Quote:
Originally Posted by msmiljanic
From manual "EDR data is recorded by your vehicle only if a nontrivial crash situation occurs" further, I don't think it records the types of parameters that would reveal someone using a tune
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It's a data block that is continuously overwritten with everything NHTSA requires and whatever else BMW deems important to diagnosis a car. NHTSA requires the data in the event of a crash but there may be useful information in their to help BMW decode other issues like money shifts, etc. BTW, just guessing what is stored b/c no-one really knows.
https://www.crashdatagroup.com/edr-news/