You have confused clutch syndrome. It is rare. Seriously though, the clutched fan for the cooling system and your pedal operated clutch are two distinct entities, let's not confuse them. The "overheating" problem with your car falls under the description of a bulletin (SIB11-11-06) for reflashing to correct this issue, replacement of hard parts would be non-productive, even if advised.
SI B 11 11 06
This Service Information bulletin supersedes S.M. B11 201 03 dated February 2003.
M52TU M54 DME FC 222
E53, E39, E46, E36/7 (Z3) with M52TU, M54 up to 01/03
During prolonged warm-up, when ambient temperatures is below -10 C and full heat or defrost is selected, engine temperature gauge goes to red. Engine does not overheat. Possible additional faults: EGS 148 (94) CAN Engine Temp.
Possible software calibration in DME.
The improved DME software was introduced since DIS CD V32 with update 1.
On a customer complaint basis, reprogram DME with the current version of Progman. Do not replace thermostat or other components.
Covered under the terms of the BMW New Vehicle Limited Warranty.
Defect Code Refer to KSD
Labor Operation: Refer to KSD
Labor Allowance: Refer to KSD
Sunday, November 22nd, 2009 AT 9:18 AM