Peugeot 306 S16 PH1

[Pingaz]

Unbolt each earth you can find and clean the contact area up with sandpaper, then bolt it back down.

I do think your temperatures are normal though.

Well now, before the head work the temperature gauge never reaches 110ºC so its fine i would guess.

On the other head, the first speed of the fan is not kicking in, I had this problem before but was sorted out but now probably is the relay broken. I'll try to make that the 2nd speed kicking where the 1st speed was, to make the things simple right ?