While replacing my motor mounts on Old Black (1985 300D turbo). I hit a big snag - the driver's side small fasteners(two on the edge, on the top) will not come out. Looks like the heads have been rounded off. I have tried cleaning, hitting the bit with a hammer to no avail. The ones on the pass. side came out with no problem.

Any ideas?

Thanks in advance,
Jason

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1985 300 D - turbo
258k miles and still ticking!
Black/palamino
Alda dustcap modification
Eastern NC -