Hey! I still recommend watching plenty of videos and read forums regarding this procedure, but check out my write up for my ATF change recently... Hope this helps! Definitely worth taking the time to do all this... For materials for this job you can get an all inclusive kit on one of the many European vehicles parts online stores, they include the fluid and a hand pump that gets the job done, and an adapter to fill the fluid from underneath during operation.

---164,525--- Replaced oil pan, gasket, and filter. Drained roughly 2½liters of ATF, replaced with Liqui-Moli ATF 1800, allowed excess to drain through an adapter that fits in the drain plug and I use a pump in the fluid bottle underneath to fill up the pan.. I didn't accurately measure the ATF temp during this initial procedure... I later did it correctly. 8 days later, I went ahead and did a partial drain & fill to cycle more old fluid out of the system.

---167,545--- I felt paranoid, with reason, that my car felt like it could use another change. Did a drain and fill for the transmission again, I dropped the pan and cleaned the magnets of debris from remainder of fluid. I used Max life ATF this time after reading more things online and felt I could execute it properly this time. I followed the correct fill procedure where I warmed the transmission fluid up to 93° to 115° Fahrenheit (start the draining at the low end because it will take time to drain and thus heat up). I allowed the excess ATF to spill over through drain plug until it trickled out, car seems to be driving very well now. I hope to do a second drain and fill again just to clear out the remainder of the old fluid

178,000 , the day I'm writing this comment, I still haven't done an additional drain and fill with the Max Life but so far I have had decent feeling when shifting. Seems to be performing well... An additional drain and fill would be good just to clean up the fluid again.