VEHICLE BUYER'S GUIDE
BMW M42015–2026
Year-by-year buyer intelligence from NHTSA safety data — reliability, value, and which years to target or avoid.
Best Years to Buy a BMW M4
Buyer Score combines reliability (65%) and depreciation value (35%) — higher is better.
BMW M4 Years to Avoid
1 recall · 11 complaints
Top issue: POWER TRAIN
2 recalls · 7 complaints
Top issue: FUEL/PROPULSION SYSTEM
3 recalls · 3 complaints
Top issue: ELECTRICAL SYSTEM
Federal Defect Investigations
NHTSA investigations are the stage that precedes a recall. 1 past investigation into the M4 became recall.
Source: NHTSA Office of Defects Investigation. Data current as of October 31, 2026.
BMW M4 — Year-by-Year Comparison
Every model year ranked by Buyer Score. Click any year for its detailed problem report.
| Year | Recalls | Complaints | Injuries | Deaths | Reliability | Value | Buyer Score | Verdict |
|---|---|---|---|---|---|---|---|---|
| 2026 | 0 | 0 | — | — | 72 | 37 | 60 | Excellent |
| 2025 | 0 | 0 | — | — | 72 | 52 | 65 | Excellent |
| 2024 | 0 | 0 | — | — | 72 | 65 | 70 | Excellent |
| 2023 | 1 | 1 | — | — | 72 | 75 | 73 | Good |
| 2022 | 2 | 0 | — | — | 67 | 82 | 72 | Caution |
| 2021 | 3 | 3 | — | — | 52 | 85 | 64 | Avoid |
| 2020 | 1 | 2 | — | — | 70 | 84 | 75 | Caution |
| 2019 | 0 | 0 | — | — | 72 | 80 | 75 | Excellent |
| 2018 | 0 | 5 | — | — | 70 | 74 | 71 | Caution |
| 2017 | 2 | 1 | — | — | 65 | 67 | 66 | Caution |
| 2016 | 2 | 7 | — | — | 50 | 60 | 54 | Avoid |
| 2015 | 1 | 11 | — | — | 47 | 53 | 49 | Avoid |
Buyer Score = Reliability (65%) + Value window (35%). Deaths and injuries sourced from NHTSA complaint filings. Year links open full NHTSA problem reports.
Known BMW M4 Problems
Most frequently reported components across all model years, from NHTSA owner complaints.
Complaint counts across all model years. Numbers indicate frequency, not severity.
Shopping by Era
How each generation of the M4 compares — best year within each era shown.
2018–Present
Modern safety tech, refreshed platforms, updated powertrains. Higher purchase price but lower reliability risk. Best pick in this era: 2019 (Buyer Score 75).
Frequently Asked Questions
What is the best year M4 to buy?+
The 2020 BMW M4 scores highest on our Buyer Score (75/100) — combining a reliability score of 70/100 with a value score of 84/100. It has 1 recall and 2 NHTSA complaints on record.
Which M4 years have the most problems?+
The 2015, 2016, 2021 model years have the highest problem scores in our analysis. The 2015 M4 leads with 1 recalls and 11 owner complaints.
What is the Buyer Score?+
The Buyer Score is a composite metric that combines reliability (65% weight) and depreciation value (35% weight). Reliability reflects recall and complaint severity. Value reflects how much of the vehicle's depreciation has already been absorbed by prior owners — a 4–6 year old vehicle typically sits in the sweet spot.
What are the most common M4 problems?+
The most frequently reported BMW M4 issues involve: ENGINE, POWER TRAIN, FUEL/PROPULSION SYSTEM, ELECTRICAL SYSTEM. These are aggregated across all model years from NHTSA owner complaint filings. Frequency of complaints does not necessarily indicate severity.
Deep-Dive Research
A buyer's guide shows model-level risk. A VIN report shows the individual vehicle — accidents, odometer history, open recalls, and auction records.