View Single Post
Old 11-28-2012, 05:53 PM   #2
Registered User
Join Date: Sep 2011
Location: TEXAS - Circuit of the Americas doing laps with my M5 and coming in for a pit stop.
Posts: 3,427
My Ride: 03 330iT SportWagon
Check you temp sensor in the lower hose. If you disconnect it when the ac is on, it should cause your fan to go into high speed.

There is no seperate relay. It is all contained in the fan controller attached to the fan itself.
BMWCaptain is offline   Reply With Quote