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Mass air flow sensors (MAF) Masuma, AFS-E423
This spare part fits on cars BMW
3-SERIES (E46)
| Body/Volume | Installation period | Car configuration |
|---|---|---|
| 330xi. M54B30 (306S3). SEDAN | 1999.09-2004.12 | 3.0L GASOLINE M54B30 (306S3) (231 PS / 170 kW) Four-wheel drive (4WD). Left Hand Drive |
| 330i. M54B30 (306S3). SEDAN | 1999.09-2005.02 | 3.0L GASOLINE M54B30 (306S3) (231 PS / 170 kW) Rear-wheel drive. Left Hand Drive |
| 330Ci. M54B30 (306S3). COUPE | 1999.09-2006.05 | 3.0L GASOLINE M54B30 (306S3) (231 PS / 170 kW) Rear-wheel drive. Left Hand Drive |
5-SERIES (E39)
| Body/Volume | Installation period | Car configuration |
|---|---|---|
| 530i. M54B30 (306S3). WAGON | 1999.11-2003.12 | 3.0L GASOLINE M54B30 (306S3) (231 PS / 170 kW) Rear-wheel drive. Left Hand Drive |
| 530i. M54B30 (306S3). SEDAN | 2000.03-2003.07 | 3.0L GASOLINE M54B30 (306S3) (231 PS / 170 kW) Rear-wheel drive. Left Hand Drive |
X5 (E53)
| Body/Volume | Installation period | Car configuration |
|---|---|---|
| X5 3.0i. M54B30 (306S3). SUV | 1999.08-2006.09 | 3.0L GASOLINE M54B30 (306S3) (231 PS / 170 kW) Four-wheel drive (4WD). Left Hand Drive |
| X5 3.0i. M54B30 (306S3). SUV | 1999.08-2006.09 | 3.0L GASOLINE M54B30 (306S3) (231 PS / 170 kW) Four-wheel drive (4WD). Left Hand Drive |
| X5 3.0d. M57D30 (306D1). SUV | 2000.01-2003.09 | 3.0L DIESEL M57D30 (306D1) (184 PS / 135 kW) Four-wheel drive (4WD). Left Hand Drive M57 |
| X5 3.0d. M57D30 (306D2). SUV | 2003.01-2006.09 | 3.0L DIESEL M57D30 (306D2) (218 PS / 160 kW) Four-wheel drive (4WD). Left Hand Drive M57N |
Masuma Mass Air Flow (MAF) sensors are a critical part of the engine’s electronic management system. By accurately measuring the volume of air entering the engine, they allow the ECU to calculate the exact amount of fuel required for an optimal air-fuel mixture. This ensures efficient engine performance, reduces fuel consumption, and helps lower emissions.
Masuma MAF sensors deliver a reliable combination of durability, precision, and OEM-level engineering. Key features include:
- Wire-type sensing element
Faster and more accurate measurements compared to traditional film-type sensors. - Platinum hot wire
More resistant to corrosion and high temperatures than standard tungsten elements, extending service life. - Bypass airflow channel
Minimizes contamination of the sensing element and improves sensor stability. - Glass-coated hot wire
A protective glass layer shields the sensor from dust and deposits, ensuring consistent accuracy even in harsh conditions.
About Masuma
Masuma is a global brand specializing in auto parts, components, and consumables. The company focuses on producing high-wear replacement parts for post-warranty maintenance of Asian and European vehicles.
Masuma’s strategy is to deliver the best balance of reliability and cost, making quality parts accessible to more drivers and service professionals. All products are developed according to Masuma’s own specifications and manufactured under strict quality control by Masuma Auto Spare Parts Co., LTD (Tokyo, Japan) at multiple state-of-the-art factories across East Asia.