neck-snapping gear change

[chazchuzzlewitt]

my 280 shifts pretty harshly from 2-3 and smoothly from 3-4... it doesn't slip but more-like snaps into gear... does this transmission have an adjustable modulator like the later models?

[s class]

Chaz,

styria mentions two types of modulator valves which is correct.  My 1973 280S had the all-metal modulator valve, and my 1980 280SE has the metal body/plastic top type, which I suspect yours would also use.  To be sure, if you do replace the modulator valve, take your transmission serial no. with to the dealership to ensure the correct part. 

Ryan