InsightArise CarsU.S. Owner Complaint Index
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2021 BMW 3 Series problems, complaints & recalls

Far fewer Rising

NHTSA has received 33 owner complaints about the 2021 BMW 3 Series, or 5.8 per year on the road — far fewer complaints than typical for a vehicle of its age (complaint index 0.14, where 1.00 is the average of all tracked vehicles). Among the 85 model-year 2021 vehicles we track, it ranks #12 for fewest complaints per year. Against other BMW models its rate is 50% lower; against other Luxury sedans it is 14% higher.

Counts are normalized by time on the road, not by sales volume: a popular model generates more reports than a rare one, and complaints are not verified individually. How we count

Complaints filed between 2021-12-25 and 2026-09-02. Median delay from incident to filing: 2 days.

33Complaints
5.8Complaints per year on the road
0.14Complaint index vs. all tracked vehicles
0Recalls
12.1%Share involving a crash or fire
23Last 12 months

Analysis

The previous model year (2020) drew 7.8 complaints per year, more than this one. The following model year (2022) drew 1.7 per year, fewer than this one. In its first two years on the road the 2021 model collected 4 complaints, 93% lower than the average vehicle of the same model year.

The most common problem area is Engine (36.4% of complaints), followed by Electrical (30.3%) and Airbags & seat belts (6.1%). Engine complaints are 1.6 times as common here as across all tracked vehicles. Within Engine reports, owners most often mention “starter”, “motor”, “fire”, “confirmed” and “insurance”. 4 reports (12.1%) describe a crash or fire; owners mention 2 injuries and 0 deaths.

Half of the reported incidents happened within 58 months of the model year's start; the busiest period was years three to five (48% of incidents). In the last 12 months 23 new complaints were filed, versus 2 in the 12 months before — the pace is rising.

NHTSA lists no safety recalls for this model year.

Complaint index

  • vs. all tracked vehicles0.14
  • vs. other BMW models0.5
  • vs. other 2021 models0.15
  • vs. other Luxury sedans1.14
  • Complaints in first 2 years on the road · vs. same-year average (4)0.07
  • #12 of 85 · 2021Rankings ›

1.00 means the same rate as the comparison group. 2.00 means twice as many complaints per year on the road.

Other model years

  • 20186.8 per year0.16
  • 20195.3 per year0.13
  • 20207.8 per year0.19
  • 20215.8 per year0.14
  • 20221.7 per year0.04
  • 20233.3 per year0.08
  • 20243.7 per year0.09
  • 20252.4 per year0.06

BMW 3 Series problems, complaints & recalls by model year ›

What owners complain about

  • Engine12 · 36.4% · 1.64×
  • Electrical10 · 30.3% · 1.92×
  • Airbags & seat belts2 · 6.1% · 1.6×
  • Driver-assist systems2 · 6.1% · 1.06×
  • Body & structure2 · 6.1% · 0.66×
  • Wheels, tires & suspension2 · 6.1% · 2.45×
  • Interior & equipment2 · 6.1% · 0.68×
  • Brakes1 · 3.0% · 0.49×

vs. all vehicles: 1.00 = All-vehicle average

Engine · Common terms in reports

  • starter5
  • motor4
  • fire4
  • confirmed4
  • insurance3
  • engine6

Electrical · Common terms in reports

  • notification electrical6
  • electrical system6
  • received notification6
  • system recall3
  • amount4
  • experienced4

Problem areas: Engine · Electrical

When complaints were filed

2021: 1 1 2021 2022: 3 3 2022 2023: 2 2 2023 2024: 2 2 2024 2025: 12 12 2025 2026: 13 13 2026
  • Crashes reported: 1
  • Fires reported: 3
  • Injuries: 2
  • Deaths: 0

Vehicle age at incident

  • <1 yr3.0%
  • 1–2 yrs9.1%
  • 2–3 yrs6.1%
  • 3–5 yrs48.5%
  • 5+ yrs33.3%

Median age at incident: 58 months

What owners report

Excerpts from complaints filed with NHTSA, trimmed for length. The ODI number is NHTSA's record identifier.

Segment peers · 2021 · Luxury sedans

ModelsComplaintsComplaints per year on the roadComplaint index
2021 Audi A4122.10.05
2021 Mercedes-Benz C-Class152.60.06
2021 Mercedes-Benz E-Class203.50.08
2021 BMW 5 Series264.60.11
2021 BMW 3 Series335.80.14
2021 Lexus ES356.20.15

Safety recalls (0)

No recalls on record for this model year.

How to check whether your car has an open recall ›

Investigations

No NHTSA investigation covers the tracked model years.

Frequently asked questions

How many complaints were filed for the 2021 BMW 3 Series?

33 complaints were filed with NHTSA for the 2021 BMW 3 Series, or about 5.8 per year on the road.

What is the most common problem reported for the 2021 BMW 3 Series?

The most common category is Engine, accounting for 36.4% of complaints.

Does the 2021 BMW 3 Series have any recalls?

NHTSA lists no safety recalls for this model year.

Is the 2021 BMW 3 Series still generating complaints?

In the last 12 months 23 new complaints were filed, versus 2 in the 12 months before — the pace is rising.

How does the 2021 BMW 3 Series compare with similar vehicles?

NHTSA has received 33 owner complaints about the 2021 BMW 3 Series, or 5.8 per year on the road — far fewer complaints than typical for a vehicle of its age (complaint index 0.14, where 1.00 is the average of all tracked vehicles). Among the 85 model-year 2021 vehicles we track, it ranks #12 for fewest complaints per year. Against other BMW models its rate is 50% lower; against other Luxury sedans it is 14% higher.