2000 E320 won't start, not even trying

[nazrat]

2000 E320. Wife says it won't start. The computer isn't even trying to turn it over. Had her check with voltmeter. She says it says 12 volts. Had her get out, lock car with remote, unlock and try again. Same thing. Had her move the shifter through it's range of motion and back and still won't start (has new bushings btw). Dash lights up as normal, radio works, etc but it won't start.

Any ideas?

Thanks,
Tad