Mercedes-Benz E-Class W123/S123/C123 300 (5-cyl)
1976–1986 · Coupe · Sedan
Chassis codes: W123 · S123 · C123
Version
Engine
3.0L 5-cyl · Diesel
Power
88 HP
Torque
172 Nm
Transmission
MANUAL
Drive
RWD
0-100 km/h
17.8 sec
Top Speed
154 km/h
Fuel consumption
9.3 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 · 3.0L 5-cyl DIESEL
A durable older five-cylinder diesel family, but condition varies greatly with age, cooling-system care and fuel-system maintenance. This group includes both non-turbo and turbocharged applications.
Pros
- Durable mechanical design
- Straightforward servicing
- Well suited to high-mileage use when maintained
Cons
- Extensive age-related wear is likely
- Turbocharged versions have additional components
- Cold-start performance depends on glow and fuel systems
Common problems & ownership concerns
Potential impact: Low · Medium · High. This describes possible consequences, not fault likelihood.
- Cold-start and glow-plug wearMedium
- Fuel-injection system wear and leakageMedium
- Cooling-system deteriorationHigh
- Turbocharger and charge-air wear on turbocharged applicationsMedium
Maintenance
Follow the exact vehicle manual and engine application for oil, filters and servicing; turbocharged versions need especially careful oil and leak maintenance.
These are general ownership concerns, not a diagnosis. Equipment and engine details vary by version and production date.
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