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UPDATE

I got it fixed by using vediamo and reflashing a corrupted section of the ECU.
I found the correct .cff files and reflashed. It's working again.

Hi,

I tried to get a read on my 2012 E550 4matic. VCM said that it needed a ecu update first.
It told me to save a file as a backup. (.hpt ~1kb in size). The process went on, it did a few...