BMW 8 Series G14/G15/G16 840i (2993 cc)
Model overview
A premium grand tourer with strong road presence and motorway refinement. Equipment and chassis costs remain substantial.
Pros
- Grand-touring comfort
- Stable road manners
- Premium cabin
Cons
- High servicing costs
- Expensive consumables
- Complex electronics
Common problems & ownership concerns
Potential impact: Low · Medium · High. This describes possible consequences, not fault likelihood.
- Electrical equipment faultsMedium
- Suspension wearMedium
- Cooling-system leaks on applicable versionsMedium
Maintenance
Follow the exact powertrain schedule and maintain chassis and comfort equipment regularly.
Engine overview · 3.0L 6-cyl PETROL
The 3.0-litre petrol six-cylinder used in the supplied 2018–2022 840 i xDrive automatic application is refined and generally durable, provided servicing and cooling-system condition are kept under control.
Pros
- Smooth, powerful and well suited to the 8 Series
- Refined six-cylinder character
- Good long-distance usability
Cons
- Complex turbocharged engine systems can be costly to repair
- Service history is especially important
Common problems & ownership concerns
Potential impact: Low · Medium · High. This describes possible consequences, not fault likelihood.
- Cooling-system leaks or component wearMedium
- Oil leaks from seals or gasketsMedium
- Ignition or fuel-system faults under loadMedium
Maintenance
Use the VIN-specific service schedule and BMW-approved oil; confirm spark-plug, filter and coolant requirements for the exact vehicle.
These are general ownership concerns, not a diagnosis. Equipment and engine details vary by version and production date.
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