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Research · Subcompact Cars · 2 NHTSA variants

2015 BMW 6 SeriesRecalls, problems, MPG & safety

NHTSA lists 1 safety recall and 9 owner complaints for the 2015 BMW 6 Series. Most complaints involve wheels (3) and electrical system (2). The EPA rates it 20–25 mpg combined.

Check a VINAdd to my garage
Combined MPG
20–25mpg
EPA · 6 versions
NHTSA overall
—
Not rated by NCAP
Safety recalls
1campaigns
Latest Jul 2024
Owner complaints
9
Top: wheels
Fuel cost / yr
$3,000est.
EPA estimate, best version
01 —Recalls

Safety recalls

1 NHTSA campaign · applies to some vehicles, check your VIN

Air bags: inflator module

Free remedy

BMW of North America, LLC (BMW) is recalling certain 2015 6 Series Gran Coupe, 2014 5 Series Gran Turismo, 2014 5 Series Sedan, 2015 6 Series Convertible, 2015 6 Series Coupe, 2014 X5, 2013-2014 X3, 2014-2015 3 Series Sedan, 2014 4 Series Coupe, 2014 4 Series Convertible, 2014 3 Series Gran Turismo, and 2015 4 Series Gran Coupe vehicles. Please see the recall report for the complete list of models. The driver's air bag inflator may explode during deployment, due to a manufacturing defect.

Air bagsReported Jul 11, 2024NHTSA 24V527000
Data from NHTSA Recalls API · synced Nov 12, 2026 · All recall detailsNHTSA vehicle page
02 —Complaints

Owner complaints by component

9 complaints filed with NHTSA · Jul 2016 – Sep 2026
  1. Wheels3
  2. Electrical system2
  3. Engine2
  4. Engine and engine cooling1
  5. Structure1
  6. Lane departure1
  7. Power train1
  8. Service brakes1
  9. Other / unknown1

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 6 Series model year we’ve synced.

View as table
Model yearNHTSA complaints
201223
201322
201413
20159
Crashes reported
1
Fires reported
0
Injuries reported
2
Deaths reported
0
Data from NHTSA Complaints API · synced Nov 12, 2026NHTSA vehicle page
03 —Common problems

What owners report most

Verbatim excerpts from NHTSA complaints, by component

Wheels

3 reports
“RIM'S CRACKING I PURCHASED THIS CAR IN AUGUST OF 2018 ACCORDING TO THE ODOMETER IN HAD JUST A LITTLE MORE THAN 28000 MILES OTHER THAN THE RIMS I'VE BEEN VERY PLEASE WITH THE CAR I TOOK THE CAR BACK TO THE PLACE WHERE I PURCHASED IT THEY ACCESS THE DAMAGES AND SAID THAT THEY COULD BE REPAIRED LESS THAN 2 MONTHS LATER AFTER THE REPAIR ONE OF THEM HAS CRACKED AGAIN THE CRACKS WAS ON THE BACK SIDE OF THE RIM I HAVE ALSO DISCOVERED THAT ON ONE OF THEM THERE'S A CRACK ON THE SPOKE AND THAT'S WHAT PROMPTED ME TO FILE THIS COMPLAINT I'VE HAD PROBLEMS WITH 3 OUT OF 4 RAMS THAT I KNOW OF. I'M SERIOUSLY CONCERNED ABOUT THIS PROBLEM.”
Owner complaint to NHTSAFiled Apr 14, 2019WheelsODI 11196146

Electrical system

2 reports1 crash
“Exposed junction box in engine bay as well as water leaking through yellow grommet destroying footwell electronics as well as shorting junction box in engine bay. Water ingress also leaking into glove box electrical fuses and components. Also water leaking into trunk shorting out telemetrics battery as well as fuses of passenger side trunk fuse box. My ac compressor also blew simultaneously. There’s an active TSB for other models facing the same issue and should also cover this model as well.”
Owner complaint to NHTSAFiled Sep 26, 2026Electrical systemODI 11767176

Engine

2 reports1 crash
“Unknown”
Owner complaint to NHTSAFiled Jan 20, 2022Unknown or other, Engine, Lane departureODI 11448242
Send a problem to a mechanic on findmechanic.ai
Data from NHTSA Complaints API (owner reports, unverified) · synced Nov 12, 2026
04 —Key specs

Engines, transmissions & drive

6 versions rated by the EPA
EPA class
Subcompact Cars, Compact Cars
Engines
3.0L 6-cyl turbo · 4.4L 8-cyl turbo
Transmissions
Automatic (S8)
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 12, 2026EPA listing
05 —Fuel economy

EPA fuel economy by version

City / highway / combined, annual fuel cost and CO₂
EPA
VersionCityHwyComb.Fuel / yrCO₂ g/mi
640i Coupe
Auto (S8), 6 cyl, 3.0 L, Turbo · Rear-Wheel Drive
213125$3,000361
640i Convertible
Auto (S8), 6 cyl, 3.0 L, Turbo · Rear-Wheel Drive
203024$3,150376
640i Gran Coupe
Auto (S8), 6 cyl, 3.0 L, Turbo · Rear-Wheel Drive
203024$3,150376
650i Convertible
Auto (S8), 8 cyl, 4.4 L, Turbo · Rear-Wheel Drive
172420$3,750441
650i Coupe
Auto (S8), 8 cyl, 4.4 L, Turbo · Rear-Wheel Drive
172420$3,750441
650i Gran Coupe
Auto (S8), 8 cyl, 4.4 L, Turbo · Rear-Wheel Drive
172420$3,750441
  • 640i Coupe
    Auto (S8), 6 cyl, 3.0 L, Turbo
    21 city · 31 hwy · $3,000/yr
    25
    mpg comb.
  • 640i Convertible
    Auto (S8), 6 cyl, 3.0 L, Turbo
    20 city · 30 hwy · $3,150/yr
    24
    mpg comb.
  • 640i Gran Coupe
    Auto (S8), 6 cyl, 3.0 L, Turbo
    20 city · 30 hwy · $3,150/yr
    24
    mpg comb.
  • 650i Convertible
    Auto (S8), 8 cyl, 4.4 L, Turbo
    17 city · 24 hwy · $3,750/yr
    20
    mpg comb.
  • 650i Coupe
    Auto (S8), 8 cyl, 4.4 L, Turbo
    17 city · 24 hwy · $3,750/yr
    20
    mpg comb.
  • 650i Gran Coupe
    Auto (S8), 8 cyl, 4.4 L, Turbo
    17 city · 24 hwy · $3,750/yr
    20
    mpg comb.
Estimate your fuel costCost of ownership
Data from EPA fueleconomy.gov · synced Nov 12, 2026 · Fuel cost is EPA’s annual estimate (15,000 mi, 55% city)
06 —Safety

NHTSA 5-Star Safety Ratings

6 tested variants
NHTSA has not published 5-Star Safety Ratings for the 2015 BMW 6 Series as of Nov 12, 2026.
Data from NHTSA NCAP Safety Ratings API · synced Nov 12, 2026Vehicle 9446Vehicle 9445Vehicle 9444
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

2015 6 Series questions

How many recalls does the 2015 BMW 6 Series have?

1 safety recall as of Nov 12, 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 2015 BMW 6 Series problems?

Owners filed 9 complaints with NHTSA. The most-cited components are wheels (3), electrical system (2), engine (2). Complaints are unverified owner reports and aren't adjusted for how many cars were sold.

What MPG does the 2015 BMW 6 Series get?

The EPA rates the 2015 BMW 6 Series at 20–25 mpg combined, depending on engine and drivetrain (6 versions rated).

Data from NHTSA & EPA · synced Nov 12, 2026