this opportunity to put this to bed by thanking you for that!
Yeah. Cutting parcelshelf is sacriledge. I'm going by the tank removal. I do not have premium sound. I think I have has that kind of disconnect tool to the 5/16 or 8mm pipe. I'm not gonna twist the pipes. Even it felt easiest to do. .
I’ve pulled tank 3 times. First time took me couple of hours to figure out how (tools/angles). Last time 20 minutes. Helps if have a helper with tiny hands/forearms.
I've removed the rear seat and cut a hole about 8" x 6" just above the body seam to access the tank fittings. Used some clips to screw it back in place and covered the cut seam with metal tape. I wasn't going to cut the parcel shelf and could not get to the tank fittings from below. Have done this on four cars so far.
Fuel connectors under tank
