Gen4 2020 SZ5 Automatic gearbox

I recall some previous discussion regarding draining/replacing automatic gearbox fluid and that there is no drain-plug rendering it impossible to completely drain all old fluid. Is there a removable gearbox sump and filter as in my BMW X5 or some other way of draining all fluid? I am told by my dealer that it is a 'sealed for life' item and will never require changing unless the gearbox is removed for repair..?? My intention is to replace fluid at say 50k as I have done with previous cars, but how?

It's the same with most autos.  You can remove the sump and the filter, but only a litre or two comes out.  The total capacity is usually about three times that.  You can do several changes a few days apart - three changes of 1/3 of the fluid would replace a majority of it - and try to suck some out of the dipstick tube (if the Gen4 has one) and ATF cooler too.  If you can get half of it out, two changes should suffice.

Check your owner's manual, the fluid is replaced every 99,000 miles or 18,000 under severe driving conditions.



The Jimny has an old style torque converter/planetary gear automatic transmission, the bulk of the fluid is trapped in the torque converter and the only way to get it out of there is to disassemble the transmission, your options for a fluid change are limited to multiple drain & refills if you're doing it yourself or take it to a specialist with a fluid exchange machine.

You need to find a workshop with this equipment.
www.honestjohn.co.uk/news/products/2018-...sis-now-even-easier/

Try an independent Land Rover garage because the oil in some auto boxes has to be pumped out.

Hello everyone,
Sorry to bring this old topic back into discussion, but since it is near the time for me to perform the ATF change I started digging for information on it and I found something that might be helpful.
There is an interesting video from The Car Care Nut on Youtube about changing ATF:

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He works mainly with Toyota/Lexus therefore some of the discussion is specific to that brand, but I believe some of it applies to most automatic gearboxes out there too. At 7:51 he explains why a flush might not be the best idea and the partial change by draining and refilling is acceptable. That converges with something I read on an article from a Brazilian auto magazine that states that, unless recommended by the manufacturer, a complete flush/ATF change of the automatic gearbox with the use of an external machine to pump the ATF through could be too aggressive - it could dislodge internal seals or move dirt to places where it could block the AT fluid flow.
The Jimny (JB74) service manual procedure for changing ATF is basically about draining from the bottom plug and replenishing the same amount drained (this is very important as overfilling also causes a variety of issues), so I am guessing there is no need to go for a complete flush and probably the ATF change interval was devised with a partial change in mind.