One problem related to wiper has been reported for the 2004 Mercedes Benz E320. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2004 Mercedes Benz E320 based on all problems reported for the 2004 E320.
The driver's side mirror auto-dim function failed (as theorized by simple research where others have this issue) December 2023 and leaked a liquid behind the glass causing blurriness, double vision, and extremely dim reflection. This makes it difficult to safely judge other traffic using the mirror and seems very dangerous while driving. It also seems to present a risk of misjudging any other objects on the road which are reliant on this mirror. The equivalent replacement mirror glass alone is prohibitively expensive and mercedes-benz USA was contacted twice for help and refused to provide help or replacement. Neither the manufacturer nor another entity has inspected it yet. The mirror is available for inspection upon request. The passenger side view mirror is not auto-dimming so there is no issue.