Mercedes-Benz Large Sedan · Typ 260 D

W138

The world’s first series-production diesel passenger car.

Production
1936–1940
Built
1,967
Body
Sedan
Chassis
W138
Mercedes-Benz Large Sedan (W138)

The world's first series-production diesel passenger car did not arrive with fanfare from a startup — it came from Mercedes-Benz in 1936, as the Typ 260 D, and it changed what motorists thought a saloon could burn.

The W138 paired the OM 138 diesel engine with the established Mercedes-Benz saloon architecture: a 2.6-liter compression-ignition four-cylinder, heavier but far thriftier than any petrol equivalent of the day. Taxi fleets and long-distance drivers were the natural audience; Mercedes-Benz had solved the diesel passenger car not as a laboratory curiosity but as a car you could buy from a showroom.

1,967 were built on the W138 chassis between 1936 and 1940. The Typ 260 D established a diesel tradition at Mercedes-Benz that would outlast the pre-war company itself.

W138 interior
Cabin details of the W138, as preserved in period photography.

Every model.

2 distinct series across 1936–1940 — each identified by its chassis and engine numbers from period factory data.

ModèleMillésimesChâssisMoteurBoîteTotal
Type 260 D1936–1937138138inclus ci-dessus
Type 260 D1937–19401381381,967

* Le chiffre de production publié couvre toutes les séries de ce modèle ; la source ne le détaille pas davantage.

W138 side profile
Studio profile of the W138 — the proportions that defined this chassis.
W138 rear three-quarter view
Rear three-quarter view of the W138.

Engines.

The OM138 as fitted to the W138.

OM138

Inline-4
  • 138 2.5 L · 2,545 cc

    46 PS

    34 kW · 46 hp à 3,000 tr/min