BMW 7 Series E23 730
Model overview
A refined classic sedan whose ownership quality depends heavily on corrosion, restoration standard, service records and the exact six-cylinder specification fitted.
Pros
- Comfortable, spacious classic BMW sedan.
- Smooth six-cylinder petrol character.
- Strong enthusiast and parts knowledge.
Cons
- Rust and age-related deterioration can be extensive.
- Electrical and luxury equipment may need restoration.
- Specifications vary substantially by year and market.
Common problems & ownership concerns
Potential impact: Low · Medium · High. This describes possible consequences, not fault likelihood.
- Body corrosion in structural and panel areasHigh
- Ageing electrical and interior equipmentMedium
- Suspension and steering wearMedium
Maintenance
Follow the installed engine’s documented schedule and verify coolant, belt, hose and fluid history by VIN and engine code.
Engine overview · 3.0L 6-cyl PETROL
A smooth, naturally aspirated classic inline-six with a relatively straightforward layout, but age, maintenance history and year- or market-specific equipment strongly affect ownership experience.
Pros
- Smooth inline-six character
- Naturally aspirated simplicity
- Manual and automatic applications were available
Cons
- Cooling-system condition is important
- Older seals, wiring and ancillaries may need attention
- Fuel and ignition equipment varies by specification
Common problems & ownership concerns
Potential impact: Low · Medium · High. This describes possible consequences, not fault likelihood.
- Cooling-system ageingHigh
- Timing-chain and tensioner wearMedium
- Oil leaks and seal deteriorationMedium
- Fuel and ignition equipment variationMedium
Maintenance
Follow VIN- and engine-code-specific service information, with particular attention to cooling, ignition, fuel and timing-chain condition.
These are general ownership concerns, not a diagnosis. Equipment and engine details vary by version and production date.
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