In Detail:
During the installation of the additional module was relatively simple, the actual operation has given no more cause for celebration in the vehicle. The known issues with any existing start-stop automatic could be solved even by selecting the so-called. "Hybrid" mode, but occasionally Verbindungsabrüche with the then required (circumstantial) reconnection via BlueTooth not. Reason: Unknown.
If one believes now that the data then delivered via OBD2 interface any - of the existing standard display beyond - would have additional benefits will be disappointed here. It is really only the minimum data set, which is provided via OBD2 evaluated. Really useful was not among them, in my subjective assessment. Water temperature, engine speed, vehicle power supply voltage are more Allerweltskram while% -Motorlast, air mass measurement and intake air temperature display, etc. for the user hardly useful actionable data.
Too bad that you have in fact not actually used the extensive data offer via OBD2 to offer meaningful addition to the already existing data on current vehicles instruments. A missed opportunity. Neither the diagnosis nor in the vehicle data a "hit", other inexpensive OBD2 adapter make the effect much more. Nor is it to see where and how the so won tiling data in the navigation. I have at least the effect can not see anything. Considering the extensive advertising claims by Garmin to this module, it will probably the same assessment as I get that it "only" advertising claims seem to be no actual reference to "reality".
This has probably ultimately led to Garmin this plug - probably due to the small and rather dubious benefits - no longer supported in the current Navi models. My assessment: A wise decision ...
My summary: Apart gimmick nothing or hardly been something ...