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<h2>What is an active grille shutter and how does it work?</h2>
An active grille shutter is a component found in some modern vehicles that can open and close the grille in front of the engine to control the amount of airflow entering the engine compartment. This technology is designed to improve aerodynamics, enhance fuel efficiency, and optimize engine cooling based on various driving conditions.
Active grille shutters work by adjusting the opening of the front grille to control the flow of air entering the engine compartment.
<h2>A step-by-step breakdown of how an active grille shutter operates</h2>
<ul>
<li>System monitoring: Sensors track engine temp, speed, and conditions.</li>
<li>Driving conditions: The control system decides optimal airflow based on sensor data.</li>
<li>Opening/closing: Adjustable vanes control grille opening.</li>
<li>Cooling mode: Opens during engine strain or high temps&mdash;Cools engine by increasing airflow.</li>
<li>Aerodynamic mode: Closes at high speeds or efficient cooling. Boosts aerodynamics for better fuel efficiency.</li>
<li>Cold start optimization: Keeps shutters closed for quicker warm-up. Enhances efficient combustion and emissions control.</li>
<li>Seamless automation: The system adjusts vanes automatically. No driver input is needed for real-time adjustments.</li>
</ul>
<h2>Active grille shutter replacement</h2>
<ol>
<li>Prepare: Park safely, and disconnect the battery.</li>
<li>Access: Remove grille/bumper parts if needed.</li>
<li>Disconnect: Unplug electrical connections if present.</li>
<li>Remove: Unscrew and detach the old shutter.</li>
<li>Install: Position and attach the new shutter.</li>
<li>Secure: Fasten with original screws/bolts.</li>
<li>Reconnect: Plug in electrical connections.</li>
<li>Reassemble: Put back grille/bumper parts.</li>
<li>Test: Reconnect the battery, and ensure proper operation.</li>
<li>Final check: Confirm the shutter works correctly.</li>
</ol>

Active Grille Shutter

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Air Filter Box

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Air Flow Sensor

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Air Intake Manifold Runner Control Sensor

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Intake Manifold

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Oxygen Sensor

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Pressure Sensor

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Engine Oil Dipstick Tube

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Camshaft Position Sensor

Camshaft Position Sensor & Magnet Kit

Connector Plug

Distributor Cap

Engine Valve Covers & Ignition Coils Kits

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Ignition Coil

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Engine Wiring Harness

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Engine Components & Accessories

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Expansion Tank

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Expansion Tank Mounting Plate

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Water Outlet

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Engine Cooling

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Engine Mount

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Catalytic Converter

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EGR Valve

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Exhaust Manifold

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Fuel Vapor Leak Detection Pump

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Nitrogen Oxide Sensor

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Fuel Injector

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Idle Air Control Valve

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Fuel Systems & Components

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The engine comprises many essential elements such as the lower cylinder block, upper cylinder head(s), and the cooling & lubricating systems. With A-Premium aftermarket engine components, you can expect that your engine deliver years of reliable performance. We offer a diverse selection of engine components from air filters and ignition coils (kits) to fuel pumps to cater to your needs.

Volkswagen Jetta Active Grille Shutter