2023 BMW X4 M40i
Unverified
All photo credits
- Photo: BMW G02 FL 1X7A0335 by Alexander Migl, CC BY-SA 4.0, via Wikimedia Commons
- Photo: BMW G02 FL IMG 6422 by Alexander Migl, CC BY-SA 4.0, via Wikimedia Commons
- Photo: BMW X4 (G02) China (15) by Dinkun Chen, CC BY-SA 4.0, via Wikimedia Commons
- Photo: BMW X4 (G02) China (14) by Dinkun Chen, CC BY-SA 4.0, via Wikimedia Commons
- Photo: 2018 BMW X4 xDrive20d M Sport Automatic 2.0 Rear by Vauxford, CC BY-SA 4.0, via Wikimedia Commons
The 2023 BMW X4 M40i is a 382-hp 3.0-liter turbocharged inline-6 SUV with an 8-speed steptronic automatic and all-wheel drive. It starts at $65,400 MSRP and is rated at 23 mpg combined.
It makes 382 horsepower at 5,800 rpm and 369 lb-ft of torque at 1800-5000 rpm. EPA fuel-economy estimates are 21 mpg city and 26 mpg highway (23 mpg combined).
The X4 measures 187.5 inches long on a 112.7-inch wheelbase and has a curb weight of 4,323 lb.
| Spec | Value |
|---|---|
| Vehicle | |
| Body Type | SUV |
| Powertrain | Gas |
| Price | |
| MSRP | $65,400 |
| MSRP with Destination | $66,395 |
| Destination Charge | $995 |
| Engine | |
| Engine Type | TwinPower Turbo inline-6 + 48V mild hybrid (B58) |
| Displacement | 3 L |
| Horsepower | 382 hp @ 5,800 rpm |
| Torque | 369 lb-ft @ 1800-5000 rpm |
| Valvetrain | DOHC 24V VALVETRONIC Double-VANOS |
| Bore and Stroke | 82.0 x 94.6 |
| Compression Ratio | 11.0:1 |
| Injection Type | High Precision Direct Injection, 48V MHEV (11 hp) |
| Drivetrain | |
| Drive Type | AWD (xDrive) |
| Transmission | |
| Transmission | 8-speed Steptronic automatic |
| 1st Gear | 5 |
| 2nd Gear | 3.2 |
| 3rd Gear | 2.143 |
| 4th Gear | 1.72 |
| 5th Gear | 1.314 |
| 6th Gear | 1 |
| 7th Gear | 0.822 |
| 8th Gear | 0.64 |
| Reverse | 3.456 |
| Final Drive | 3.385 |
| Fuel Economy | |
| City | 21 MPG |
| Highway | 26 MPG |
| Combined | 23 MPG |
| Recommended Fuel | Premium unleaded (AKI 91 recommended; 89 min) |
| Tank Capacity | 17.2 gal |
| Suspension | |
| Front Suspension | Aluminum double-joint spring strut axle |
| Rear Suspension | Five-link axle in lightweight steel construction |
| Turning Diameter | 40 ft |
| Brakes | |
| Front Brake Calipers | Four-piston fixed (M Sport) |
| Tires & Wheels | |
| Wheels Front | 7.5J x 19 LM |
| Wheels Rear | 7.5J x 19 LM |
| Tires Front | 245/50 R19 |
| Tires Rear | 245/50 R19 |
| Dimensions & Weight | |
| Length | 187.5 in |
| Width | 76.3 in |
| Height | 63.8 in |
| Wheelbase | 112.7 in |
| Front Track | 63.1 in |
| Rear Track | 64.8 in |
| Ground Clearance | 8 in |
| Cargo Volume | 18.5 ft³ |
| Curb Weight | 4,323 lbs |
| Weight Distribution (F/R) | 50.1% / 49.9% |
| Interior | |
| Headroom Front | 39 in |
| Headroom Rear | 37.2 in |
| Legroom Front | 40.7 in |
| Legroom Rear | 35.5 in |
| Shoulder Room Front | 57.5 in |
| Shoulder Room Rear | 56 in |
Similar cars
Rivals to the 2023 BMW X4 M40i with similar size, power and price from around the same years.
Safety & Recalls
NCAP safety ratings
Tested, but no star ratings were published (2023 BMW X4 SUV AWD).
Recalls
2 recalls on file with NHTSA for the 2023 BMW X4. Not every recall applies to every trim or VIN — check yours at nhtsa.gov/recalls.
Jan 30, 2026 · ELECTRICAL SYSTEM:STARTER ASSEMBLY
BMW of North America, LLC (BMW) is recalling certain 2021-2023 Toyota Supra, 2022-2023 2 Series Coupe, 2021-2024 5 Series (xDrive), 2021-2022 Z4, 2022-2024 4 Series (Gran Coupe), 2021-2024 4 Series (Convertible and xDrive Convertible), 2021-2023 4 Series (Coupe), 2021-2024 3 Series, 2021-2023 X4, 2021-2024 X3 vehicles. Please see the recall report for a complete list of all models. The engine starter may overheat and catch fire due to wear on an internal component.
Consequence: Fire increases the risk of injury.
Remedy: Dealers will replace the engine starter, free of charge. Owner notification letters were mailed July 21, 2026. Owners may contact BMW customer service at 1-800-525-7417 or Toyota's customer service at 1-800-331-4331. Vehicle Identification Numbers (VINs) involved in this recall will be searchable on NHTSA.gov beginning March 24, 2026.
NHTSA campaign 26V056000
Dec 6, 2023 · POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM)
BMW of North America, LLC (BMW) is recalling certain 2023 Toyota GR Supra, 3 Series Sedan (330i xDrive, M340i xDrive, M3), 5 Series Sedan (530i, 530i xDrive, M5), 4 Series Gran Coupe (430i, 430i xDrive), 4 Series Coupe (430i, 430i xDrive, M440i xDrive), 4 Series Convertible (430i, 430i xDrive, M440i xDrive), 8 Series Coupe (840i, M850i xDrive, M8), 8 Series Convertible (840i, M850i xDrive, M8), 8 Series Gran Coupe (850i xDrive, M8), X3 SAV (X3 xDrive30i, X3M), X4 SAV (X4 xDrive30i), X5 SAV (X5 xDrive40i, X5 M50i, X5M), X6 SAV (X6 xDrive40i, X6 M50i, X6M), and Z4 sDrive30i, Z4 M40i vehicles. The weld seam of the integrated transmission control unit's cover may not have been manufactured properly, which could allow automatic transmission oil to leak into the transmission control unit.
Consequence: Transmission oil that leaks into the control unit can lead to a seizure of the transmission gears, causing a sudden loss of drive power and increasing the risk of a crash.
Remedy: Dealers will replace the transmission mechatronics module and the automatic transmission fluid, as necessary, free of charge. Owner notification letters were mailed January 26, 2024. Owners may contact BMW customer service at 1-800-525-7417.
NHTSA campaign 23V821000
8 owner complaints to NHTSA for the 2023 BMW X4
Owner Complaints
8 owner complaints filed with NHTSA for the 2023 BMW X4 (2 mention a crash, 1 a fire, 1 an injury). See all on nhtsa.gov
| Forward Collision Avoidance | 2 |
| Service Brakes | 2 |
| Air Bags | 1 |
| Electrical System | 1 |
| Engine And Engine Cooling | 1 |
| Power Train | 1 |
Complaints are unverified reports submitted to NHTSA by owners. They cover the whole model year, not a specific trim, and a count alone doesn't show how common a problem is.
Source: US National Highway Traffic Safety Administration (nhtsa.gov), matched as 2023 BMW X4. US-market vehicles only; data cached for up to 7 days.