E 320 BLUETEC (211.022) V6-3.0L DSL Turbo (642.920) (2007)
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Coolant Temperature Sensor/Switch (For Computer): Description and Operation
GF07.04-P-6040P Coolant Temperature Sensor, Component Description
Location
The coolant temperature sensor is located on the left of the cylinder head under the rail.
Task
The coolant temperature sensor detects the coolant temperature and sends this value to the CDI control unit (N3/9).
Design
The coolant temperature sensor possesses an integral measuring resistor with a negative temperature coefficient (NTC).
Function
The NTC measuring resistor alters its electrical resistance in line with the coolant temperature. Electrical resistance decreases as temperature increases.
