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Mercedes-Benz W123 S123 250 T (140 Hp)
Overall Rating
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 200 Nm of torque, it offers ample pulling power. With a weight of 1510 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 11.9 s). The top speed reaches 185 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.
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.
250 T (140 Hp) Verdict:
Performance Verdict
The 140 hp inline-six with a manual gearbox offers a very smooth, capable, and enjoyable driving experience, with good acceleration for its time.
Fuel Economy
Respectable fuel consumption for a six-cylinder petrol, especially when driven carefully. The manual helps maintain efficiency.
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- • Safety features are outdated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: September, 1978 - November, 1985).
| General: | |
|---|---|
| Brand: | Mercedes-Benz |
| Model: | W123 |
| Generation: | S123 |
| Modification (Engine): | 250 T (140 Hp) |
| Start of production: | September, 1979 |
| End of production: | August, 1982 |
| Powertrain Architecture: | Internal Combustion engine |
| Body type: | Station wagon (estate) |
| Seats: | 5 |
| Doors: | 5 |
| Engine: | |
|---|---|
| Power: | 140 Hp @ 5500 rpm. Same horsepower |
| Power per litre: | 55.4 Hp/l [Same length.] |
| Torque: | 200 Nm @ 3500 rpm. |
| Engine Model/Code: | M 123 V 25 / 123.921 More details about the engine M 123 V 25 / 123.921 |
| Engine displacement: | 2525 |
| Number of cylinders: | 6 |
| Engine configuration: | Inline |
| Number of valves per cylinder: | 2 |
| Fuel injection system: | Carburettor |
| Engine aspiration: | Naturally aspirated engine |
| Valvetrain: | SOHC |
| Engine oil capacity: | 7.5 l |
| Coolant: | 10 l |
| Engine layout: | Front, Longitudinal |
| Cylinder Bore: | 86 mm |
| Piston Stroke: | 72.45 mm |
| Compression ratio: | 9:1 |
| Performance: | |
|---|---|
| Fuel Type: | Petrol (Gasoline) |
| Fuel consumption (economy) - urban: | 14.8 l/100 km |
| Fuel consumption (economy) - extra urban: | 9 l/100 km |
| Acceleration 0 - 100 km/h: | 11.9 sec |
| Acceleration 0 - 62 mph: | 11.9 sec |
| Maximum speed: | 185 km/h |
| Weight-to-power ratio: | 10.8 kg/Hp, 92.7 Hp/tonne |
| Weight-to-torque ratio: | 7.6 kg/Nm, 132.5 Nm/tonne |
| Acceleration 0 - 60 mph: | 11.3 sec |
| Space: | |
|---|---|
| Kerb Weight: | 1510 |
| Max. weight: | 2130 |
| Max load: | 620 |
| Fuel tank capacity: | 70 l |
| Size: | |
|---|---|
| Length: | 4725 mm [Same length.] |
| 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 Architecture | The Internal combustion engine (ICE) drives the rear wheels of the vehicle. |
| Drive wheel | Rear wheel drive |
| Number of gears | 4 |
| Transmission type | Manual |
| Front brakes | Disc |
| Rear brakes | Disc |
| Steering type | Cone worm with recirculation balls |
| Power steering | Hydraulic Steering |
| Tires size | Front wheel tires: 195/70 R14 |
| Wheel rims size | Front wheel rims: 6J x 14 |
| Front suspension | Double wishbone |
| Rear suspension | Trailing arm |
Behind the wheel of the Mercedes-Benz W123. How does it handle on the road?