SLK 230 (170.449) L4-2.3L SC (111.983) (2001)
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
Coolant Temperature Sensor, Function
Coolant Temperature Sensor, Function