Mozart K.494 b.178 near the end of the movement. (This is the 3rd movement of the sonata K.533/K.494)
This is in bass clef BTW. This image is the Bärenreiter edition. Henle puts only the turn option.
This looks like a turn while the note is tied — how do you play this? If I try "D4 C4 B♭3 C4" — doesn't that interrupt the tie? Do you actually sound the C4 at the start of the next bar?
This play-with-score version on YouTube doesn't have the turn at this part 25:24 (older edition perhaps?)
Link to timestamp: