The 2021 BMW 4 Series has 15 owner-filed NHTSA complaints and 0 recalls on record. The most-reported areas are electrical system and engine. Owners most often flag high cost of ownership and unexpected repairs: budgeting $1,000-$3,000+ annually for maintenance and repairs is frequently mentioned, with major services (e.g., timing chain) potentially costing $4,000-$5,000. frequency: very frequent.
Source: NHTSA complaints and recalls filed for 2021 BMW 4 Series vehicles (US, public record).
Across the 8 4 Series model years we track, complaint volume runs from 6 (2020) to 174 (2015). With 15 complaints, the 2021 4 Series sits belowthe model's median of 23.
These are raw NHTSA complaint totals, not adjusted for how many cars sold or how long each model year has been on the road. Older and higher-selling years accumulate more complaints.
Sentiment is mixed and heavily dependent on the specific model, engine, and generation. For the F-generation (e.g., 428i, 430i, 435i, 440i), owner feedback is generally positive regarding driving dynamics, styling, and the overall package…
Owner insights cover all generations of the 4 Series. See the full 4 Series owner picture and every model year.
Used 4 Series listings typically run $14,099–$30,389 across 2014 to 2026 model years.
Compare every 4 Series year side by side to see how 2021 ranks against the rest.