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Old 06-09-2011, 07:28 PM
edjack edjack is offline
Officially Welcomed to the 'Fest
Location: San Jose, CA
 
Join Date: May 2007
Posts: 9,091
Mein Auto: '97 540i 6 speed
The aux fan should come on when the A/C is on, at the low speed. If the engine gets hotter, the fan will speed up (it has 3 speeds on your MY).

The FSU has no control over the aux fan - it's strictly to control the HVAC blower.
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Ed in San Jose '97 540i 6 speed aspensilber over aubergine leather. Build date 3/97. Golden Gate Chapter BMW CCA Nr 62319.
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