Can i solve the misfire on my RenaultSport Twingo 133?

Over the past few weeks my 2009 RenaultSport Twingo RS developed a misfire that was getting worse and worse.
Tried replacing the 4 pencil like ignition coils but that didn't work. Today we try to solve this.

[@user-es6cs5fs6n]

Water enters through the ignition coil packing. The cause is the upper cowl top. Water leaks from the gap and falls around the spark plug. I have taken countermeasures. From Japan

[@richwilliams9895]

The renault 1.6 16v lumps do suffer coils and need sparks at same time, if my memory serves me correct they are never 100% smooth at idle anyway. Think it is just a charactaristic of them engines. Renault scuttle issues are present on every model in their range lol.

[@ChrisFEJackson]

I've got the same issue with cylinders 3&4. Whoever replaced the coil pack on 4 put the securing bolt in too tight and has sheared. I was a bit reluctant to to use excessive force on the spark plugs in case it did snap. But seeing as I need to get the manifold off to sort the coil pack retaining bolt I'll leave it until then.

[@TheTwingoChannel]

I had same on cylinder 4 coil pack retaining bolt. I tapped it out and then installled a 10mm bolt not an 8mm.

[@soterman77]

Let us know if the new sparkplugs solved the issue completely, thanks!

[@TheTwingoChannel]

Yes new coils and spark plugs sorted it all. Also resealing the scuttle and windscreen plastic cover.

[@soterman77]

Good job, thanks.

[@Celiberti_Mario]

I have also on a Twingo GT problem with Misfire it say on Cylinder 1 it blink the MIL and like in acceleration it goes like sometime empty i change also the Spark plugs like 1 to 4 and 2 to 3 and it say then to me Cylinder 4 misfire

[@TheTwingoChannel]

Check your central coil pack. Different ignition setup to the 1.6 engine.

[@cbuzz2371]

A rattle at start up can be a dephaser fault