mysweetX5, thanks for explaining in details. My confusion here is WHY '04 -'06 yr models don't have this AUX fan which is found in front of the radiator like pre-facelifted yr models?

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'04 4.4i BSM/TB w/ spt & premium pkg, pan roof, navi.
'05 Infiniti G35
'00 e39 M5 (sold)