i take it you need to replace whole mirror, so open door and you should see 2/3 round plastic covers, remove them and you will see the fixing bolts, undo them and mirror should come off, but, you do not say if it is electric, manual toggle on door or on a toggle on side of door,if on side of door should come straight out, electric, undo wire connector, manual toggle on door, need to undo connection. good luck
helpful?, July 2010