M28
Inline-4- 28 II 1.7 L · 1,697 cc
38 PS
28 kW · 38 hp at 3,400 rpm
102 N·m
75 lb·ft at 1,800 rpm
Mercedes-Benz Medium Sedan · Typ 170 H
W28
Rear-engined 170 H — the last of the Heckmotor street cars.
- Production
- 1936–1939
- Built
- 1,507
- Body
- Sedan
- Chassis
- W28
The engine lived behind the passengers — a rear-mounted four-cylinder in a conventional-looking sedan that made the Typ 170 H the last Heckmotor Mercedes-Benz built for ordinary street use in the pre-war era.
Mercedes-Benz developed the W28 as the refined successor to the rear-engined 130 idea: a 1.7-liter side-valve engine driving the rear wheels through a four-speed gearbox, with independent front suspension and a body that read as a normal family car rather than an engineering experiment. The layout freed cabin space and kept mechanical noise aft of the occupants, even as the industry was moving back toward front-engine orthodoxy.
Production ran from 1936 to 1939, and the published archive tables record 1,507 examples on the W28 chassis — a modest but meaningful run that closed the chapter on rear-engined Mercedes passenger cars until very different times.
Every model.
1 distinct series across 1936–1939 — each identified by its chassis and engine numbers from period factory data.
| Model | Model years | Chassis | Engine | Transmission | Total |
|---|---|---|---|---|---|
| Type 170 H | 1936–1939 | 28 | 28 II | 1,507 |
* The published production figure covers every series of that model; the source does not break it down further.
Engines.
The M28 as fitted to the W28.