This sensor basically measures the amount of air entering your engine. It doesn’t just guess, it figures out how much air is coming in, not just that air is present. It does this using a tiny heated wire – that’s the “hot – film” part. As air flows past it, the wire cools down. The sensor precisely measures how much cooling occurs and translates that into a mass airflow reading. It sends that reading to the engine’s computer, which then uses it to figure out how much fuel to inject. Think of it as one of the key pieces in keeping your engine running smoothly and efficiently. It’s upstream of the air filter, so it's one of the first things the engine "sees" when it comes to air intake. That data from this sensor is crucial for fuel mixture, ignition timing, and overall engine performance. Without an accurate reading, the engine can’t run its best. It's a critical piece of the puzzle, working with other sensors like the oxygen sensor to keep everything balanced. If this sensor fails or gets dirty, it can cause a whole range of problems. You’ll likely notice a drop in fuel economy – the engine might run rich, meaning it’s using too much fuel. You might also see a loss of power, rough idling, or even the check engine light coming on. It acts like a shield, protecting the engine from running incorrectly. A bad reading can eventually damage other parts, like your catalytic converter. You can find a replacement on sites like Fixparts Online if you need one, and honestly, replacing it is often a pretty straightforward repair that can save you money and headaches down the road. You’ll notice if it’s failing, usually through a noticeable change in how the car drives. Get more value: Hot-Film Mass Air Flow Sensor (MPN 0281002900) is protected by a 12-month warranty!

About Bosch

Bosch is a global leader in automotive technology from Germany, celebrated for its innovative products and high-quality components. Based in Germany, Bosch drives advancements in vehicle safety and efficiency worldwide.

Why Choose Bosch?

• Bosch parts are known for being reliable and lasting a long time, which can save you money on repairs in the future. • They’re a leading supplier to car manufacturers, so you’re getting the same quality parts used in many new vehicles. • Bosch invests a lot in research and development, meaning their parts often have the latest technology for better performance. • You can find Bosch parts for a wide range of vehicles, from older models to the newest cars and trucks. FixParts Online – Your Trusted Source for Quality Bosch Auto Parts.