Mercedes Benz 4DSEDAN 5-220D-123D/2800
Built: 1978 · Series: 4DSEDAN
More machines from model year 1978
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Mercedes-Benz 300 D of 1981: the four-door diesel saloon of the W123 range with a five-cylinder diesel engine, 3,000 cm³ displacement, 1,965 kg gross weight and 1,460 kg kerb weight
Mercedes-Benz is the German car maker from Stuttgart whose W123 range was built from the second half of the 1970s into the mid-1980s, with the four-door saloon as its base form, complemented by a coupé and an estate. The 300 D was the range's top diesel and carried the first five-cylinder diesel engine ever fitted to a production car – an engine that made the W123 range the byword for the indestructible diesel company car.
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The vehicle recorded here from 1981 carries this five-cylinder diesel engine of 3,000 cm³. With a gross weight of 1,965 kg and a kerb weight of 1,460 kg, a payload of about 505 kg remains for passengers and luggage, a figure typical for a four-door saloon of this class. The width of 1,790 mm matches the mid-size class of its day.
The 300 D and the whole W123 range gained a worldwide reputation for longevity: in many countries, particularly the Middle East and Africa, such vehicles still run as taxis today with mileages of several hundred thousand kilometres, because the rugged five-cylinder diesel keeps running reliably even under poor maintenance conditions.
When buying such a vehicle, what counts is corrosion at the known weak points – wings, sills, boot floor –, the condition of the injection pump and glow plugs, the tightness of the crankcase breather, and, on the automatic version, the condition of the four-speed torque-converter gearbox.
Sources: SpecCodex-Register: Kennwerte des Modells 4DSEDAN 5-300 D-Automatic-123D/2800
Technical data
Engine
| Displacement | 2,400 cm³correct |
|---|
Dimensions and weights
| Width | 1,790 mmcorrect |
|---|---|
| Unladen weight | 1,525 kgcorrect |
Frequently asked questions
How much does the Mercedes Benz 4DSEDAN 5-220D-123D/2800 weigh?
The unladen weight is 1,525 kg.
What engine does the Mercedes Benz 4DSEDAN 5-220D-123D/2800 have?
2,400 cm³ displacement.
When was the Mercedes Benz 4DSEDAN 5-220D-123D/2800 built?
Production years: 1978.
What to check before buying
- Check the hour meter against the service records — a replaced instrument is the most common gap.
- Compare the data plate and chassis number with the papers.
- Check the weights in the papers against the figures here — attachments change them.
- Ask about parts availability for this build year — the running costs hang on it.
A general list for this type of machine — no substitute for an inspection or an appraiser.
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This page carries 4 individual figures for this model. They come from 2 recorded sources; every figure can be traced there. What we cannot document is not here — we leave gaps open rather than estimate them.
The technical data on this page comes from official vehicle registration records (RDW/Traficom), not from the manufacturer.
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Sources: Traficom — Finnish vehicle register (retrieved August 2026) · How we check the data
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