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Old 09-21-2012, 05:09 AM
pshovest pshovest is offline
BMW CCA 69606
Location: DE
 
Join Date: Dec 2009
Posts: 600
Mein Auto: '10 535iA, '00 528iTM
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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