Genuine OEM Audi Camshaft Adjuster Solenoid, part number 03L109096B. This essential engine component precisely controls the camshaft timing, optimizing valve lift and duration for improved engine performance and fuel efficiency. It is typically mounted on or near the cylinder head, interacting with the camshaft. Weighing 0.561 kg and measuring 0.173 m in length, this solenoid is critical for variable valve timing systems, where exact electrical and mechanical calibration ensures proper engine operation and prevents fault codes.