Though with the failure rate of the DA40 I'm sure this is something that all DA pilots have to practises -- glide approaches!
Should read - DIESEL versions of the DA40.
I have flown the DA40XL which has a Lycoming engine and powerflow exhaust and will cruise at 150 KTAS and has no such engine issues. A beautiful aeroplane especially when equipped with G1000 with Synthetic vision and traffic.