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The manufacturer filed it. Here it is, by model.

Early Warning Reporting · BMW

BMW Z4: deaths and injuries the manufacturer reported to NHTSA

BMW reported 1 incident alleging a death or injury in a BMW Z4, model years 2020–2020, in its quarterly Early Warning reports to NHTSA (49 CFR 579.21), through 2026 Q1. Each is a claim the manufacturer received, not a finding; NHTSA does not verify them.

Photo: Dmitrii Filatov / Unsplash
1 incidents reported
0 deaths, as claimed
1 injuries, as claimed
2020–2020 model years named

By model year

Source: manufacturer EWR death and injury reports and production reports
Model yearIncidentsKilledInjuredBuiltPer 100,000 built
20201013,49629

The model year is the one the manufacturer named in the report. A model year with its own page links to it. “Built” is the manufacturer’s cumulative production for the model year from its latest Early Warning production report; the rate is incidents per 100,000 of them.

By the system the claimant named

Source: as the manufacturer reported it
System namedIncidentsKilled
Structure10
Lane Departure10

An incident naming several systems is counted under each. “Fire” and “Other” are categories in the rule, not systems.

Every one of these, dated and numbered

The defect dossier for the BMW Z4 puts each report beside the recalls, investigations, bulletins and owner complaints on the same system, as a PDF and two CSVs: the BMW Z4, one system, every model year, numbered as exhibits.

The incidents

Source: VIN shown as NHTSA publishes it: the first eleven characters
IncidentModel yearStateKilledInjuredSystems namedReported
2020-01-012020TX01Structure · Lane Departure2020 Q4

Each row above is a claim or notice BMW received alleging a death or injury in a BMW Z4 and reported to NHTSA as 49 CFR 579.21 requires; NHTSA does not verify it, and a Z4 that sold more will have more rows. All BMW models · What these reports are, and are not.