Precision-engineered OEM 0280217800 Air Flow Sensor for BMW e39/e36/2005 X3

High-grade polymer housing with corrosion-resistant metal components ensures durability in extreme engine conditions.

Laser-calibrated sensing element guarantees ±1% accuracy for optimal fuel-air mixture and engine performance.

Direct plug-and-play replacement with factory connectors (13621747156/13621702078/13621733262 cross-compatible).

CNC-machined intake flange creates perfect seal to prevent vacuum leaks common in BMW M54/N52 engines.

Tested under -40°C to 150°C for reliable operation in all climates including desert heat and winter driving.

Exact OEM specifications meet strict BMW TÜV certifications – no ECU reprogramming required.

Ideal for performance tuning, emissions compliance, and resolving common P0171/P0174 fault codes.

100% signal accuracy verified through dyno testing – restores lost horsepower from worn sensors.