VW Heater & Defrost Hose – 111-255-455C The 111-255-455C is a specialized flexible hose designed to route warm air from the heater channels to the defrost vents and footwells. Measuring 38mm in diameter and 1000mm (1 meter) in length, this hose is constructed from a combination of paper, aluminum, and plastic layers. This multi-layer design is essential for an air-cooled Volkswagen, as it provides the flexibility needed to snake through tight body cavities while insulating the air to prevent heat loss before it reaches the cabin. Over time, these hoses become brittle, crushed, or torn, which leads to a complete loss of defrosting capability and cold air leaks under the dash. Replacing old, leaky hoses with the 111-255-455C restores the velocity and temperature of the air hitting your windshield, which is critical for safety during cold or humid driving conditions. Detailed Vehicle Compatibility This 38mm hose is used primarily in the front dash and door post areas for these models: VW Beetle (Standard): 1968, 1969, 1970, 1971, 1972, 1973, 1974, 1975, 1976, 1977 VW Super Beetle: 1971, 1972, 1973, 1974, 1975, 1976, 1977, 1978, 1979 VW Karmann Ghia: 1968, 1969, 1970, 1971, 1972, 1973, 1974 Product Highlights & Features Tri-Layer Construction: Features an aluminum inner core for heat reflection, a paper insulating middle, and a plastic outer layer for durability and moisture resistance. High Flexibility: Capable of making tight 90-degree bends without kinking or collapsing, ensuring unobstructed airflow to the defrost vents. Trimmable Length: Provided in a 1000mm length, allowing you to cut the hose to the exact size needed for various sections of the heating system. OE Appearance: Matches the factory silver/grey aesthetic found in original Volkswagen engine bays and interior trunk areas. Technical Specifications Part Number: 111-255-455C Diameter: 38mm (Internal) Length: 1000mm (1 Meter) Material: Aluminum / Paper / Plastic Composite Installation & Maintenance Tips Measure Twice, Cut Once: These hoses are sold in 1-meter lengths. Measure your original run before cutting to ensure you have enough slack for the hose to expand and contract slightly during temperature changes. Check Your Clamps: For a leak-free seal, ensure your hose clamps are tight but not over-tightened. Over-tightening can crush the aluminum core of the hose, restricting airflow. Avoid Sharp Edges: When routing through the body, ensure the hose is not rubbing against sharp metal edges. Use a rubber grommet or protective tape at pass-through points to prevent the hose from tearing. Seal the Connections: If the hose feels slightly loose on the plastic vent tube, a single wrap of electrical tape on the vent tube before sliding the hose on can create a much tighter, more efficient seal. 111255455C
