Engine: 70 T5: - New thermostat, engine temp still dropping when coasting

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Engine: 70 T5: New thermostat, engine temp still dropping when coasting

850 / S70 & V70 '96-'99 / C70 '97-'05 General Forum for the 850 and P80-platform 70-series models

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Apr 29th, 2013, 20:42	#1
MikeS100 Premier Member Last Online: Mar 21st, 2024 21:39 Join Date: Oct 2011 Location: Sevenoaks	New thermostat, engine temp still dropping when coasting So I got my new thermostat fitted this evening, it seems to be working ok as the top hose stayed cool until the engine temp was up to normal and then got hot suddenly which you would expect. But, when I went out for a test drive the temperature needle stayed dead centre for most of the time but dropped to cool on a long downhill stretch. So, if the thermostat is working properly what else could cause this? I don't think there is any air in the system as I followed all the proper procedures for refilling the coolant and got plenty of air out. Any suggestions as to what else I could look for? __________________ 1999 V70 TDi (auto) 2002 C70 T5 GT Convertible (manual) 2008 XC90 D5 Executive (auto)

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