One problem related to interior rearview mirror has been reported for the 2001 Volkswagen Passat. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2001 Volkswagen Passat based on all problems reported for the 2001 Passat.
I would like to report the failure of the automatic dimming rear view mirror on my 2001 vw Passat. It is a donnelly mirror, part 3bo857511e (also has the number 4231909 on it). The electromagnetic fluid suddenly created a bubble and leaked when I had it replaced. I have since learned that these mirrors were used in a wide variety of cars and have routinely failed and may contain Mercury and other very toxic substances. This presents a definitive safety hazard as one does not expect their rear view mirror to fail, absent being struck and broken, and to possibly leak toxic particles/fluid into the car or the air of the car. Also, one can't safely drive without the mirror and they often cost hundreds of dollars to replace (mine was $227. 30) and must be replaced immediately if the health hazards are to be minimized.