Mercedes-Benz W123 S123 300 TD (80 Hp) Automatic


Overall Rating

8.5 / 10
Safety N/A / 5
Not Rated
Engine 4.0 / 5
Value 4.0 / 5
Performance 3.5 / 5
Comfort 4.5 / 5
People\'s Opinion N/A / 5
Not Rated

Mercedes-Benz W123:

The Mercedes-Benz W123 is a range of executive cars produced by German manufacturer Mercedes-Benz from November 1975 to January 1986. The W123 models surpassed their predecessor, the Mercedes-Benz W114, as the most successful Mercedes-Benz, selling 2. 7 million units before production ended in the autumn of 1985 for the saloon/sedan versions and January 1986 for coupés and estates/station wagons.
Following a slow production build-up during the first year, customers who placed their orders faced a lengthy waiting period of nine to twelve months. A black market emerged for the customers who were willing to pay more for immediate delivery. The slightly used W123 commanded about 5,000 Deutsche Mark premium over its original sale price....(Read more on Wikipedia)

S123 Overview:

Mercedes-Benz W123 (S123). With 172 Nm of torque, it offers ample pulling power. It has moderate fuel consumption (~10.4 l/100km). With a weight of 1570 kg, it falls in the mid‑range. Rear‑wheel drive offers dynamic handling and sporty feedback. Acceleration is relatively slow (0–100 km/h in 21.9 s). The top speed reaches 143 km/h. A car with an extended rear cargo area, combining passenger comfort with increased storage. Seating for 5 makes it ideal for daily use.

Safety Rating
Not rated
Euro NCAP Year N/A
Adult Occupant N/A
Stars N/A
Expert Note:
The Mercedes-Benz W123/S123 generation was produced before Euro NCAP testing began in 1997 and was not officially rated. While built with robust materials for its era, its safety features are rudimentary by modern standards.

300 TD (80 Hp) Automatic Verdict:

Rating 3 stars

Performance Verdict

Very slow acceleration, primarily designed for durability and economy rather than speed. The automatic transmission further blunts performance.

Fuel Economy

Excellent fuel economy for its size and era, making it a cost-effective long-distance cruiser.

Best Use Case: Long-distance cruising / Utility

Pros and Cons:

Pros:

  • • Exceptional build quality and durability
  • • Timeless, elegant design
  • • Comfortable and refined ride
  • • Strong reliability and longevity
  • • Good parts availability for a classic

Cons:

  • • Many engines are underpowered by modern standards
  • • Fuel economy can be poor on older petrol models
  • • Rust can be an issue if not maintained
  • • Safety features are outdated
  • • Maintenance costs can be higher for specific parts

Specifications:

Specifications are compared to those of the previous generation(W123: October, 1982 - August, 1985).

General:
Brand:Mercedes-Benz
Model:W123
Generation:S123
Modification (Engine):300 TD (80 Hp) Automatic
Start of production:September, 1977
End of production:September, 1979
Powertrain Architecture:Internal Combustion engine
Body type:Station wagon (estate)
Seats:5
Doors:5
Engine:
Power:80 Hp @ 4000 rpm. Same horsepower
Power per litre:26.6 Hp/l [123mm less]
Torque:172 Nm @ 2400 rpm.
Engine Model/Code:OM 617 D 30 / 617.912 More details about the engine OM 617 D 30 / 617.912
Engine displacement:3005
Number of cylinders:5
Engine configuration:Inline
Number of valves per cylinder:2
Fuel injection system:Multi-port manifold injection
Engine aspiration:Naturally aspirated engine
Valvetrain:SOHC
Engine oil capacity:8 l
Coolant:11 l
Engine layout:Front, Longitudinal
Cylinder Bore:91.01 mm
Piston Stroke:92.41 mm
Compression ratio:21.5:1
Performance:
Fuel Type:Diesel
Fuel consumption (economy) - urban:10.4 l/100 km
Fuel consumption (economy) - extra urban:9.4 l/100 km
Acceleration 0 - 100 km/h:21.9 sec
Acceleration 0 - 62 mph:21.9 sec
Maximum speed:143 km/h
Weight-to-power ratio:19.6 kg/Hp, 51 Hp/tonne
Weight-to-torque ratio:9.1 kg/Nm, 109.6 Nm/tonne
Acceleration 0 - 60 mph:20.8 sec
Space:
Kerb Weight:1570
Max. weight:2190
Max load:620
Fuel tank capacity:70 l
Size:
Length:4725 mm [123mm less]
Width:1786 mm [Same width.]
Height:1470 mm [32mm more]
Wheelbase:2795 mm [Same wheelbase.]
Front track:1488 mm
Rear (Back) track:1453 mm
Powertrain:
Drivetrain ArchitectureThe Internal combustion engine (ICE) drives the rear wheels of the vehicle.
Drive wheelRear wheel drive
Number of gears4
Transmission typeAutomatic
Front brakesDisc
Rear brakesDisc
Steering typeCone worm with recirculation balls
Power steeringHydraulic Steering
Tires sizeFront wheel tires: 195/70 R14
Wheel rims sizeFront wheel rims: 6J x 14
Front suspensionDouble wishbone
Rear suspensionTrailing arm

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