Which DME for 2001?
 

ME 7.2?

I notice in the workshop manual there are a few things you're supposed to do after having had the battery disconnected. Like turning the ignition on for one minute and then off for 10 seconds without touching the gas pedal.

Has anyone ever had a problem with not doing these things after having the battery disconnected?

That is what it says for an e-gas car.

Have disconnected the batteries on a lot of cars over the years at our local work on cars days. Never followed that procedure. Never had a problem.