I was looking at getting the gear box an oil service (by a garage if I can find one with experience), there is a Japanese sticker saying the last service was at 60k KM and next due 160k KM (am at 140k Km currently).
Does anyone know if the rear motor needs servicing (oil change presumably). I can't find any reference in the English translation owners manual.

The Toyota Club.Net shows 1.5ltrs ATF Type T-IV. Has anyone any experience of this? Many thanks

The service manual has this, mangled via translation from the Japanese:


This seems like the kind of thing that's routine in gearbox servicing - they don't necessarily have handy drain plugs so you have to do things like sucking oil out of the filler hole, or overfilling in the hope of mixing up old oil with fresh.

Amayama:
https://www.amayama.com/en/genuine-catalogs/epc/toyota-japan/alphard/ATH10W/43189/chassis/3901
says there's a '90341-18023 Gasket (for rear differential filler plug)' but no corresponding drain plug gasket, implying there is no way to drain it without suction. When filling you'd pump in oil until it overflows, and once it's stopped overflowing then you know that it's full.

There's no service schedule for it that I can see.

Thanks for that. I suppose it is a matter of checking the oil level at the filler, bit like my old Morris Minor.