Tried to fit my new spark plugs just now.......what a surprise that it wasnt as easy as it should be. Can someone tell me please how the hell i get the wiring harness off the coil packs. Theres a clip on each one do i push it pull it......shout at it??? Please help....thanks.

push squeeze then pull

I changed my spark plugs a few months ago & i cant remember exactly how i realised the wiring connector but it wasnt hard & you shouldnt need to force it.Took me longer to get the engine cover off & change the air filter than it did the plugs. 

Pull back the square tab on the plug with a terminal screwdriver on all 4 plugs, gently ease off the connectors. Job done.

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I used a screwdriver on the tabs & pushed towards the firewall while pulling the wiring loom towards the firewall.  Just try each one.  You'll probably have to repeat several times as you need all 4 unclipped before it will disconnect.

 

I make a double loop out of some blind cord or a couple of cable ties to cradle the coil packs & lift them upwards

Thankyou. They still wont budge tho ill take it to a mechanic i know.

Squeeze the square tab push forward then pull back.

Be brave, they are really not that difficult to remove.

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Ive also noticed the four locators on the engine cover the bottom left one is missing as you view it from the front. Theres a small hole should i tape it up and would it affect the cars performance if i left it?. Ive noticed the engine cover acts as a passage for air for the air filter but this seems to be more situated at the top of the engine cover where it is thickest. The engine cover seems solid still when located on the remaining three holes.