Finally got to change the Transmission oil on the ML..
I've been putting it off for 18 months or so mainly because it's such a pig of a job, and very messy.
Turned out to be "not too" messy, but the method of filling the sump by pumping oil UPWARDS through the drain hole is perverse in the extreme!
Taking the sump off was so unnecessarily messy that I can imagine the designer having a right laugh every time he thinks of it, talk about Schadenfreude! WHY can't we have a dipstick/filler tube??
Anyway, after a good clean-up, it all went back together with a new filter and I even found the microscopic drain-plug for the torque converter, they don't all have drain plugs, so was not expecting to have any luck finding it. All to the good though, because 90% of the fluid will get changed, as opposed to about 60% if the TC is left alone.
Using an electric pump and the Ebay adapter in the drain hole, the actual filling was reasonable straight forward. Chose to use an infra-red non-contact thermometer to check for the 45C running temperature, before bolting everything up and going for a tea..
All-in-all, well worth doing, but thank God it doesn't have to be done again for about 40K miles.....that'll see me out...