I have been going over my sons 85 190 E in preperation for selling it for him. Car shows 83K engine strong etc. problem! at soft acceleration there is heavy 2 to 3 flare but not always! sometime it shifts smooth as can be.It shows no flare on hard acceleration but dose tend to down shift a bit hard it show no flare when shifted manualy but pretty hard down shifts manualy. I have adjusted modulator back and forth,replaced rubber tubing at moulator an searched high and low for any vacum leaks all other vacum assisted items work fine, I have experence with modulator adjustments as have done both my SD and SE with no problems.
William Rogers........