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Research · Subcompact Cars

2021 BMW M4Recalls, problems, MPG & safety

NHTSA lists 2 safety recalls and 1 owner complaint for the 2021 BMW M4. Most complaints involve service brakes (1). The EPA rates it 19 mpg combined.

Check a VINAdd to my garage
Combined MPG
19mpg
EPA · 2 versions
NHTSA overall
—
Not rated by NCAP
Safety recalls
2campaigns
Latest Jul 2021
Owner complaints
1
Top: service brakes
Fuel cost / yr
$4,050est.
EPA estimate, best version
01 —Recalls

Safety recalls

2 NHTSA campaigns · applies to some vehicles, check your VIN

Seat belts

Free remedy

BMW of North America, LLC (BMW) is recalling certain 2021 2 Series (230i, 230i xDrive, M240i, M240i xDrive), 330e, 330e Xdrive, 4 Series Coupe (430i, 430i xDrive, M440i xDrive) M4 Coupe, M4 Competition Coupe, BMW 4 Series Convertible (430i, M440i), BMW X1 sDrive28i, xDrive28i, 2 Series Gran Coupe (228i, 228i xDrive, M235i xDrive), M2 Competition Coupe, 330i, 330i xDrive, M340i, M340i xDrive, M3, M3 Competition, 530i, 530i xDrive, 540i, 540i xDrive, MINI Hardtop 2 Door (Cooper, CooperS, JCW), X2 sDrive28i, X2 xDrive28i, X2 M35i, Z4 sDrive30i, Z4 M40i, MINI Hardtop 2 Door (Cooper SE), MINI Convertible (Cooper, Cooper S, JCW), MINI Clubman (Cooper S, Cooper S All4, JCW), MINI Countryman (Cooper, Cooper All4, Cooper S, Cooper S All4, JCW All4), Rolls Royce Ghost, MINI Countryman (Cooper S E All4), Rolls Royce Phantom, Rolls Royce Cullinan, and Toyota Supra vehicles. The passenger seat belt Automatic Locking Retractor (ALR) may deactivate early, before the webbing fully retracts. As such, these assemblies fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 208, "Occupant Crash Protection."

Seat beltsReported Jul 21, 2021NHTSA 21V554000

Service brakes, hydraulic

Free remedy

BMW of North America, LLC (BMW) is recalling certain 2020-2021 8 Series Coupe, Grand Coupe and convertible 840i, 840i xDrive, M850i xDrive, M8 and 740 Li, 740 Li xDrive, 750 Li xDrive, M760 Li xDrive, X6 sDrive40i, X6 xDrive40i, X6 xdrive50i, X6 M50i, X6M, and 2019-2021 X5 sDrive40i, X5 xDrive40i, X5 xDrive50i, X5 M50i, X5M, X7 xDrive40i, X7 xDrive50i, X7 M50i, and 2021 M3, M3 Competition, M4 Coupe, M4 Competition Coupe, X5 xDrive45e, 745 Le xDrive. The rotor and shaft within the integrated brake system may not have been welded properly and could separate during a hard braking event, possibly resulting in a loss of the Antilock Brake System (ABS) and braking assistance.

Service brakes, hydraulicReported Feb 10, 2021NHTSA 21V062000
Data from NHTSA Recalls API · synced Nov 9, 2026 · All recall detailsNHTSA vehicle page
02 —Complaints

Owner complaints by component

1 complaints filed with NHTSA · Jun 2024 – Jun 2024
  1. Service brakes1

Complaints are unverified owner reports to NHTSA and are not normalized for sales volume. One complaint can cite several components.

By model year

Complaints for each M4 model year we’ve synced.

View as table
Model yearNHTSA complaints
201512
201622
20172
20186
20201
20211
20222
20242
Crashes reported
0
Fires reported
0
Injuries reported
0
Deaths reported
0
Data from NHTSA Complaints API · synced Nov 9, 2026NHTSA vehicle page
03 —Common problems

What owners report most

Verbatim excerpts from NHTSA complaints, by component

Service brakes

1 report
“Vehicle brake very very loudly. BMw claims this is normal, this is not true. Vehicle has extremely low miles and performs bad when braking.”
Owner complaint to NHTSAFiled Jun 13, 2024Service brakesODI 11594234
Send a problem to a mechanic on findmechanic.ai
Data from NHTSA Complaints API (owner reports, unverified) · synced Nov 9, 2026
04 —Key specs

Engines, transmissions & drive

2 versions rated by the EPA
EPA class
Subcompact Cars
Engines
3.0L 6-cyl turbo
Transmissions
Automatic (S8) · Manual 6-spd
Drive
Rear-Wheel Drive
Fuel
Premium Gasoline

Towing, payload and dimensions aren’t in the EPA or NHTSA data, so we don’t list them.

Data from EPA fueleconomy.gov · synced Nov 9, 2026EPA listing
05 —Fuel economy

EPA fuel economy by version

City / highway / combined, annual fuel cost and CO₂
EPA
VersionCityHwyComb.Fuel / yrCO₂ g/mi
M4 Competition Coupe
Auto (S8), 6 cyl, 3.0 L, Turbo · Rear-Wheel Drive
162319$4,050470
M4 Coupe
Man 6-spd, 6 cyl, 3.0 L, Turbo · Rear-Wheel Drive
162319$4,050472
  • M4 Competition Coupe
    Auto (S8), 6 cyl, 3.0 L, Turbo
    16 city · 23 hwy · $4,050/yr
    19
    mpg comb.
  • M4 Coupe
    Man 6-spd, 6 cyl, 3.0 L, Turbo
    16 city · 23 hwy · $4,050/yr
    19
    mpg comb.
Estimate your fuel costCost of ownership
Data from EPA fueleconomy.gov · synced Nov 9, 2026 · Fuel cost is EPA’s annual estimate (15,000 mi, 55% city)
06 —Safety

NHTSA 5-Star Safety Ratings

2 tested variants
NHTSA has not published 5-Star Safety Ratings for the 2021 BMW M4 as of Nov 9, 2026.
Data from NHTSA NCAP Safety Ratings API · synced Nov 9, 2026Vehicle 15943Vehicle 15935
07 —Maintenance

Maintenance basics

General guidance, not the OEM schedule. Check your owner’s manual.
General guidance
ItemMilesTimeNote
Engine oil & filter5,000–10,000 mi6–12 monthsFollow the oil-life monitor if fitted
Tire rotation5,000–7,500 miEvery oil changeCheck pressure monthly
Engine air filter15,000–30,000 mi1–2 yearsSooner in dusty areas
Cabin air filter15,000–25,000 mi1–2 years
Brake fluid—2–3 yearsAbsorbs moisture over time
Coolant60,000–100,000 mi5–10 yearsLong-life coolants last longer
Spark plugs60,000–100,000 mi—Iridium/platinum plugs at the long end
12V battery—3–5 yearsHeat shortens battery life
  • Engine oil & filter5,000–10,000 mi
    6–12 months
  • Tire rotation5,000–7,500 mi
    Every oil change
  • Engine air filter15,000–30,000 mi
    1–2 years
  • Cabin air filter15,000–25,000 mi
    1–2 years
  • Brake fluid—
    2–3 years
  • Coolant60,000–100,000 mi
    5–10 years
  • Spark plugs60,000–100,000 mi
    —
  • 12V battery—
    3–5 years
Typical intervals for modern cars. Severe service (towing, short trips, extreme heat or cold) shortens them.
09 —FAQ

2021 M4 questions

How many recalls does the 2021 BMW M4 have?

2 safety recalls as of Nov 9, 2026, according to NHTSA. Recall repairs are free at a dealer. Check your VIN to see whether your car is included and whether the repair was done.

What are the most common 2021 BMW M4 problems?

Owners filed 1 complaints with NHTSA. The most-cited components are service brakes (1). Complaints are unverified owner reports and aren't adjusted for how many cars were sold.

What MPG does the 2021 BMW M4 get?

The EPA rates the 2021 BMW M4 at 19 mpg combined, depending on engine and drivetrain (2 versions rated).

Data from NHTSA & EPA · synced Nov 9, 2026