Genuine OEM Volkswagen Foam Seal, part number 3C9839731A. This seal functions to provide cushioning, vibration dampening, and sealing in various automotive applications within the door assembly. It is located in the door panel area. The seal is made of foam material for its compressibility and sound-absorbing properties. Genuine OEM foam seals ensure proper fitment and effective performance, contributing to a quieter and more comfortable cabin.