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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 Cleaner

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Air Filter Box

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Mass Air Flow Sensors/Car MAF Sensors | A-Premium

Air Flow Sensor

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Air Intake Duct

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Air Intake Hose

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Air Intake Manifold Actuator Control Solenoid

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Air Intake Manifold Flap Adjuster

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Air Intake Manifold Runner Control Sensor

Air Intake Resonator

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Electric Vacuum Pump

Engine Air Duct Assembly

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Engine Air Filter

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Intake Manifold

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Intake Manifold Flap Actuator

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Intake Manifold Repair Bracket

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Intake Manifold Runner Control Valve

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Intercooler

Intercooler Hose

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Oxygen Sensor

Car Oxygen Sensor Price From $24.99 | A-Premium

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Pressure Sensor

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Supercharger Pulley Drive Unit

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Supercharger Snout Rebuild Kit

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Throttle Body

Throttle Cable

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Throttle Position Sensor

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Turbocharger

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Turbocharger Gasket Kit

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Turbocharger Oil Line

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Vacuum Pump

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Air Filters & Intake Systems

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Camshaft Adjuster

Camshaft Adjuster Cover

Camshaft Kit

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Camshaft Timing Gear

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Camshafts

Chain Tensioner Adjuster

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Cylinder Head

Cylinder Head Assembly

Eccentric Shaft Actuator

Engine Timing Belt

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Engine Valve Cover

Engine Valve Cover Gasket

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Harmonic Balancer

Rocker Arm

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Rocker Arm Shaft Lifter Assembly

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Timing Belt Kit

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Timing Chain Gear

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Timing Chain Kit

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Timing Cover

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Timing-Control Valve Solenoid

Valve Cover Gasket

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Valve Lifter Guides

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Valve Lifters Tappet

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Cams, Timing & Valvetrain

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Belt Tensioner

Coolant Level Sensor

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Crank Installer Tool

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Crankcase Breather Hose

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Crankcase Breather Valve

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Crankshaft Position Sensor

Crankshaft Pulley

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Engine Oil Dipstick

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Engine Oil Dipstick Tube

Engine Oil Filter

Engine Oil Pan Gasket

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Flywheel

Harmonic Balancer Crankshaft Hub

Knock Sensor

Oil Baffle

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Oil Cooler

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Oil Cooler Line

Oil Drip Pan

Oil Filler Cap

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Oil Filter

Oil Filter Base

Oil Filter Cover

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Oil Filter Housing

Oil Filter Housing Cover

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Oil Level Sensor

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Oil Pan

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Oil Pump

Oil Pump Drive Gear Shaft

Oil Pump Pickup Tube

Oil Separator

Serpentine Belt

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Cranks, Pistons, Oil & Components

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Camshaft Position Sensor

Camshaft Position Sensor & Magnet Kit

Connector Plug

Distributor Cap

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Electronic Ignition System

Engine Valve Covers & Ignition Coils Kits

Glow Plug

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Glow Plug Relay Module

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Ignition Coil

Ignition Coils & Spark Plugs & Wires Kits

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Ignition Coils & Spark Plugs Kits

Ignition Coils & Wires Kits

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Ignition Distributor

Ignition Lock Cylinder

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Ignition Starter Switch

Ignition Switch Actuator

Kill Switch

Knock Detonation Sensor

Relay

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Spark Plug

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Spark Plug Wire

Electronic Control Modules, Ignition & Distributors

Engine Wiring Harness

Intake Manifold Repair Kit

Pulley

Engine Components & Accessories

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Active Grille Shutter Actuator

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Auxiliary Water Pump

Drive Motor Inverter Cooler

Electric Engine Water Pump

Engine Coolant Air Bleeder Valve

Engine Coolant Pipe

Engine Coolant Shut Off Valve

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Expansion Tank

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Expansion Tank Mounting Plate

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Fan Pulley Bracket

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Fuel Cooler

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Overflow Hose Connector

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Engine Cooling

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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.

BMW 740i Active Grille Shutter