* No mounting points: Sedans typically don't have the necessary mounting points on the rear window for a wiper arm and motor.
* Rear window design: The design of most sedan rear windows is not conducive to a wiper blade, as they often have curves and angles that would make it difficult for a wiper to effectively clean the entire surface.
* Electrical wiring: Adding a rear wiper would involve running new electrical wiring to the rear of the vehicle, which can be a complex and potentially dangerous task if not done by a professional.
* Cost: Retrofitting a rear wiper would likely be quite expensive due to the specialized parts needed, the labor involved, and the potential need for modifications to the vehicle's electrical system.
Alternatives:
* Rear window defroster: Most sedans have a rear window defroster that can help to clear condensation and ice.
* Cleaning cloth: You can manually clean the rear window using a cleaning cloth or squeegee.
* Rearview camera: A rearview camera can provide a clear view of the area behind the vehicle, even if the rear window is dirty.
While it's not impossible to retrofit a rear wiper, the challenges and costs involved make it generally not worth the effort.
