NISSAN 82860-VD22B Right Rear Door Vapor Barrier

The genuine Nissan (SKU: 82860-VD22B) right rear door vapor barrier (screen sealing) is a critical body component positioned between the door inner metal panel and the interior door trim panel. Its primary function is to prevent moisture, vapor, dust, and drafts from entering the passenger cabin from within the door cavity.

Key Functions and Importance:

• Moisture Protection: Prevents rainwater or wash water draining along the door glass from reaching the interior door trim, preventing discoloration, mold formation, and structural damage.
• Protection for Electrical Components: Protects electrical components housed within the door (window regulator motor, central locking actuator, speakers, wiring harnesses) from direct moisture and corrosion.
• Noise and Thermal Insulation: Reduces draft, wind, and exterior road noise entering the passenger compartment, enhancing acoustic comfort and thermal insulation.

Technical Specifications:

• Fitting Position: Right rear door (interior side)
• Material: High-density, tear-resistant polyethylene (PE) film resistant to temperature fluctuations and moisture.
• Mounting: Affixes to the metal door frame using specialized butyl sealing tape, providing a durable, flexible, and watertight bond.
• Manufacturer: Nissan (Genuine OEM part)

Symptoms of a Damaged or Worn Vapor Barrier:

• Water ingress into the passenger compartment, particularly in the rear footwell or at the bottom of the door.
• Musty odor inside the vehicle and the appearance of mold patches along the lower edge of the right rear door card.
• Warping, detachment, or discoloration of the interior door trim.
• Persistent window fogging inside the cabin caused by elevated humidity levels.

To ensure a complete and lasting seal during installation, ensure the butyl adhesive tape is applied continuously without gaps and fit the film smoothly without creases.