Research · Standard Sport Utility Vehicle 4WD
2021 BMW X6 MRecalls, problems, MPG & safety
NHTSA lists 0 safety recalls and 7 owner complaints for the 2021 BMW X6 M. Most complaints involve electrical system (2) and forward collision avoidance (2). The EPA rates it 15 mpg combined.
Combined MPG
15mpg
EPA · 2 versions
NHTSA overall
—
Not rated by NCAP
Safety recalls
0campaigns
NHTSA
Owner complaints
7
Top: electrical system
Fuel cost / yr
$5,300est.
EPA estimate, best version
Safety recalls
NHTSA campaigns for this model year
0 recalls found in NHTSA data for the 2021 BMW X6 M as of Oct 30, 2026.
Data from NHTSA Recalls API · synced Oct 30, 2026NHTSA vehicle page
Owner complaints by component
7 complaints filed with NHTSA · Dec 2020 – Jan 2026
- Electrical system2
- Forward collision avoidance2
- Service brakes, hydraulic1
- Air bags1
- Engine and engine cooling1
- Steering1
- Service brakes1
- Back over prevention1
- Lane departure1
Complaints are unverified owner reports to NHTSA and are not normalized for sales volume. One complaint can cite several components.
Data from NHTSA Complaints API · synced Oct 30, 2026NHTSA vehicle page
What owners report most
Verbatim excerpts from NHTSA complaints, by component
Electrical system
2 reports
“The contact owns a 2021 BMW X6. The contact stated that while driving at an undisclosed speed, the brake pedal was depressed; however, the vehicle failed to stop as intended. The contact shifted into park while the vehicle was in motion to stop the vehicle. The vehicle was taken to an independent mechanic; however, the failure was not duplicated. In addition, the contact stated that while attempting to start the vehicle, the vehicle failed to start. The vehicle started after several attempts. No warning lights were illuminated. The vehicle was taken to the dealer, where it was diagnosed with starter motor failure. The contact was informed that the starter motor needed to be replaced. The vehicle was not repaired. The contact referenced an unknown recall; however, the VIN was not under recall. The manufacturer was not made aware of the failure. The failure mileage was approximately 49,000.”
Forward collision avoidance
2 reports1 crash
“The automatic parking feature was being used to park in garage the vehicle proceed to back up without stopping and the emergency braking system didn’t engage leading to the vehicle crashing. I could have been injured if the structure of the house didn’t stop the vehicle. If someone had been behind the vehicle they would’ve been killed. The incident was reported to BMW, although the system malfunctioned the driver is responsible for maintaining control of the vehicle.The vehicle is has been repaired but system is still malfunctioning. These problems didn’t exist prior to crash.”
Service brakes, hydraulic
1 report
Data from NHTSA Complaints API (owner reports, unverified) · synced Oct 30, 2026
Engines, transmissions & drive
2 versions rated by the EPA
- EPA class
- Standard Sport Utility Vehicle 4WD
- Engines
- 4.4L 8-cyl turbo
- Transmissions
- Automatic (S8)
- Drive
- All-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 Oct 30, 2026EPA listing
EPA fuel economy by version
City / highway / combined, annual fuel cost and CO₂
EPA
| Version | City | Hwy | Comb. | Fuel / yr | CO₂ g/mi |
|---|---|---|---|---|---|
| X6 M Auto (S8), 8 cyl, 4.4 L, Turbo · All-Wheel Drive | 13 | 18 | 15 | $5,300 | 586 |
| X6 M Competition Auto (S8), 8 cyl, 4.4 L, Turbo · All-Wheel Drive | 13 | 18 | 15 | $5,300 | 586 |
- 15mpg comb.
- 15mpg comb.
Data from EPA fueleconomy.gov · synced Oct 30, 2026 · Fuel cost is EPA’s annual estimate (15,000 mi, 55% city)
NHTSA 5-Star Safety Ratings
1 tested variant
NHTSA has not published 5-Star Safety Ratings for the 2021 BMW X6 M as of Oct 30, 2026.
Data from NHTSA NCAP Safety Ratings API · synced Oct 30, 2026Vehicle 15256
Maintenance basics
General guidance, not the OEM schedule. Check your owner’s manual.
General guidance
| Item | Miles | Time | Note |
|---|---|---|---|
| Engine oil & filter | 5,000–10,000 mi | 6–12 months | Follow the oil-life monitor if fitted |
| Tire rotation | 5,000–7,500 mi | Every oil change | Check pressure monthly |
| Engine air filter | 15,000–30,000 mi | 1–2 years | Sooner in dusty areas |
| Cabin air filter | 15,000–25,000 mi | 1–2 years | |
| Brake fluid | — | 2–3 years | Absorbs moisture over time |
| Coolant | 60,000–100,000 mi | 5–10 years | Long-life coolants last longer |
| Spark plugs | 60,000–100,000 mi | — | Iridium/platinum plugs at the long end |
| 12V battery | — | 3–5 years | Heat 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.
2021 X6 M questions
How many recalls does the 2021 BMW X6 M have?
0 recalls found in NHTSA data as of Oct 30, 2026.
What are the most common 2021 BMW X6 M problems?
Owners filed 7 complaints with NHTSA. The most-cited components are electrical system (2), forward collision avoidance (2), service brakes, hydraulic (1). Complaints are unverified owner reports and aren't adjusted for how many cars were sold.
What MPG does the 2021 BMW X6 M get?
The EPA rates the 2021 BMW X6 M at 15 mpg combined, depending on engine and drivetrain (2 versions rated).
Data from NHTSA & EPA · synced Oct 30, 2026