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<h2>What is Engine Oil Cooler?</h2>&nbsp;A car engine oil cooler is a device designed to help regulate the temperature of the oil in your car's engine. The oil in your car's engine plays a crucial role in keeping it running smoothly, as it lubricates moving parts, reduces friction, and helps to dissipate heat. However, when the engine gets too hot, the oil can break down and lose its effectiveness, potentially leading to engine damage.&nbsp;To prevent this from happening, some car engines are equipped with an oil cooler. This is essentially a small radiator-like device that is typically located in the front of the car, behind the grille. The oil cooler is connected to the engine's oil system, and oil is circulated through it just like it is through the engine itself. As the oil passes through the cooler, it is cooled by air passing over it, much like the way a car's radiator cools the engine coolant.&nbsp;By keeping the engine oil at a more stable and optimal temperature, the oil cooler helps to ensure that the oil is able to perform its lubricating duties effectively and helps to prevent damage to the engine. An engine oil cooler is especially beneficial in situations where the engine is being worked hard, such as when towing heavy loads or driving in hot weather conditions.&nbsp;<h2>Be aware of Oil Cooler Failure Symptoms</h2>&nbsp;An engine oil cooler failure can cause serious problems for your vehicle if not detected early. If you notice these&nbsp;signs, they may indicate an engine oil cooler failure:&nbsp;Overheating engine: If the engine starts to overheat or if the temperature gauge shows that the engine is running hotter than usual, this could be a symptom of a faulty oil cooler.&nbsp;You need to check your oil cooler ASAP.&nbsp;Oil leaks:&nbsp;A damaged or malfunctioning engine oil cooler may cause oil leaks. You can look for oil stains or puddles under your vehicle&nbsp;to confirm.&nbsp;Low oil pressure:&nbsp;Notice a sudden drop in oil pressure?&nbsp;Could be a sign of a failed oil cooler.&nbsp;Discolored oil:&nbsp;If the oil looks discolored or has a milky appearance, this could indicate that coolant has mixed with the oil due to a faulty oil cooler.&nbsp;Smoky exhaust: If you notice blue or gray smoke coming from the exhaust, go check the engine&nbsp;oil cooler&nbsp;of your vehicle.&nbsp;This&nbsp;can be caused by oil burning in the engine.&nbsp;<h2>Engine Oil Cooler Replacement</h2>&nbsp;To replace an engine oil cooler, you need to:&nbsp;<ol><li>Prepare the vehicle by ensuring the engine is cool and the vehicle is parked on a level surface.</li><li>Drain the oil and remove the oil filter.</li><li>Disconnect the oil cooler lines using a flare nut wrench.</li><li>Remove the oil cooler by unscrewing the mounting bolts.</li><li>Clean the mounting surface with a gasket scraper or razor blade.</li><li>Install the new oil cooler and secure it with the mounting bolts.</li><li>Reconnect the oil cooler lines and torque the flare nuts.</li><li>Install a new oil filter and fill the engine with fresh oil.</li><li>Test the system for leaks and proper oil level.</li></ol>

Oil Cooler

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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

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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 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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Radiator

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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.

2004 BMW 525i Oil Cooler

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