Component Description For Coolant Thermostat - Mercedes-Benz OM 471 Introduction Into Service Manual

GF20.10>W>3162H
ENGINE 471.9 in MODEL 963
Location
1 Oil/coolant module
2 Coolant thermostat
The coolant thermostat (2) is located on the
left side of the engine on the oil/coolant
module (1).
Task
The coolant thermostat (2) regulates the
coolant inlet temperature in the engine in a
range between roughly 87 ∞C to 95 ∞C.
Design
The coolant thermostat (2) consists of a housing with integral
sliding ring valve thermostat.
Function
The coolant thermostat (2) regulates the flow of coolant through
the engine radiator and thereby the temperature of the coolant
in the coolant circuit.
The following benefits result from regulating the coolant inlet
temperature in the engine:
f Operating temperature is reached faster
f Emissions reduced
The 3 following different operating conditions can arise
depending on the coolant inlet temperature:
f Bypass mode
f Mixed mode
f Cooler mode
i Introduction of engine OM 471 and exhaust aftertreatment > 09/2011 >

Component description for coolant thermostat

– This printout will not be recorded by the update service. Status: 09 / 2011 –
System components
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