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Old 09-19-2005, 09:27 AM   #2
MNBoxster
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Join Date: Sep 2005
Location: Minneapolis/St. Paul, Minnesota, USA
Posts: 3,308
Hi,

Those temps are definitely on the high side. The temp on a Boxster will fluctuate pretty good, but unless you are constantly in Stop & Go (mostly Stop) traffic, you shouldn't be in this range. I suspect that the issue is one of two things (or a combination of both): First, make sure that the Radiators are clean, freee of leaves and debris and are flowing properly. This is done by back-flushing the Radiator fins using a hose or High Pressure air (you must remove the Bumper for access, but not too difficult a DIY project). Secondly, you may have air in the cooling system which needs to be bled. This is a little more complicated and unless you're familiar with doing it, it's best left to the Dealer. Since your car is a 2000, it might be a good idea to have the system flushed and refilled with fresh coolant. Despite what Porsche says, it really isn't LifeTime coolant, it's more like 5yr./150k mi.
Hope this helps...

Happy Motoring!...Jim'99
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