Hi friends.
I have a 2011 model minibus with 2.5 TDi Bjm engine163 ps.
The recirculation and thermostat have changed in this van, the external water pump has been checked. No problem, the interior heating of the car is not tested well, the internal heating core has been confirmed to be open and clean, the problem is that after starting my vehicle, it needs to heat within an average of 10 km. the heater is blowing warm, there are no air bubbles in the water system of the car. Does anyone have the hot water flow diagram of this vehicle?
Thank you.

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