Engine lubrication system
Type - all engines - combined with gear pump
Minimum oil pressure - 0.5 bar
- At operating temperature, idling speed, 3.0 bar - at 3000 rpm
Cooling system
Type - forced
Coolant Pump - Centrifugal
Cooling capacity (with body heater) - cm. "Refueling tanks"
Coolant - see section 5.1.2.
Radiator cap designation - 120
Valve opening pressure in plug — 1.0 bar
Valve opening at vacuum - 0.1 bar
Thermostat - start opening
- 87°±2°С - 280S and 280 SE
- 75°±3°C - 350 Sen 450 SE
- thermostat valve fully open
- 102°С - 280/280SE
- 92°C - 350SE/450SE