So I came back from a trip, changed the accessory drive belts, the car ran fine, then sat while I worked, came back and it won't start, I've replaced plugs, new battery, cleaned the starter, and it still won't run. I don't know if my coil packs are good, and I asked around, one guy said that the timing belt could go bad. Anyone have any more ideas??

 

Have you checked for spark, fuel, relevant fuses? Do you know how to deflood the S5? Start somewhere and through process of elimination you'll find the issue.

 

It's strange because there is no fuel smell indicating it's flooded. I gave it a shot or two of starter fluid, and it didn't even sputter. The car won't turn over without a start assist from my battery charger, and I have the blinker/ door buzzer going off, but it shuts off when I depress the brake pedal.

 

Rotary engines do not have a timing belt..so you can rule that out..and also any help from "that guy" as he doesn't know Jack..

Check your connections to the alternator and the battery.
Voltage test the alternator and the battery.