Help needed: Fault code 2EF5 DME: Map thermostat, activation

[EL118]

Sent my E66 730 for checking for air cond blowing inconsistency, the above error came out. is it the standard thermostat? some say time to change water pump also, advice needed. thank you!

 

[nowa]

hi bro..its item no 2..ive changed mine last month with used unit..cost me 400..some call it transistor..others call it regulator
http://realoem.com/bmw/showparts.do?model=GN42&mospid=47780&btnr=64_1249&hg=64&fg=40

 

[EL118]

hi bro..its item no 2..ive changed mine last month with used unit..cost me 400..some call it transistor..others call it regulator
http://realoem.com/bmw/showparts.do?model=GN42&mospid=47780&btnr=64_1249&hg=64&fg=40

the error code is the thermostat, of which after changing no more error. as for aircon blowing problem, I have changed both item 1) blower and 2 ) regulator, still same problems, dunno what else to change. he he