Peugeot 306 S16 PH1

[Pingaz]

Temperatures seem normal, particularly as you live in Portugal and not shitty England!

You could change the sensor if you wished, bu the gauges aren't accurate anyway. The reading on them can also be affected by earths and the battery being bad etc. Make sure the fans are cutting in though.

To seal your rear lights, try using some vaseline on the seals, they normally dry out and go hard with age and the vaseline can soften them up again.

Finally, if you really want to get rid of cabin leaks, check under the wiper motor and hoover away all the leaves and horrible crap that collects there, it blocks the drain hole and then water seeps into the cabin. I'm not sure if this is the case on left hand driver cars but worth checking anyway. Also, get an airline down the drain holes for the sunroof and blow the debris out so they don't block up.

Hmmm, so how i can check the earths ? The fans are cutting in. I'll probably try to install a gauge or changing the speedometer for an s16/gti6 one
I'll try to do my best rebuild the vaseline.

I've blow the debri with an air compressor, i'll try to put a wire down the drain carefully. I've sealed the sunroof with silicone so it doesn't get water inside then reparing the sunroof is the next spec.