1998 300E Diesel Shifter stuck in drive

[blk90s13]

Car was put in park once before when it was still rolling real slow


Shifter went out of alignment after that, park was not there any more had to park in N with parking brake on or else it would roll on its own with a low grinding noise ( plastic gears like sound )


anyway I took into a shop for a tire repair and they forced it into drive now stuck there


they checked linkage and said all good and I may need an electronic controller ? I am not sure what to look for when I get to the shop this week !