1362 7520 519 Mass Air Flow Sensor for BMW 325i 330i 525i 530i Z4 N52 M54

◆ This mass air flow sensor is a direct replacement for the original BMW unit, designed to measure the volume and density of air entering the engine so the DME can calculate the correct fuel delivery.

◆ The OEM reference number is 1362 7520 519 (13627520519). BMW‘s parts catalog designates this component as “Hot-film air mass meter” .

◆ The sensor is a hot-film type unit, weighing approximately 0.035 kg, engineered to OEM standard dimensions for direct fitment into the intake air duct without modification .

◆ It is primarily designed for BMW models equipped with the N52 3.0L and M54 2.5L/3.0L engines, including the 3 Series E90/E91/E92/E93 (325i, 325xi, 330i, 330xi), 5 Series E60/E61 (525i, 525xi, 530i, 530xi), and Z4 E85 (3.0i, 3.0si), covering model years from approximately 2003 through 2013 .

◆ This product is a mass air flow sensor manufactured to meet original quality standards for measurement accuracy, fit, and durability.

◆ Part Number: 1362 7520 519 / 13627520519

◆ Component Type: Mass Air Flow Sensor / Hot-Film Air Mass Meter

◆ Vehicle Make: BMW

◆ Engine Compatibility: N52 (3.0L), M54 (2.5L/3.0L)

◆ Sensor Type: Hot-film

◆ Weight: Approx. 0.035 kg

◆ Placement: Intake air duct, between air filter housing and throttle body

◆ Note: Some BMW catalog listings indicate this part has been discontinued (已终止)

◆ OEM Standard Fit: Manufactured to exact original specifications for a direct, hassle-free replacement.

◆ Accurate Air Measurement: Hot-film sensing element provides precise intake air mass data for optimal air-fuel ratio and fuel economy .

◆ Durable Construction: Built with materials resistant to heat, oil contamination, and engine bay conditions.

◆ Cost-Effective Solution: An ideal alternative to costly dealership parts without compromising on fit or function.

◆ BMW 3 Series E90/E91/E92/E93: 325i, 325xi, 330i, 330xi (2006–2013, N52)

◆ BMW 3 Series E90: 323i (2006–2008)

◆ BMW 5 Series E60/E61: 525i, 525xi (2004–2007, M54/N52)

◆ BMW 5 Series E60/E61: 530i, 530xi (2004–2007, M54/N52)

◆ BMW Z4 E85: 3.0i (2003–2005), 3.0si (2006–2008)

◆ Note: Fitment varies by engine code and production year. Verify against your vehicle’s original part number and engine configuration before ordering.

Q1: Is this a genuine BMW part?

A: The 13627520519 reference is the original equipment part number. Both genuine BMW and aftermarket equivalents are available that match the original fit and function.

Q2: How do I confirm if it fits my vehicle?

A: Check your vehicle‘s existing mass air flow sensor. If it is stamped with 13627520519, this replacement will fit. Also confirm your engine is the N52 or M54 variant and matches one of the models listed above. Note that BMW catalog data indicates this part has been discontinued, so verify availability before ordering .

Q3: What are the symptoms of a failing mass air flow sensor?

A: Common signs include a check engine light with MAF-related fault codes, rough idle or stalling, poor fuel economy, and reduced engine performance. A diagnostic scan tool can confirm the fault before replacement. Disconnecting the sensor temporarily and observing whether engine behavior improves is a common diagnostic step .