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Old 10-10-2012, 07:54 AM
mr magoo mr magoo is offline
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Location: south of Boston
 
Join Date: Mar 2010
Posts: 57
Mein Auto: 2000 528i
Last week I ran low without warning

My low coolant warning never triggered. I saw slight steam while sitting in traffic, and watched the temp gauge on on normal until the I got home and it jumped to red. (Good karma in driveway). Temp gauge told me red hot but sensor never warned me. I refilled to find the culprit as the radiator plastic-to-metal seal. Also replaced reservoir and low coolant sensor. It will be difficult to access this sensor for a change without pulling out the reservoir.
I still don't know if the new sensor is in force without running it low.
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