A-Premium Mass Air Flow Sensor for BMW 5-Pin — Direct Fit 2.5L/3.0L, ±3% Accuracy

The A-Premium 5-pin Mass Air Flow (MAF) Sensor precisely measures intake air for select BMW 3.0L and 2.5L engines, restoring accurate air-fuel calculations and driveability when the original unit fails.

When a BMW’s engine control module receives incorrect airflow data, drivability, fuel economy and emissions can suffer. This A-Premium replacement is engineered to match the original equipment’s electrical characteristics and mounting pattern for direct bolt-on installation. Its PBT+GF30 plastic and aluminum alloy construction resist heat and vibration, and the five-pin connector replicates the factory interface so you don’t need splicing or adapters.

Which BMW models does this MAF sensor fit?

This sensor covers a range of BMW models that used inline six-cylinder 2.5L and 3.0L gas engines across model years listed by chassis code. Confirm fitment by comparing the reference numbers or your vehicle’s service manual before purchase.

• Fits: 128i (E87/F20) 2008–2013 L6 3.0L
• Fits: 328i/328i xDrive/328xi (E90/F30) 2007–2013 L6 3.0L
• Fits: 528i/528i xDrive/528xi (E60/F10) 2008–2011 L6 3.0L
• Fits: X3 (E83/F25) 2007–2010 L6 2.5L/3.0L, X5 (E70) 2007–2010 L6 3.0L, Z4 (E89) 2010–2011 L6 3.0L

How does the A-Premium MAF sensor match OEM performance?

Engineered to mirror factory electrical and mechanical specifications, this sensor uses the same five-pin termination, two-bolt mounting and compatible measurement range. The unit provides consistent airflow readings within a stated ±3% accuracy to help the ECU make proper fuel-trim decisions.

• Terminal count: 5-pin connector for direct plug-in compatibility
• Mounting: two-bolt bolt-on design, no modification required
• Measuring range: 0–9.25 m³/min to cover idle through higher load conditions
• Accuracy: ±3% typical measurement precision

What are the build features and electrical specifications?

The housing is formed from high-strength PBT reinforced with glass fiber and aluminum alloy components to withstand under-hood heat and vibration. It operates from a standard 12V supply and is designed for the same service environment as the factory part.

• Materials: PBT+GF30 (glass-filled polyester) and aluminum alloy for durability
• Power: maximum supply voltage 12 volts, compatible with factory systems
• Physical: two mounting bolt holes and bolt-on installation
• Housing: sensor body supplied without separate plastic housing cover

When should I replace the MAF sensor and what should I check first?

Replace the MAF sensor when you observe rough idle, reduced fuel economy, hesitation under acceleration or a persistent MAF-related trouble code. Before replacing, scan for diagnostic trouble codes and inspect intake hoses and connectors for leaks or contamination that can mimic sensor failure.

• Scan the ECU for codes (e.g., P0100–P0104 range) before ordering
• Inspect air filter, intake boots and vacuum lines for leaks or blockages
• Consider professional diagnostics to rule out fuel or ignition issues
• A-Premium warranty: one-year unlimited-mileage guarantee for confidence

Who is this for: This A-Premium 5-pin MAF sensor is aimed at BMW owners, independent shops and DIY mechanics who need a direct-replacement airflow sensor for affected 2.5L and 3.0L inline-six gasoline models. It’s suited for anyone looking to restore proper air-fuel metering without modifying wiring or mounting, provided vehicle fitment and reference numbers (for example 13627551638, 5WK97508, 8ET009142-631) match the OEM part.