Water Flange Heater Rad (Topran) (Volkswagen Golf V / VI / Touran / Passat B6 / Audi A3 8P 1.9 2.0TDI 1.6TDI) is an essential cooling system component designed for specific Volkswagen and Audi diesel engine models. This water flange heater connects directly to the heater radiator circuit, regulating coolant flow and temperature to deliver effective cabin heating and maintain engine thermal stability.
This part fits various vehicles including Volkswagen Golf V and VI, Touran, Passat B6, and Audi A3 8P models with 1.9L, 2.0TDI, and 1.6TDI engines. When replacing this unit, confirm compatibility by matching the original water flange heater’s design and engine specifications to ensure proper coolant routing and heater function. It typically mounts to the engine cooling system, playing a critical role in your vehicle’s interior heating performance and engine warm-up process.
Buyers should verify the part against their existing flange not only for fitment but also for the appropriate brand reference, here indicated by Topran, a known provider of automotive cooling components. This aligns the replacement with the demands of the cooling and heating system integration specific to these Volkswagen and Audi models.
- Fits select Volkswagen and Audi TDI engines
- Controls coolant flow to heater radiator
- Check against original for correct fitment
Need help matching this item to your vehicle? Use Vehicle Parts Finder, Request a Part or Platinum Sales Desk with your VIN, engine number, part number or clear photos.