Quote:
Originally Posted by musa
I had the dealer do this (simple drain and refill) after factory warranty expired at 50k miles. Trans had no issues but after the service, she doesn't shift as smooth as before. I feel a slight jerk in the lower gears. Taking it back to make sure they didn't over or under fill. Next time I'll just DIY.
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As some other members pointed out, most likely the adaptations were reset. If you have a scanner you can check to see what the fill counter is for them to confirm.
FYI: The official procedure from ZF for adaptions relearn is: Long stretch of flat level road, 20-30% throttle to 55mph, then take foot off throttle and allow car to downshift through gears as it coasts to a near stop. Come to full stop and Repeat this at least 3 times (more the better) in each of the driving modes.
If you don't have the time or road space to do this, it will learn on its own as you drive it, it might take a week or two depending on how often you drive and its conditions.