Been having a look at a 2.5 1997 (R) 2.5 diesel for someone I know, he wanted to change the gearbox oil due to having issues with what felt almost like clutch slipping. We dropped the sump off and changed the filter today, and refilled it but at the time we noticed the filler plug isn't like the one on my Disco (TYB100080) but has a nut with a hole in it, which then has an aluminium dome inside it.
Should have got a photo of it at the time, but didn't. Was looking up a part number to replace the cap (as we had problems getting it to go back on) and find there appears to be 2 different sumps, which accept either a dipstick (with a nut on the end of it) or a plug (with a thread to accept a bolt type fitting on it). What we seem to have is a mixture of the two.
Is this likely to be a case of it had a dipstick (which microcat shows) and someone has removed it and capped it with something, or did Land Rover produce a few with this arrangement and theres another part number for the cap part?