Description

4B0907659A Air Quality Sensor G238 – Audi Air Conditioning & Climate Control

Keep your Audi’s air conditioning and climate control system working properly with this 4B0907659A G238 Air Quality Sensor. This genuine OE/OEM sensor is designed to monitor air quality entering the vehicle and communicate with the climate control system.

The sensor is genuine OE/OEM, used, and tested, making it a suitable replacement for a faulty or damaged original unit when the part number and connector match.

Product Details

• OEM Part Number: 4B0907659A
• Sensor Designation: G238
• Product Type: Air Quality Sensor
• System: Air Conditioning / Climate Control / HVAC
• Vehicle Brand: Audi
• Model Years: 2001–2018
• Quality: Genuine OE/OEM
• Condition: Used & Tested
• Application: Automatic climate control and air-quality monitoring

Function

The G238 air quality sensor monitors the quality of the outside air entering the vehicle. It provides information to the climate control system, allowing the HVAC system to manage fresh-air and recirculation functions where equipped.

A faulty air quality sensor may cause:

• Climate control air-quality faults
• Recirculation function problems
• Incorrect fresh-air/recirculation operation
• HVAC warning messages
• Stored climate-control fault codes
• Intermittent automatic climate control operation
• Air quality sensor-related diagnostic faults

Fitment & Compatibility

This 4B0907659A G238 air quality sensor is listed for compatible Audi applications from 2001–2018.

Because Audi HVAC systems can vary by model, year, equipment level, and climate-control configuration, please verify the original part number and connector before ordering.

The safest way to confirm compatibility is to match 4B0907659A with the part currently installed in your vehicle.

Condition

Genuine OE/OEM – Used & Tested

The sensor has been tested before sale and may show normal cosmetic signs associated with previous use. Please review the product photos for the exact condition of the item.

Installation

Professional installation is recommended. After installation, a diagnostic scan may be useful to check for HVAC fault codes and confirm that the climate-control system recognizes the sensor correctly.

Worldwide Shipping

Worldwide shipping available from Audi Parts 05.