Vehicle database
BMW 840i
G16 / 2021 / Coupe / Convertible / Gran Coupe
Global (varies by region: Europe, USA, Asia; engine output may differ slightly)Coverage: expanded
Year and trim selector
Choose the exact year and trim to see engine, oil and service details.
Engine codes by year
| Year | Trim | Engine codes | Displacement | Fuel system |
|---|---|---|---|---|
| 2021 | technical-profile | B58B30M0 | 2998 cc | Direct injection with high precision fuel delivery |
Oil capacity by engine
| Year | Engine codes | Oil type | Oil capacity | Fluid |
|---|---|---|---|---|
| 2021 | B58B30M0 | BMW Longlife-01 approved synthetic oil | 6.5 liters (includes oil filter and service fill) | BMW recommended synthetic ATF |
Technical specifications
- Engines: B58B30M0
- Transmissions: Not offered in 840i (2021), 8-speed Steptronic automatic, BMW recommended synthetic ATF
- Tire sizes: 245/40R20 (front), 275/35R20 (rear)
- Bolt pattern: Verify by exact trim and wheel package
- Wheel torque: Verify by VIN and wheel package
- Battery: Verify by engine, market and equipment package
Fluids and service data
- Engine oil: BMW Longlife-01 approved synthetic oil
- Transmission fluid: BMW recommended synthetic ATF
- Coolant: 9.5 liters
- Brake fluid: DOT 4, replace every 2 years
Known problems
- Minor coolant leaks from water pump in higher mileage
- Rare high pressure fuel pump issues