Introduction
This tutorial explains how to replace the 4 spark plugs on Peugeot Expert 1.6i Petrol. Very simple to do because it is easy to access on this engine.
Parts
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The 4 spark plugs are located on the engine block towards the front of the vehicle.
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To remove the 4 spark plugs, I recommend doing them one by one, which avoids reversing the cables and limits the introduction of impurities into each cylinder.
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Allow the engine to cool before any intervention to avoid the risk of burns and for safety wear gloves.
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Disconnect the spark plug wire by pulling on the cap, not on the wire which could damage it.
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Loosen the spark plug using a spark plug wrench or a ratchet with a 16mm long socket.
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Finish unscrewing by hand and carefully extract it from the well.
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Clean the spark plug well using a blower or vacuum cleaner.
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Check that the new spark plug matches the old one in terms of thread diameter and electrode gap according to the manufacturer's instructions, in our case 0.9mm.
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Blow a jet of air inside the well using a blower to remove any deposits in the cylinder.
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Put the new spark plug in and screw it in by hand, then finish tightening moderately with the wrench.
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If you have a torque wrench, you can tighten it to the 25Nm torque recommended by Peugeot.
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Reconnect the high voltage wire, making sure to clip it securely.
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Do the same for the other 3 candles which do not pose any particular difficulty.
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