Mercedes-Benz · W28 · 1936-1940

W28 Guides

Seek documented service history and evidence of regular maintenance, as diesel engines from this era benefit from consistent oil changes and fuel quality monitoring. Verify authenticity through factory records and examine the engine block for original casting numbers to confirm genuine Type 260D specification.

IssueSeverityNotes
Fuel injection pump wearHighOriginal Bosch injectors require careful maintenance and proper fuel quality
Cylinder head gasket degradationMediumExtended operation without service intervals causes thermal stress
Glow plug functionalityMediumCold-start reliability depends on functional glow plug systems