Oil Temperature Gauge Light Blinking

[Devincmdwn]

:troll::ah::dance::chicken:I have a 2002 Porsche Boxster. I recently purchased it about 3 months ago. The Red light at the right end of the water temperature gauge is blinking non stop pretty slowly. I've checked the fluids multiple times and under the carpet and saw nothing. So i took it to an import place and they say it's gonna cost 1k quid to ifx it and basically pull out the tank and ifx it so that the floaty in the tank which is supposedly broken, to be ifxed. Some people though have said to cut the sensor for that if i knew how, then just watch your gauges and fluids a lot like i already to. Another person said that i needed to check the top of the trunk when i pull it up to see if there is moisture where the small cluster is. there was. i wiped it down but it's consistently there. she said if i change the cap on the radiator fluid it'll keep it from over spilling up the top and onto the ceiling of the trunk and that would ifx this. I'm justt lost and confused. anyone pleases help me?