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Registered
Join Date: Aug 2005
Location: Fort Collins, CO
Posts: 332
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A temperature of 250 is too high. If coolant was drained/changed for any reason, there is always the possibility that air can get into the system and not be properly purged. To do this properly requires a vacuum-type tool. Air in the 996 cooling system can definitely cause problems that include hot spots in the engine and resulting damage. Ask the people who did the work if any coolant was drained.
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2015 Porsche Macan S, Dark Blue Metallic
2011 BMW 328xi, Crimson Red
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