Mercedes-Benz Executive Sedan · W123

W123

The diesel that defined a generation.

Production
1975–1985
Built
2,389,140
Body
Sedan
Chassis
W123
Mercedes-Benz Executive Sedan (W123)

The W123 is the Mercedes-Benz that owners still measure everything against — an executive saloon, estate, and coupé range whose build quality and durability became the firm's global reputation in the 1970s and 1980s.

From taxi-spec 200 D and 240 D diesels to fuel-injected 230 E and 280 E petrol models, the W123 covered every need with the same over-engineered chassis, independent suspension, and interior fit and finish that made deferred replacement a way of life. Estate S123 and coupé C123 variants extended the architecture without compromising the standard.

Between 1975 and 1985, 2,389,140 saloons and long-wheelbase limousines were built.

W123 interior
Cabin details of the W123, as preserved in period photography.

Every model.

11 model designations across 1975–1985 — engines, chassis codes and production figures for the W123.

MalliMallivuodetValmistettuAlustaMoottoriVaihteistoYhteensä
200 D1976–198502.1976–04.1985123.120615.940722.116378,138
220 D1976–197902.1976–03.1979123.126615.941722.11656,736
240 D1976–198502.1976–11.1985123.123616.912722.117448,986
240 D LWB1978–198509.1977–11.1985123.125616.912722.1173,841
300 D1976–198502.1976–11.1985123.130617.912722.118324,718
300 D LWB1978–198509.1977–11.1985123.132617.912722.1184,679
300 D Turbodiesel1982–198508.1981–08.1985123.133617.95275,261
2001976–198002.1976–08.1980123.020115.938722.115158,772
2001980–198508.1980–11.1985123.220102.920722.121217,315
2301976–198002.1976–08.1980123.023115.954722.119195,920
230 E1980–198507.1980–11.1985123.223102.980722.122245,588
2501976–198504.1976–12.1985123.026123.920722.113114,796
250 LWB1978–198509.1977–12.1985123.028123.920722.1135,180
2801976–19811975–1981123.030110.923722.11133,206
280 E1976–19851975–1985123.033110.984 · 110.988722.112126,004

* Julkaistu tuotantoluku kattaa kyseisen mallin kaikki sarjat; lähde ei erittele sitä tarkemmin.

W123 side profile
Studio profile of the W123 — the proportions that defined this chassis.

Year by year.

The engine, safety and facelift changes that distinguish the three W123 production series.

  1. 1976
    • The W123 saloon entered the market with petrol engines from 2.0 to 2.8 liters and diesels from 2.0 to 3.0 liters.
    • A safety steering column, protected fuel tank and ribbed dirt-shedding taillights carried forward Mercedes-Benz safety priorities.
  2. 1977
    • Long-wheelbase saloons joined the factory range.
  3. 1978
    • The 280 E rose to 185 hp in April.
    • The 240 D rose to 72 hp in August.
  4. 1979
    • The 200 D gained 5 hp in February.
    • The 220 D left the range.
    • The 300 D and 250 received output increases in September.
  5. 1980
    • The new M102-powered 200 replaced the earlier M115 version.
    • The fuel-injected M102-powered 230 E replaced the carbureted 230.
    • Bosch anti-lock brakes became optional in August.
  6. 1981
    • The 300 D Turbodiesel joined the North American range for model year 1982.
  7. 1982
    • A driver airbag became optional in January.
    • The September facelift made rectangular wide-band headlamps standard across the range.
    • Power-assisted steering became standard.
    • Black windscreen air-inlet grilles and revised A-pillar trim provided exterior dating cues.
  8. 1985
    • Saloon production ended after the W124 had entered production.
W123 rear three-quarter view
Rear three-quarter view of the W123.

Engines.

Six engine families — the OM615 through OM617 diesels and the M102 through M115 petrols — as fitted to the W123.

M110

Inline-6
  • 110.923 2.7 L · 2,746 cc

    156 PS

    115 kW · 154 hv / 5,500 r/min

    223 N·m

    164 lb·ft / 4,000 r/min

  • 110.984 2.7 L · 2,746 cc

    185 PS

    136 kW · 182 hv / 5,800 r/min

    240 N·m

    177 lb·ft / 4,500 r/min

OM615

Inline-4 diesel
  • 615.940 2.0 L · 1,988 cc

    55 PS

    40 kW · 54 hv / 4,200 r/min

    113 N·m

    83 lb·ft / 2,400 r/min

  • 615.941 2.2 L · 2,197 cc

    60 PS

    44 kW · 59 hv / 4,200 r/min

    126 N·m

    93 lb·ft / 2,400 r/min

OM616

Inline-4 diesel
  • 616.912 2.4 L · 2,404 cc

    65 PS

    48 kW · 64 hv / 4,200 r/min

    137 N·m

    101 lb·ft / 2,400 r/min

OM617

Inline-5 diesel
  • 617.912 3.0 L · 3,005 cc

    80 PS

    59 kW · 79 hv / 4,000 r/min

    172 N·m

    127 lb·ft / 2,400 r/min

  • 617.952 3.0 L · 2,998 cc

    121 PS

    89 kW · 119 hv / 4,350 r/min

    230 N·m

    170 lb·ft / 2,400 r/min

M115

Inline-4
  • 115.938 2.0 L · 1,988 cc

    94 PS

    69 kW · 93 hv / 4,800 r/min

    158 N·m

    117 lb·ft / 3,000 r/min

  • 115.954 2.3 L · 2,307 cc

    109 PS

    80 kW · 108 hv / 4,800 r/min

    186 N·m

    137 lb·ft / 3,000 r/min

M102

Inline-4
  • 102.920 2.0 L · 1,997 cc

    109 PS

    80 kW · 108 hv / 5,200 r/min

    170 N·m

    125 lb·ft / 3,000 r/min

  • 102.980 2.3 L · 2,299 cc

    136 PS

    100 kW · 134 hv / 5,100 r/min

    205 N·m

    151 lb·ft / 3,500 r/min