I have a 2006 E90 325I with the driverside electric outside mirror acting up. I have tried all the programming and memory settings to no avail. The stealer wants to charge me $718.00 to replace it. I would like to do it myself. Can anyone send me instruction on how to do it (I do not have a Bentley Manual) I can not imagine it is that difficult. Also would appreciate a suggestion on where to source OEM parts at lower cost? Any tips or help would be appreciated.