Introduction
This guide will show you how to remove and replace the spark plugs of your Peugeot 306 1.8 16v petrol engine.
It is recommended to clean your sparkplugs when a warm start is difficult or slowing down seems unstable. Dirty sparkplugs can result in a weaker spark or even no spark at all.
The lifespan of a sparkplug varies between 30,000 to 60,000 km (18,640 to 37,280 miles), depending on the brand and use of the vehicle.
What you need
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Open the engine hood of the vehicle, using the lever located bottom left of the dashboard, by the pedals.
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Locate and then disconnect the car battery.
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Press the locking rod near the bottom to release the connector.
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Disconnect the ignition coil connector.
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Locate the six H4 screws on the ignition coil pack.
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Use an H4 (or T30) screwdriver to unscrew the six screws.
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Grip the ignition coil pack on both sides and pull it directly upwards to remove it.
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Locate the four spark plug chambers.
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Grab a spark plug wrench (size 16mm).
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Insert the wrench into the first spark plug chamber, until you reach the bolt.
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Unscrew the first spark plug, remove it from its chamber.
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Continue in the same manner for the other three spark plugs.
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You can now proceed to clean or replace the spark plugs.
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To reinstall the spark plugs, repeat this procedure in reverse.
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To reassemble your vehicle, follow the instructions in reverse order.
To reassemble your vehicle, follow the instructions in reverse order.
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