Changing the spark plugs - on Peugeot 106 1.4i

The hood release handle is located under the steering wheel, pull it to open it

Pull the handle under the hood on the right side and then open the hood

The 4 spark plugs are located behind the rocker cover on top of the engine

Remove the 4 ignition cables by simply pulling on them, these are connected to the spark plugs

Once the 4 ignition cables are removed you have access to the spark plugs

You will need a medium sized ratchet , a large extension and most importantly a long 16 socket to remove the spark plugs.

Place the socket on top of the spark plug then loosen the spark plugs

The spark plugs come out easily and should stay in the socket when reassembling the socket

Repeat the operation on the other 3 candles

Compare the dimensions of the new spark plugs with the old ones. My spark plugs were worn out (on the left)

The number of electrodes (on the head) may vary depending on the make and model of the spark plug but does not alter the assembly in any way.

Place the new spark plug into the 16mm long socket.

Place the spark plug and socket in its location and tighten.

The torque value for a 16 mm diameter spark plug is approximately 25 to 35 Nm. If you do not have a torque wrench to perform precise tightening, this corresponds to a fair tightening, neither too strong nor too weak .

Repeat the operation on the other 3 candles

Replace the 4 ignition cables on the spark plugs

Start your engine to check that your new spark plugs are working properly.