Hello!

Little problem... I can't remove the plug under my B14 engine

Can I have the confirmation that I use the right key (square 10 mm) cause I find it strange that it moves so much into the plug...

Thanks!

I use a 3/8 inch square extension. I've worked out that the metric is about 9.5mm so I would say 10mm would do nicely.

Could try put penetrating oil on for a few days and keep trying. Whe you get it off, use a new washer then you won't need to overtighten to get it to seal.

you can always use a 'breaker bar' - basically a long handle with that socket on the end.. maybe 30cm long

Aymat , is that a belgian 10mm coz we all know a belgian 10mm isnt as big as a british 10mm hence it being a sloppy fit LOL