On benzsport someone took a clk55 steering wheel and mated it to their 190e.
It was 2phast who did it. I believe he swapped the inside of the wheel from his old 190e wheel to the clk55 wheel and then it bolted on.
So it may be possible to do any mb wheel.
'92 300CE - Sold
2004 C240 - C7 Wheels
2015 ML350 - P1, Pano, Ash poplar wood, Sport Dinamica interior, Running Boards Keyless go.