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Old 05-16-2013, 08:17 AM
rdl rdl is offline
Officially Welcomed to the 'Fest
Location: Ontario, Canada
Join Date: Jun 2010
Posts: 1,442
Mein Auto: 530i 2003
I too, cannot see a leak.

However, if the red arrows point at the leaks, it's the expansion tank.
If the yellow arrows, the lower rad hose. The electrical sensor in the lower rad hose is the radiator outlet temp sensor used to control the electric auxillary fan in front of the rad and A/C condenser.

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