VAG Knock Sensor - Part Code 030905377A

This VAG knock sensor, part code 030905377A, is a critical component for modern engine management systems. Its primary function is to detect abnormal vibrations or 'knocking' within the engine cylinders. This knocking, also known as detonation or pinging, occurs when the fuel-air mixture ignites prematurely or unevenly, leading to excessive pressure and potential engine damage. Upon detecting these abnormal vibrations, the knock sensor sends a signal to the engine control unit (ECU). The ECU then adjusts engine parameters, such as ignition timing, to retard it and prevent further knocking. This proactive measure protects the engine from harmful stress and ensures it operates within its designed parameters, contributing to longevity and reliability. Installing a genuine VAG knock sensor guarantees compatibility and performance that meets the manufacturer's specifications. This ensures that your engine receives the accurate feedback it needs to operate efficiently and safely, preventing costly repairs down the line. It is an essential part for maintaining the integrity and performance of your VAG vehicle's powertrain.

• Genuine VAG part for guaranteed fit and performance.
• Part Code: 030905377A
• Detects engine knock (detonation/pinging) to prevent damage.
• Signals the ECU to adjust ignition timing for optimal operation.
• Helps maintain engine health, efficiency, and longevity.
• Ensures precise engine management and smooth running.
• Direct replacement for original equipment sensor.