Engine Coolant Temperature Sensor

The engine coolant temperature (NTC) input to the control module is used to provide enrichment for cold starts and cold engine running conditions. The sensor is located near the thermostat housing.

The oil temperature sensor input is used as a replacement value in the event of a failure with the coolant temperature sensor input.

Fig 1: Identifying Engine Coolant Temperature Sensor (Arrow)

Courtesy of BMW OF NORTH AMERICA, INC.

Fig 2: Identifying Oil Temperature/Level Sensor

Courtesy of BMW OF NORTH AMERICA, INC.