BMW Accelerator Pedal Sensor - Genuine BMW 35406889821

Product Information

BMW Pedals diagram for M3, i4, M2

An accelerator pedal sensor (also called an APP sensor) is an electronic device that monitors the position of the accelerator pedal and sends this data to the engine control module (ECM). Instead of using a mechanical throttle cable, modern vehicles rely on this sensor to regulate throttle response, fuel injection, and engine power. A properly functioning sensor ensures smooth acceleration, precise throttle control, and optimal fuel efficiency.

• Delayed or unresponsive acceleration, due to incorrect pedal position signals.
• Check Engine Light illumination, often with throttle-related diagnostic trouble codes.
• Engine hesitation, stalling, or reduced power (limp mode), caused by faulty sensor readings.

About Genuine BMW

The original parts used by BMW to build your car are available as replacement parts under the “Genuine BMW” brand. When ordering a Genuine BMW part you are guaranteed to get the same part that you would pick up from your local dealerships part department. Genuine BMW parts have been built to BMW’s stringent standards and are the same quality of the original parts used to build your Ultimate Driving Machine.

You may not realize this, but the parts that make up your BMW are not necessarily manufactured by BMW. No cause for concern, as BMW designs the part, hires a manufacturer, and ensures its quality to you. In fact, many of these manufacturers have been making parts for BMW for decades. In our industry these manufacturers are called OEM (Original Equipment Manufacturers), and these are often brands you recognize, including Lemforder, ZF, Sachs, Bosch, Valeo, Zimmermann, Siemens VDO, Corteco, and more. Don’t be surprised to open that Genuine BMW parts box and find an OEM branded part inside, simply with the addition of a BMW logo.

Be sure to keep an eye out for OE tags on our product pages to quickly identify parts coming direct from OE manufacturers. That extra bit of insight could save you some serious money while shopping! Refer to our OE Academy for further information regarding the OE/OEM tags throughout the site.