just had an email from the guy on ebay, he tells me its defo leather and he has seven w124's and three of those are leather too and this is the same!!!!
closer look at the photos and it looks like the seats are worn in the same way leather does, so i reckon the seats are leather. not sure that the doorcards are though
Definitely leather - this is, rightly said, the pre-facelift leather interior. Seat facings, sides, headrests and part of the backs were covered in leather.
The door cards were normally MBtex whether leather or MBtex had been specified.