BMW 7 Series E65/E66/E67/E68 740d
Model overview
A refined but highly complex luxury saloon. Long-term condition depends heavily on engine, equipment, electrical health and maintenance history.
Pros
- Exceptional comfort and refinement
- Stable, quiet long-distance car
- Wide choice of engines and specifications
Cons
- Complex electronics
- Potentially costly suspension and cooling repairs
- Equipment varies significantly by version
Common problems & ownership concerns
Potential impact: Low · Medium · High. This describes possible consequences, not fault likelihood.
- Age-related electronic and iDrive faultsMedium
- Suspension wear and ride-height faults where fittedHigh
- Corrosion and water-ingress inspectionMedium
Maintenance
Follow the VIN- and engine-specific schedule, with particular attention to cooling, fluids, suspension, battery health and documented electronic-system repairs.
Engine overview · 3.9L 8-cyl DIESEL
A refined and powerful long-distance diesel, but the 740d combines an ageing V8, turbocharging and complex fuel and emissions hardware that can make neglected examples expensive to restore.
Pros
- Strong torque for relaxed cruising.
- Refined long-distance performance.
- Capable core engine when carefully serviced.
Cons
- Complex turbo and fuel systems.
- Restricted access can increase labour costs.
- Age-related cooling and emissions faults are possible.
Common problems & ownership concerns
Potential impact: Low · Medium · High. This describes possible consequences, not fault likelihood.
- Turbocharger and boost-control wearHigh
- Diesel injector and fuel-system conditionHigh
- Intake and exhaust-system carbon buildupMedium
- Cooling-system and oil-leak age deteriorationHigh
Maintenance
Follow the VIN- and engine-code-specific service schedule with the correct diesel oil and filters; retain records for turbo, cooling and fuel-system work.
These are general ownership concerns, not a diagnosis. Equipment and engine details vary by version and production date.
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