2026 BMW 4 Series

Owner complaints, recalls, fuel economy and safety ratings from public NHTSA and EPA data, updated Oct 17, 2026.

Fuel economy
27–31 mpgcombined; city 24–28, highway 31–36; every version of this model year
Five years of fuel
$12,980–$14,910U.S. average; Ohio $12,230–$14,050 at local prices; every version of this model year; fuel only, not other costs of owning it; 15,000 miles a year, at EIA fuel prices for the week of Oct 12, 2026
NHTSA overall safety rating
Not ratedNHTSA has no overall rating for this year
Recall campaigns
1over its history; check a VIN for open ones
Owner complaints
2filed with NHTSA; not adjusted for sales

Trims

NHTSA's VIN data lists these trims for the 2026 4 Series. A trim's engine and numbers are shown as its own only where EPA names versions after the trim and no other version could be it; "seen with" means a source shows that engine on the trim, not that it was the only one. Recalls and complaints cover the whole model year: whether a recall applies to a car depends on its VIN, on NHTSA's recall lookup.

Problems owners report

Owners have filed 2 complaints with NHTSA about the 2026 4 Series. These are unverified owner reports, counted by the part of the car they name; one complaint can name several parts. Counts aren't adjusted for how many were sold, so they don't show how reliable a car is.

Complaints by part of the car
PartComplaintsCrashesFiresInjuries
Electrical system1000
Power train1000
Tires1000

Complaints by model year

Newer years have had less time to collect complaints, and counts aren't adjusted for sales, so a shorter bar doesn't mean a more reliable year.

  1. 201459
  2. 201594
  3. 201654
  4. 201730
  5. 201843
  6. 201926
  7. 20205
  8. 202121
  9. 20228
  10. 20236
  11. 20243
  12. 20258
  13. 20262

Every 4 Series year side by side

Recalls

NHTSA lists 1 recall campaign for the 2026 4 Series over its history. Campaigns are matched by model and year, so each one may apply to a given car, and its repair may already be done: check a VIN on NHTSA's recall lookup for the open recalls on that exact car.

Electrical system: 12v/24v/48v battery; Electrical system: wiring

NHTSA campaign 25V643000 · reported Sep 25, 2025 · 4 vehicles potentially affected

BMW of North America, LLC (BMW) is recalling certain 2026 M4 and 430i vehicles. The positive battery cables may not be properly connected to the power distribution box, resulting in an engine stall and a fire.

Risk: An engine stall increases the risk of a crash and a fire increases the risk of injury.

Remedy: Dealers will inspect and replace cables and power distribution box as necessary, free of charge. Owner notification letters were mailed November 20, 2025. Owners may contact BMW customer service at 1-800-525-7417. Vehicle Identification Numbers (VINs) involved in this recall will be searchable on NHTSA.gov beginning November 17, 2025.

NHTSA's record and documents

Service bulletins and investigations

Carmakers sent NHTSA 9 service bulletins and notices that cover the 2026 4 Series, the latest on Aug 27, 2026. They tell dealers how to fix known issues.

The parts they mention most: electrical system (6), service brakes (2), structure (1).

NHTSA hasn't opened a defect investigation that covers this model year.

Maintenance

Oil

The owner's manual gives the oil and how often to change it. We show oil facts only once we've checked them against the manual, and we haven't yet for the 2026 4 Series.

Oil change near you: Jiffy Lube · Take 5

Specs

EPA class: subcompact cars. EPA greenhouse gas score: 5–6 out of 10. Each version EPA tested:

VersionEngineTransmissionFuelCity / hwy / comb
430i
Rear-Wheel Drive
2.0 L, 4 cyl, turboAutomatic (S8)Premium Gasoline28 / 36 / 31
430i
Rear-Wheel Drive
2.0 L, 4 cyl, turboAutomatic (S8)Premium Gasoline27 / 35 / 30
430i Gran
Rear-Wheel Drive
2.0 L, 4 cyl, turboAutomatic (S8)Premium Gasoline27 / 35 / 30
430i xDrive
All-Wheel Drive
2.0 L, 4 cyl, turboAutomatic (S8)Premium Gasoline27 / 34 / 30
430i xDrive
All-Wheel Drive
2.0 L, 4 cyl, turboAutomatic (S8)Premium Gasoline24 / 33 / 28
430i xDrive Gran
All-Wheel Drive
2.0 L, 4 cyl, turboAutomatic (S8)Premium Gasoline25 / 34 / 29
M440i
Rear-Wheel Drive
3.0 L, 6 cyl, turboAutomatic (S8)Premium Gasoline27 / 34 / 30
M440i
Rear-Wheel Drive
3.0 L, 6 cyl, turboAutomatic (S8)Premium Gasoline27 / 33 / 29
M440i Gran
Rear-Wheel Drive
3.0 L, 6 cyl, turboAutomatic (S8)Premium Gasoline26 / 32 / 28
M440i xDrive
All-Wheel Drive
3.0 L, 6 cyl, turboAutomatic (S8)Premium Gasoline26 / 33 / 29
M440i xDrive
All-Wheel Drive
3.0 L, 6 cyl, turboAutomatic (S8)Premium Gasoline25 / 32 / 28
M440i xDrive Gran
All-Wheel Drive
3.0 L, 6 cyl, turboAutomatic (S8)Premium Gasoline25 / 31 / 27

Sources and dates

Fuel cost: EPA mpg with fuel prices for the week of Oct 12, 2026 and electricity prices for Jul 2026. Source: U.S. Energy Information Administration (Oct 2026). Complaints are unverified reports owners filed with NHTSA. About the data