2000 V70 SE N/A, AW55-50, Denso, 272K miles
Just a footnote to add to the discussion.
Original owner of this car, purchased in April 2000. The V70 "SE" issue also had the AW55-50 five-speed auto gearbox.
With regular 52,500 mile ATF dump-and-fill intervals, the transmission is still serving well. In the first year of ownership, the car experienced well-documented gear change issues, and it wouldn't unlock from fifth gear when rolling to a stop without a big "clunk" that could be felt and heard. The software upgrade fixed that problem, after the Volvo dealer realized there was a problem after researching the TSBs.
3309 ATF is always used for dump-and-fill, which helps keep the solenoids and servo from being damaged, and maintains the internal filter from clogging sediments.
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