Mercedes-Benz 300, W189 (Adenauer) (EU)

Coolant capacity & service interval

Mercedes-Benz 300, W189 (Adenauer) (EU) uses coolant with a capacity of 21 liter. The data covers 1 configuration.

The configuration chart below lists fill volumes and service intervals for each engine and trim variant.

TypeSpecifications
300D, W189 (1957-1962)
  • Use: Normal
  • Capacity 21 liter

Additional Notes

  • The Mercedes-Benz 300D W189 cooling system holds 21 liters of coolant, a notably large capacity that reflects the demands of the long-wheelbase limousine body and the relatively large displacement inline-six engine housed within.
  • The 21-liter figure represents a full cooling system fill, meaning the total volume of the entire circuit including the radiator, engine block passages, heater core, and connecting hoses rather than a partial or top-up quantity.
  • The single capacity value listed applies under normal use conditions, covering the 1957-1962 production span of the 300D W189 without variation across that range.

Other Systems