Mercedes-Benz S-Class W116 450 (4520 cc)
Model overview
The W116 S-Class can provide durable, comfortable classic-car ownership, but condition matters greatly. Rust, ageing suspension and brakes, electrical equipment and engine-specific fuel-system maintenance deserve close attention across this mixed 1972–1980 range.
Pros
- Comfortable, substantial classic luxury sedan
- Strong long-distance manners
- Wide petrol and diesel engine choice
Cons
- Rust repair can be extensive
- Period electrical and climate equipment is complex
- Running costs vary considerably by engine and specification
Common problems & ownership concerns
Potential impact: Low · Medium · High. This describes possible consequences, not fault likelihood.
- Structural and body corrosionHigh
- Ageing suspension, steering and braking hydraulicsHigh
- Electrical and climate-control faultsMedium
Maintenance
Follow the exact engine and market manual, with particular attention to fluids, belts, hoses, brake components, fuel systems and age-sensitive rubber.
Engine overview · 4.5L 8-cyl PETROL
A smooth, durable classic V8, but current condition matters greatly. The 450 SE’s injection system and emissions equipment vary by year, while ageing cooling, timing and fuel-system components deserve careful attention.
Pros
- Smooth, strong V8 character
- Well-supported classic Mercedes-Benz engine
- Good access for major servicing
Cons
- Age-sensitive seals, hoses and wiring
- Different injection systems by year
- Neglected timing or cooling maintenance can be costly
Common problems & ownership concerns
Potential impact: Low · Medium · High. This describes possible consequences, not fault likelihood.
- Timing-chain and guide wearHigh
- Fuel-injection system deteriorationMedium
- Cooling-system and gasket leaksHigh
- Vacuum and intake-air leaksMedium
Maintenance
Follow vehicle-specific Mercedes-Benz service information and confirm the exact injection system before servicing.
These are general ownership concerns, not a diagnosis. Equipment and engine details vary by version and production date.
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