Factory specifications, fluid capacities, torque values, EPA fuel economy and the federal safety record for the 2020 M8.
The 2020 BMW M8 is the focus of this overview, pairing an eight-speed automatic (S8) transmission with EPA fuel-economy ratings of 15 mpg city, 21 mpg highway, and 17 mpg combined. In the 2019–2021 M8 complaint record, the 2020 model year carries the full weight of the data as both the highest- and lowest-complaint year with five owner reports, concentrated in the electrical system, vehicle speed control, and engine areas, and it is tied to five recalls. That makes the 2020 model year the single reference point for assessing this generation's early reliability.
Fluid capacities, tune-up values and fuel economy at a glance.
Replacement part sizes and factory part numbers — battery, bulbs, filters and belts.
From the factory this vehicle uses OE oil filter 11427848321. Each part links to every other vehicle that shares it, so a part you already stock may fit more of your fleet than you'd expect.
| Engine oil filter | 11427848321 |
| Engine air filter | 13717852382 alt 13717852380 |
| Spark plug | 12120054451 |
| Battery | 61217908325 |
| Front wiper blades | 61619478909 |
| Thermostat | 11538632664 alt 11537586885 |
| Cabin air filter | 64115A1BDB6 alt 64115A1BDB7 |
Engine, drivetrain, dimensions and economy.
| Transmission | Automatic (S8) |
| Overall length | 191.3 in |
| Overall width | 74.8 in |
| Overall height | 53.1 in |
| Wheelbase | 111 in |
| Curb weight | 4570 lb |
| Track (front / rear) | 64.2 / 64.6 in |
| Weight distribution (front / rear) | 53/47 |
| EPA city / highway / combined | 15 / 21 / 17 mpg |
| Drivetrain | All-Wheel Drive |
| Recommended fuel | Premium Gasoline |
0–60 mph, quarter-mile, horsepower and torque from independent road tests.
Independent road tests for the M8 of this era, listed by trim and engine — this page spans more than one engine, so no single horsepower figure is shown.
| Year | Trim / engine | 0–60 | ¼ mile | HP | Drivetrain |
|---|---|---|---|---|---|
| 2020 | Competition Coupe 4.4L Twin-Turbo V8 | 2.50 sec | 10.70 sec | 617 hp | AWD |
| 2020 | Competition Gran Coupe 4.4L Twin-Turbo V8 | 2.70 sec | 10.80 sec | 617 hp | AWD |
| 2020 | Competition Coupe 4.4L Twin-Turbo V8 | 3.30 sec | 11.40 sec | 617 hp | AWD |
Capacities, torques and tune-up values from the factory service manual.
Torque lug nuts to 103 ft-lbs.
| Engine Flywheel Bolts | 88.0 ft-lbs |
| Oil Pump to Cylinder BLock Bolts/Studs | 18.0 ft-lbs |
| Lug Nuts | 103 ft-lbs |
| 1 | Bearing Cap to Cylinder Head | 88 in |
| 1 | 44.0 inch lbs., Step 2: 15.0 ft. lbs., Step 3: 22.0 ft. lbs., Step 4: 75°, Step 4: Loosen Bolts 180°, Step 6: 44.0 inch lbs., Step 7: 15.0 ft. lbs., Step 8: 22.0 ft. lbs., Step 9: 75°, Step 10: Loosen 180°, Step 11: 44.0 inch lbs., Step 12: 15.0 ft. lbs., Step 13: 22.0 ft. lbs., Step 14: 75°, Step 15: Loosen bolts., Step 16: 44.0 inch lbs., Step 17: 15.0 ft. lbs., Step 18: 22.0 ft. lbs., Step 19: 75° | 44 in |
| 1 | 22.0 ft. lbs., Step 2: 90°, Step 3: 140° | 22 ft. lbs |
Normal service, condensed from the factory interval matrix.
Under the factory schedule, replace the engine oil and filter at 1,200 mi.
| At 1,200 mi | Drive Axle Assembly (drain & refill) · Engine Oil (drain & refill) · Engine Oil Filter (replace) |
Owner-reported issues, recalls, investigations and service bulletins on record with NHTSA — an unfiltered look at what owners actually experience.
The 2020 BMW M8 shows a marked increase in federal actions compared with the surrounding model years: complaints rose from 0 in 2019 to 5 in 2020 before dropping back to 0 in 2021, while recalls climbed from 1 in 2019 to a peak of 5 in 2020 and then fell to 2 in 2021. Technical service bulletins also spiked in 2020 to 191, far above the 9 issued in 2019 and the 130 in 2021. The target‑year complaint areas are spread across electrical, fuel/propulsion, braking/vehicle‑speed‑control, and power‑train systems, each cited once, and there is one crash‑related complaint with no fire complaints recorded. Because the data do not specify root causes for these issues, the spike appears isolated to the 2020 model year. Consequently, the 2020 BMW M8 represents a less favorable year to buy unless any outstanding recalls have been verified as completed.
All 5 complaints on record, top 5 components.
Source: NHTSA Office of Defects Investigation complaint database.
Showing 2 of 3 campaigns on record for this vehicle.
BMW of North America, LLC (BMW) is recalling certain 2019-2021 X3 sDrive30i, X3 xDrive30i, X3 M40i, X3M, X4 xDrive30i, X4 M40i, M550i, X4M, X5 sDrive40i, X5 xDrive40i, X5 xDrive50i, X5M, X5 M50i, X7 xDrive40i, X7… Remedy: BMW will notify owners, and dealers will inspect the rearview camera software and update it if necessary, free of charge. The recall began April 16, 2021. Owners may contact BMW…
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… Remedy: BMW will notify owners, and dealers will replace the integrated brake system, free of charge. Owner notification letters were mailed on May 25, 2021. Owners may contact BMW…
Showing 5 of 191 bulletins on record with NHTSA.
| Bulletin | Date | Component | Summary |
|---|---|---|---|
| B011724 | 2025-09-19 | Engine | The Fuel Injector Condition-Specific Repair Coverage Program applies to qualifying… |
| B011724 | 2025-07-09 | Fuel/Propulsion System | The Fuel Injector Condition-Specific Repair Coverage Program applies to qualifying… |
| B063525 | 2025-06-17 | Engine | Engine Return |
| B011724 | 2025-01-21 | Fuel/Propulsion System | The Fuel Injector Condition-Specific Repair Coverage Program applies to qualifying… |
| B010821 | 2024-12-11 | Engine | The NVLD limited emission related warranty for defects in materials or workmanship has… |
The most common OBD-II codes for this vehicle's emissions system. These are standardized SAE J2012 definitions, not vehicle-specific fault reports.
Decode factory build data for a specific vehicle by VIN.
Find every vehicle that shares this one's battery, bulbs, oil capacity, platform or parts.
Cross-vehicle references for the kinds of data on this page.
NHTSA lists 5 recall campaign(s) for this model year. Check your specific vehicle by VIN.
EPA figures are 15 city / 21 highway / 17 combined mpg.