There are 2 stored owner reports matching the powertrain & transmission leading-label group for the 2017 BMW 7 Series in our NHTSA-sourced dataset. These are unverified consumer reports and may not reflect confirmed defects.
This group counts stored reports whose component label starts with one of this site's matching prefixes, ignoring case. Each matching report counts once within the group. Components mentioned later in the label or only in the narrative are not searched. How component counts work
Loaded 2 of 2 matching reports.
Open the full vehicle complaint log (all categories)Failing HV battery cells cause a misreading of the energy level available. When turning left in oncoming traffic the Hybrid launches in EV mode because the battery management system shows plenty of power where there is none. The car will lurch into oncoming traffic and hesitate while trying to start the combustion engine the delay is unexpected and can be enough to cause an accident.
Front Driveshaft between transfer case and front differential, is available upon request. The driveshaft broke at the universal joint, once it broke it damaged the upper and lower oil pan making a hole the size of a softball, as it kept rotating broke transmission casing also draining oil from transmission and engine components. It caused the tires to get soaked in oil and slip and spin out. Luckily no cars or objects were near me at the time, if there were this would have been a big safety concern to the driver and passenger of the car. No warnings were given by this component before it failed, 5 seconds after failure the low oil pressure warning came on, this was after the vehicle spun out. The has been inspected by an independent service center and will be inspected by the insurance company.
Complaints are unverified consumer reports submitted to NHTSA. A high complaint count may reflect vehicle popularity, not defect severity. Data sourced from NHTSA public records.
NHTSA source checks for this vehicle year
Checks are recorded separately for each dataset, not for the whole page. Dates use UTC. A missing check date does not mean no records exist.
Vehicle import recorded: Apr 28, 2026. This is the stored import date, not confirmation that every source was successfully refreshed.