This genuine VAG Self-levelling Sensor with Linkage (part code 5QS412521) is designed to precisely monitor your vehicle's ride height. By accurately detecting changes in the suspension, it communicates this information to the headlight control module. This communication is crucial for automatic headlight levelling systems. These systems adjust the angle of your headlights to compensate for load changes, such as passengers or cargo, ensuring the light beam is always directed correctly onto the road. This prevents dazzling oncoming traffic and maximizes illumination of the road ahead. Replacing a faulty sensor or linkage is essential for maintaining the effectiveness of your vehicle's headlight levelling system. A malfunctioning unit can lead to improperly aimed headlights, reducing visibility and potentially causing safety issues. Trust in genuine VAG parts for a perfect fit and reliable operation.
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