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This manual provides essential information for the installation, function, and maintenance of your Subaru Genuine Air Cleaner Filter, part number 16546AA180. This filter is designed to ensure optimal engine performance and longevity by effectively filtering incoming air, preventing harmful contaminants from entering the engine's combustion chambers. It is an original equipment manufacturer (OEM) part, ensuring precise fitment and performance for compatible Subaru models, specifically the 2018-2021 WRX STi.
Ürün Bittiview

Figure 1: Subaru Genuine Air Cleaner Filter (Part No. 16546AA180) in its packaging.
This image shows the Subaru 16546AA180 air cleaner filter, still in its original packaging. The filter itself is visible, featuring its pleated paper element and black rubber frame. The packaging box below it displays the Subaru Genuine Parts label with the part number 16546AA180 clearly printed, confirming its authenticity and model compatibility.
Kurulum ve Yükleme
Replacing your engine's air cleaner filter is a routine maintenance task that can be performed with basic tools. Always ensure the engine is off and cool before beginning.
- Locate the Air Box: The air cleaner filter is housed within the air box, typically a black plastic housing located under the hood, connected to the engine's intake system.
- Open the Air Box: Depending on your vehicle model (2018-2021 WRX STi), the air box may be secured by clips, screws, or a combination of both. Unfasten these to open the air box cover.
- Eski Filtreyi Kaldırın: Carefully lift out the old, dirty air filter. Note its orientation to ensure the new filter is installed correctly.
- Clean the Air Box: Before installing the new filter, inspect the inside of the air box for any debris, leaves, or dust. Clean it thoroughly with a cloth or vacuum if necessary.
- Yeni filtreyi takın: Place the new Subaru Genuine Air Cleaner Filter (16546AA180) into the air box, ensuring it sits flush and correctly oriented within the housing. The rubber gasket should create a tight seal.
- Secure the Air Box: Close the air box cover and fasten all clips or screws securely. Ensure there are no gaps that could allow unfiltered air to enter the engine.
- Doğrulamak: Double-check all connections and ensure the air box is properly sealed before starting the engine.
For detailed visual instructions, consult your vehicle's specific service manual or a certified Subaru technician.
Çalışma Prensibi
The Subaru Genuine Air Cleaner Filter functions as a critical component of your vehicle's engine intake system. Its primary role is to filter airborne particles such as dust, pollen, dirt, and debris before they enter the engine's combustion chambers. A clean air filter ensures a consistent supply of clean air, which is essential for efficient fuel combustion, optimal engine power, and reduced wear on internal engine components. By maintaining a clean air supply, the filter helps to prevent damage to sensitive parts like the mass airflow sensor and cylinder walls, contributing to the overall health and longevity of the engine.
Bakım
Regular inspection and replacement of the air cleaner filter are crucial for maintaining engine health and performance.
- Muayene Sıklığı: It is recommended to inspect your air filter every 12,000 to 15,000 miles or every 12 months, whichever comes first. More frequent inspection may be necessary if you drive in dusty or polluted environments.
- Değiştirme Programı: Replace the air filter every 30,000 miles or every 3 years, or sooner if it appears excessively dirty or clogged during inspection. A clogged filter can significantly reduce engine performance and fuel efficiency.
- Görsel kontrol: Hold the filter up to a light source. If you cannot see light through the filter media, it is likely clogged and needs replacement.
Sorun giderme
A dirty or improperly installed air filter can lead to several issues:
- Azalmış Motor Performansı: A clogged filter restricts airflow, leading to decreased horsepower and acceleration.
- Decreased Fuel Efficiency: The engine may consume more fuel to compensate for insufficient airflow.
- Motor Arıza Lambası: In some cases, a severely restricted air filter can trigger the check engine light due to issues with the mass airflow sensor.
- Alışılmadık Motor Sesleri: A whistling or sucking sound might indicate an improperly sealed air box or filter.
If you experience any of these symptoms, inspect your air filter immediately. Ensure it is clean, properly seated, and the air box is securely closed.
Özellikler
| Bağlanmak | Detay |
|---|---|
| Marka | Subaru |
| OEM Parça Numarası | 16546AA180 |
| Üretici | Subaru |
| Ürün Türü | Engine Air Cleaner Filter |
| Uyumluluk | 2018-2021 Subaru WRX STi (and potentially other models, verify with vehicle's manual) |
Garanti Bilgileri
As an Original Equipment Manufacturer (OEM) part, the Subaru Genuine Air Cleaner Filter 16546AA180 is typically covered by Subaru's standard parts warranty. Warranty terms and conditions may vary based on your region and the specific purchase agreement. Please retain your proof of purchase. For detailed warranty information, refer to your vehicle's owner's manual or contact an authorized Subaru dealership or Subaru Customer Service directly.
Destek
For technical assistance, installation questions, or to report any issues with your Subaru Genuine Air Cleaner Filter, please contact your local authorized Subaru dealership or visit the official Subaru website for customer support contact information. When contacting support, please have your vehicle's VIN and the part number (16546AA180) readily available.
You can find more information and locate a dealer at: www.subaru.com





