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What 15 owners told NHTSA about the 2021 BMW 4 Series Gran

These are the actual owner complaints behind this car’s reliability verdict, filed with the federal government, unedited. They’re unverified reports, not confirmed defects: read them as leads for your pre-purchase inspection, not a diagnosis.

All (15)Electrical system (6)Engine (3)Seat belts (3)Tires (1)Transmission & drivetrain (1)

1 of 15 complaints match · Tires · clear filters

Sep 12, 2021Tires

Pirelli Cinturato 7 all season 225/40R19 I found front and rear bump side wall tires and miles driven 5300 miles. I’m very concern about this issues

NHTSA ODI 11432662

Working with the data? Download all 15 complaints as CSV · fetched from NHTSA July 20, 2026

How to use these: a complaint is one owner’s report, filed voluntarily and published unverified. Patterns matter more than any single story. If several owners describe the same failure at similar mileage, put that system at the top of your pre-purchase inspection list. Back to the full 2021 BMW 4 Series Gran verdict →