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Home >> Mercedes Benz >> 2002 >> SLK 230 (170.449) L4-2.3L SC (111.983) >> Repair and Diagnosis >> Powertrain Management >> Computers and Control Systems >> Coolant Temperature Sensor/Switch (For Computer) >> Description and Operation >> Coolant Temperature Sensor, Location/Task/Design/Function >> Coolant Temperature Sensor, Design
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Coolant Temperature Sensor, Design




Coolant Temperature Sensor, Design




Illustration shows 2-pin plug connection
B11 Coolant temperature sensor




Illustration shows 4-pin plug connection
B11/4 Coolant temperature sensor (further designations e.g. B11/3)

Metal housing with NTC resistor. 2-pin plug connection
Contact assignment at connector:
Contacts 1 and 2 engine control module
Metal housing with two NTC resistors. 4-pin plug connection Contact assignment at connector:
Contacts 1 and 2 engine control module
Contact 3 and 4 air conditioning/ automatic air conditioning
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