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Old 09-21-2012, 05:09 AM
pshovest pshovest is online now
BMW CCA 69606
Location: DE
Join Date: Dec 2009
Posts: 1,379
Mein Auto: '10 535i '08 X5 '00 528i
Interesting problem. Next time you find it running with engine off, disconnect the temp sensor on the radiator outlet. If fan stops I'd clean connector if corroded and/or replace sensor. If you replace sensor be sure to get new oring. Can you measure the sensor's resistance hot and cold, and w/fan running and post?
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