Hella 009121281 Engine Camshaft Position Sensor for BMW

The Hella 009121281 is a direct-fit OE-quality camshaft position sensor engineered for BMW applications. The camshaft position sensor — sometimes called a CMP sensor or cam sensor — monitors the rotational position of the camshaft and sends real-time data to the engine control module (ECM). This signal is critical for precise fuel injection timing, ignition timing, and variable valve timing (VVT) operation.

Key Features:

• OE-equivalent design for reliable, accurate camshaft position monitoring
• Manufactured by Hella, a Tier 1 OEM supplier trusted by major European automakers
• Ensures proper fuel injection and ignition timing for optimal engine performance
• Helps prevent rough idle, misfires, hard starting, and poor fuel economy associated with a failed CMP sensor
• Built to meet or exceed original equipment specifications for fit, form, and function
• Plug-and-play installation — uses the factory wiring connector for a seamless swap

Hella is a globally recognized OEM and aftermarket supplier with deep roots in the European automotive market. Part number 009121281 is a precision-engineered replacement designed to restore proper engine management operation and eliminate camshaft position-related fault codes such as P0340–P0349.