Mercedes-Benz E-Class W123/S123/C123 250
1976–1986 · Coupe · Sedan
Chassis codes: W123 · S123 · C123
Version
Engine
2.5L 6-cyl · Petrol
Power
140 HP
Torque
200 Nm
Transmission
MANUAL
Drive
RWD
0-100 km/h
11.3 sec
Top Speed
185 km/h
Fuel consumption
11.7 L/100km
Body
Sedan
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Model overview
A model overview is not available for this generation yet.
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Engine overview · 2.5L 6-cyl PETROL
This naturally aspirated six-cylinder petrol engine is mechanically straightforward, but age-related cooling, fuel-system, timing and sealing issues deserve close attention in surviving W123 250 examples.
Pros
- Straightforward six-cylinder design
- Accessible routine servicing
Cons
- Age-related deterioration is likely to dominate ownership
- Carburettor and ignition condition affect running quality
- Cooling-system neglect can cause major engine damage
Common problems & ownership concerns
Potential impact: Low · Medium · High. This describes possible consequences, not fault likelihood.
- Cooling-system ageingHigh
- Carburettor and fuel-system wearMedium
- Timing-chain and valve-train wearHigh
- Oil leaks and seal ageingLow
Maintenance
Follow the vehicle-specific service schedule and verify coolant, ignition, fuel-system and valve-train maintenance for the exact engine specification.
These are general ownership concerns, not a diagnosis. Equipment and engine details vary by version and production date.
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