BMW vehicles often have a sensor located in the vicinity of the cabin air filter. It’s opposite the AUC (Automatic Recirculation Control) sensor. You are wondering what it does and how it works with your car’s systems. Learning about this sensor can give you a peek into your BMW’s advanced tech for climate control and air quality.
The sensor opposite the AUC sensor is for air quality. It’s key in keeping your BMW’s cabin air clean. It’s placed near the cabin filter to catch pollutants like carbon monoxide and nitrogen oxides.
BMW was a leader in using air quality sensors since 1989. The metal oxide sensors in the AUC system can spot gases at low levels. This lets your BMW adjust air flow to keep the air quality and comfort just right. This sensor works with the climate control to make sure you breathe fresh air, even in busy cities.
Location And Purpose Of BMW AUC Sensor System
The BMW AUC (Automatic Recirculation Control) sensor is key to keeping the air in the car clean. It’s placed near the cabin filter, close to the windshield. Its main job is to watch the air quality and turn on air recirculation when it gets too dirty.
Function In Air Quality Control
The AUC sensor works with the car’s climate control system. It makes changes in real-time to keep the air inside clean. If it finds too many pollutants, it tells the system to use recirculation mode. This keeps dirty outside air out and keeps the car’s air fresh.
Relationship To Climate Control System
The BMW AUC sensor and the climate control system work together for a better driving experience. It watches the air quality and adjusts the recirculation mode as needed. This helps keep the temperature, humidity, and air purity just right, making the car a more comfortable place for everyone.
| Feature | Description |
|---|---|
| Sensor Location | Near the cabin filter components, close to the windshield |
| Primary Function | Monitor air quality and automatically activate air recirculation when pollutant levels exceed a certain threshold |
| Integration with Climate Control | Seamlessly integrated with the vehicle’s climate control system to maintain optimal air quality |
“The BMW AUC sensor is a critical component in the vehicle’s air quality management system, ensuring a comfortable and healthy driving environment for the occupants.”
BMW Air Quality Sensor Specifications And Part Numbers
The air quality (AUC) sensor is key for keeping your BMW’s air and climate control systems in top shape. It watches over the cabin air and tells the climate control what to do. Knowing the sensor’s specs and part numbers is crucial for keeping your BMW’s air quality perfect.
The BMW AUC sensor has part number P/N: 64119289142. This number is the same for many BMW models, like the i3 and 2 series. You can find this part number in the RealOEM catalog under diagId=64_1947. This makes it simple to find and buy the right replacement part.
| BMW Model | AUC Sensor Part Number |
|---|---|
| BMW i3 | 64119289142 |
| BMW 2 Series | 64119289142 |
| BMW 3 Series | 64119289142 |
| BMW 5 Series | 64119289142 |
| BMW X3 | 64119289142 |
Knowing the specific part numbers for the BMW AUC sensor makes finding the right replacement easy. This info, along with knowing where the sensor is and what it does, helps keep your BMW’s air and climate control systems working great.
The AUC sensor is just one of many sensors that keep your BMW running smoothly. Learning about bmw fault codes and bmw diagnostic tools is also very helpful. It helps you spot and fix any problems with your BMW’s air quality or climate control system.
Common Signs Of AUC Sensor Malfunction
When the Automatic Recirculation (AUC) sensor in your BMW vehicle starts to malfunction, it can trigger a range of issues. These problems impact your car’s climate control system. By understanding the common signs of AUC sensor problems, you can quickly identify and address any underlying issues before they escalate.
Error Code Indicators
One of the first signs of an AUC sensor malfunction is the appearance of persistent error codes. These codes can be detected using diagnostic tools like ISTA-D. They provide valuable insight into the specific nature of the problem. Paying attention to these error codes can help you pinpoint the issue and take the necessary steps to resolve it.
Climate Control Performance Issues
The AUC sensor plays a crucial role in the climate control system. Its malfunction can lead to noticeable performance issues. For instance, you may notice the inability to activate automatic recirculation mode when exposed to strong pollutants, such as diesel fumes. This can compromise the overall air quality within your vehicle, leading to a less comfortable driving experience.
Automatic Recirculation Problems
The AUC sensor is responsible for monitoring the air quality and triggering the automatic recirculation mode when necessary. If the sensor is malfunctioning, you may experience issues with the automatic recirculation function. This can result in inconsistent air quality and decreased efficiency in the climate control system.
By being aware of these common signs, you can stay vigilant and proactively address any AUC sensor issues in your BMW vehicle. Addressing these problems promptly can help maintain optimal climate control performance. It ensures a comfortable driving experience.
Replacing The BMW AUC Sensor Components
Keeping your BMW’s air quality control (AUC) sensor in good shape is key. It ensures your car’s climate system works well. Replacing this sensor is easy and can be done in about 5 minutes with the right tools.
First, find the AUC sensor near the cabin air filter housing. It’s behind the plastic grille near the windshield’s base. Use a hook tool to unclip it and then pull it forward to remove it.
- Disconnect the electrical connector from the AUC sensor.
- Unclip the sensor from its mounting using a hook tool.
- Carefully pull the sensor towards the front of the vehicle to remove it.
- Slide the new bmw engine sensors into place, ensuring it clicks securely into the mounting.
- Reconnect the electrical connector to the new sensor.
After installing the new bmw sensor diagnostics, put back the plastic grille and other removed parts. Be gentle with the sensor to avoid damage. Once everything is back, your BMW’s climate control should work better, offering better air quality and comfort.
“Replacing the AUC sensor is a straightforward task that can have a significant impact on the performance of your BMW’s climate control system.”
What Is The Sensor Opposite AUC Sensor BMW
BMW cars have a sensor called the AUC (Automatic Recirculation) sensor. They also have another sensor that works with the engine and climate control. This sensor is located opposite the AUC sensor and checks many things to keep the car running well and comfortable.
Physical Characteristics And Location
The sensor is near the cabin air filter, close to the brake fluid reservoir. This spot helps it measure the temperature and airflow in the car’s ductwork. It sends this info to the BMW engine management system and climate control unit.
Integration With Vehicle Systems
This sensor works with the BMW engine management system, or ECU. It sends important data like air temperature and airflow to the ECU. The ECU then uses this info to control the engine, fuel, and emissions. It also helps the climate control system keep the cabin at the right temperature and air quality.
Operational Parameters
The sensor checks many things, like air temperature, airflow, and pollutants. It gives the car’s systems the info they need. This helps the car decide when to use features like automatic air recirculation. It makes sure the car is comfortable and healthy to drive, especially in areas with bad air.
frequently asked questions
What is the sensor opposite the AUC sensor in BMW vehicles?
The sensor opposite the AUC sensor in BMW vehicles is an air quality sensor. It is found near the cabin filter, close to the windshield on the opposite side of the brake fluid reservoir.
What is the function of the BMW AUC sensor?
The BMW AUC sensor is near the cabin filter, close to the windshield. It checks the air quality and turns on air recirculation when pollutant levels get too high. It works with the climate control system to keep the air inside the vehicle clean.
What are the part numbers for the BMW air quality sensor?
The BMW air quality sensor has a part number like P/N: 64119289142. This number is the same for many BMW models, like the i3 and 2 series. You can find it in the RealOEM catalog under diagId=64_1947.
What are the common signs of AUC sensor malfunction?
A malfunctioning AUC sensor can cause error codes to show up on diagnostic tools like ISTA-D. You might have trouble with the climate control, like not being able to turn on automatic recirculation when there are strong pollutants. You might not notice a big change in air quality when the sensor is not working right.
How do you replace the BMW AUC sensor?
To replace the AUC sensor, you need to remove the storage box and plastic plugs near the windshield. You’ll need a hook tool to unclip the sensor through the plastic grill. Pull the sensor towards the front of the car to remove it. Putting in the new sensor takes some patience. The whole job should take about 5 minutes with the right tools and a bit of practice.
What are the characteristics of the sensor opposite the AUC sensor in BMW vehicles?
The sensor opposite the AUC sensor is near the cabin filter, opposite the brake fluid reservoir. It works with the climate control and engine management systems. It detects pollutants and turns on air recirculation when needed. But, it doesn’t tell us exactly what pollutants it detects or when it turns on air recirculation.
