Genuine Ford Fiesta 2014-2018 A/C Evaporator Temperature Sensor D6B119C734AA

Genuine Ford Fiesta 2014-2018 A/C Evaporator Temperature Sensor D6B119C734AA is an important part of the air conditioning system, responsible for monitoring the temperature of the evaporator and sending signals to the A/C control unit to adjust compressor operation. Thanks to this, the system always maintains optimal cooling temperature, prevents evaporator icing, and ensures efficient cooling performance in all operating conditions.

On the 2014-2018 Ford Fiesta, the evaporator temperature sensor works in sync with the A/C compressor, condenser, evaporator, blower fan, and HVAC control unit. When the evaporator temperature drops too low, the sensor sends a signal to temporarily shut off or adjust compressor output, preventing ice buildup on the evaporator, helping keep cold airflow stable and extending the life of the entire air conditioning system.

The genuine Ford sensor is manufactured with a highly sensitive sensing element, accurate temperature measurement, and fast response. The sensor housing is made from heat-resistant material with good moisture and vibration resistance, ensuring stable operation in the high-humidity environment inside the HVAC assembly.

After a period of use, the sensor may develop signal drift, circuit failure, or broken wiring, causing the air conditioning to cool inconsistently, sometimes cold and sometimes not, evaporator icing, or abnormal compressor operation. If not replaced in time, cooling efficiency will decrease and may affect the service life of the A/C compressor.

The genuine Ford product with part number D6B119C734AA is made to original standards, ensuring high accuracy, long-lasting durability, and fully compatible installation on the 2014-2018 Ford Fiesta.

Product Information

• Product name: A/C Evaporator Temperature Sensor
• Part number: D6B119C734AA/ D6BZ19C734A
• Brand: Genuine Ford
• Vehicle line: Ford Fiesta
• Model year: 2014-2018
• Installation location: On the A/C evaporator
• System: Air conditioning
• Condition: New

Functions and Role

• Monitors evaporator temperature
• Sends signals to control A/C compressor operation
• Prevents evaporator icing
• Maintains stable cooling performance
• Protects the compressor and other A/C system components

Key Advantages

• High-quality genuine Ford part
• High sensitivity and accuracy
• Fast signal response
• Good moisture resistance, heat resistance, and vibration resistance
• Precise fit and fully compatible with the original system

Signs It Needs Inspection or Replacement

• Air conditioning cools intermittently
• Evaporator icing
• Air conditioning is not cold enough even though refrigerant is within specification
• Abnormal compressor cycling
• Diagnostic scanner shows an evaporator temperature sensor error

👉 The evaporator temperature sensor is an important component that helps the air conditioning system operate stably and prevents evaporator icing. Using genuine Ford part D6B119C734AA helps ensure optimal cooling performance, extends compressor life, and maintains comfort in the cabin.

Replacement Recommendations

• Replace with the correct D6B119C734AA part for the vehicle and A/C system.
• Check the connector, wiring, and A/C control unit at the same time.
• Clean the evaporator when replacing the sensor to improve cooling efficiency.
• Check refrigerant level and system pressure after repairs.
• Use genuine Ford parts whenever possible to ensure accuracy, durability, and long-term stable operation.