Auxiliary heater is running but interior is cold | Check circulation pump | Auxiliary heater not ...

Auxiliary heater not working? A common cause of a cold interior or engine after using a Webasto or Eberspächer auxiliary heater is a defective circulation pump. In this video, we explain why the coolant in the heat exchanger can heat up but isn't circulating in the system. Often, no error message is displayed in the memory. Therefore, troubleshooting using the VCDS actuator test and diagnostics is very helpful. We show how the circulation pump is controlled and when a flowing noise should be heard. If no pump noise is audible, troubleshooting should focus on the circulation pump. ✨ Were we able to help you? If you enjoy our content or it has helped you progress, we would be delighted to receive a small token of your appreciation. You can support us with a coffee on Ko-fi – so we can continue to share helpful ideas, tips, or inspiration with you. ☕ ➡️ https://ko-fi.com/diagvids (PayPal) ☕ #vcds #parkingheater #webasto