Standard Ignition AX-311 A/C Evaporator Temperature Sensor

Overview of Standard Ignition A/C Evaporator Temperature Sensor AX-311

The Standard Ignition A/C Evaporator Temperature Sensor AX-311 is designed specifically for Audi A8 Quattro and S8 models. This sensor plays a critical role in monitoring the evaporator temperature to ensure optimal HVAC system performance.

• Terminal Quantity: 2
• Connector Gender: Female
• Terminal Gender: Male
• Connector Quantity: 1
• Connector Shape: Rectangular
• Connector Type: Plug in
• Terminal Type: Blade
• Contents: Sensor only

Detailed Product Description

The AX-311 A/C Evaporator Temperature Sensor from Standard Ignition features a two-terminal design with male blade terminals and a female rectangular plug-in connector. This configuration ensures a secure and reliable electrical connection within the HVAC system of compatible Audi vehicles. The sensor is engineered to accurately detect evaporator temperature, which helps regulate the air conditioning system to prevent freezing and maintain cabin comfort. Its plug-in connector simplifies installation and replacement, reducing service time.

Compatible Vehicles and Applications

This sensor is compatible with select Audi models, including the Audi A8 Quattro and Audi S8. It is intended for use in the HVAC system to monitor evaporator temperature and support proper air conditioning function.

• Prevents evaporator freeze-up by monitoring temperature
• Helps maintain consistent cabin climate control
• Supports efficient A/C system operation
• Detects temperature fluctuations to optimize compressor cycling
• Replaces faulty or damaged evaporator temperature sensors

Installation Notes and Tips

When installing the Standard Ignition AX-311 sensor, ensure the connector is fully seated to avoid intermittent electrical issues. The rectangular plug-in connector with female gender mates with the vehicle’s male terminal harness. Verify the terminal blade orientation matches the original sensor to maintain proper electrical contact. It is recommended to disconnect the battery before installation to prevent electrical shorts. Follow vehicle-specific service manual instructions for sensor location and removal.

Quality Assurance and Warranty

Standard Ignition parts are manufactured to meet or exceed OEM specifications for fit, form, and function. The AX-311 sensor undergoes quality control testing to ensure reliable performance in Audi A8 Quattro and S8 HVAC systems. This part is backed by Standard Ignition’s limited warranty, providing coverage against defects in material and workmanship under normal use.