I had a similar experience the other day...but it was really hot here in CLT and I was in serious city traffic. Mine went to the '0', but no higher. Both fans kicked in and it seemed to stabilize. I have only had my car since January, so I have no idea if this was normal. Took it to P dealer here for an oil change yesterday and asked service consultant about it - he said it was perfectly normal.
I know JFP is adamant about these gauges being woefully inaccurate, but it seems the end of the '0' is when the fans should kick in...but I am a newbie to watercooled P cars.... I miss my VDO gauges
