Well like I said it depends.

On my TDI if the MAF is unplugged the computer uses a "safe" value which reduces power some. It would still rev though and there's no harm to the engine.

I imagine your gas S320 would be more grumpy. I guess it could use the O2 sensor(s) to get the fuel trims correct though.

-J

__________________
1991 350SDL. 230,000 miles (new motor @ 150,000). Blown head gasket

Tesla Model 3. 205,000 miles. Been to 48 states!
Past: A fleet of VW TDIs.... including a V10,a Dieselgate Passat, and 2 ECOdiesels.
2014 Cadillac ELR
2013 Fiat 500E.