In short no
Sorry for grave digging ,
But the Midtronics 717 is not needed. Any conductance bat tester that can do AGM batteries (most quality ones can) and has an option for glow plugs ( If yours is a diesel ) in its test cycle will work.
Generally you will need a heavy duty conductance bat tester (cause of the glow plugs).
The Midtronics MCR 717 is just a Mercedes branded Midtronics MCR 700.
A little late but someone might find it useful.
M
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