I’m trying, without success, to find the relevant page of the service manual that shows where to fill the auto transmission with fresh fluid.
I have the early 5spd auto box. I have replaced the gearbox oil filter and oil pan gasket. But where is the filler plug?
I feel sure the JSM would show this but I don’t know how to find which of the 5069 pages is the right one.

Can anyone help please?

 

Can't help with the specifics of the manual. There are two basic ways to fill the 5R55N transmission.

One is via the fill plug on the aft end of the transmission, on the right side next to the driveshaft. You can see the fill plug in this thread, post #3:

https://www.jaguarforums.com/forum/s...l-plug-119788/

You remove the plug from the center of the drain/standpipe assembly so fluid can fill to the top of the standpipe but no higher. Have a drain bucket ready to catch the overflow.


The second method is via a simple adapter that threads into the level plug on the bottom of the transmission. This video explains the process. Since you're filling via the standpipe, you basically overfill the transmission slightly and then let it drain back down to the top of the standpipe:



That video is the 5R55S transmission variant used in the Ford Explorer but the principles are the same. Poke around online for that model and you will find lots more results.

 

Yes those giant manuals are hard to use. Since they are in PDF form you can use the find command in PDF.
But Karl got you pointed in the right direction.
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Thanks for the help guys. I managed to pump the fluid in through the upper oil cooler line. But I will recheck the level after getting her hot again. The youtube video was very illuminating. I will search for the proper fill point tomorrow as described in the other forum post.

 

I serviced my 5R55N a while ago and it was easy to find that service port back by the driveshaft.

Just keep in mind it is for filling only. You still have to use the standpipe (in the pan) to determine the correct level. That service port in back is just a convenient place to add fluid, but it is NOT fill to spill.

 

Understood 👍😉. Thank you 🙏 😀