Changing spark plugs on Abarth Fiat 500

Unclip the two collars using a flat screwdriver

Carefully disconnect the larger tube. Use a penetrating oil if necessary.

Unscrew the 10 bolt using a small ratchet and a 10 socket

Disconnect the hose located at the air inlet using a flat screwdriver.

Remove the block by pulling at the fixings to make it easier to maneuver.

To access the ignition rail, unclip the clamp and remove the hose, still using a flat screwdriver.

Unclip the iron fastener, lift the hose to release the bolt which will need to be unscrewed in the next step.

Unscrew the bolt using of a 13 socket wrench

Unscrew the 5 bolts of 10

Start with the mass one

Then unscrew the 4 bolts of the coils

Unclip the sensor using a flat screwdriver.

Then press the button above the sensor to disconnect it.

Disconnect the 4 coils and set the ignition rail aside

The 4 spark plugs are now accessible

Clean the 4 wells of each using a blower

Loosen the 4 spark plugs with the spark plug wrench

Remove the 4 spark plugs using the flexible candle

Check the correspondence between the new and old spark plugs (thread, size, electrodes)

Lubricate the thread of each spark plug with the oil dipstick to facilitate its insertion.

Screw the 4 spark plugs back in first by hand then tighten them with the spark plug wrench.

Do not tighten the spark plugs too tightly to avoid breaking them.

Reposition the ignition ramp and the 4 coils

Reconnect the sensor

Tighten the 4 screws on each coil

Remember to tighten the mass bolt

Also tighten the 13 bolt that holds the ignition rail

Reposition the hose

Tighten the collar with pliers

Collect the 2 rubbers

Install the 2 rubbers on the filter blocks. Pay careful attention to the direction, insert them through the smallest part.

Reposition the air filter cover

Reconnect the air inlet hose

Fit the air inlet hose and tighten the clamps

Reinstall the large air hose (use W40 to facilitate insertion of the pipe)

Tighten the collar

Tighten the 10 bolt