Quote:
Originally Posted by Meir
The heating system in the car is very simple. Hot water from the engine is constantly circulated thru the heater core located in the HVAC box.
The only thing that controls the heat, is the position of the flaps.
I would start with replacing the control unit, as it is the easiest task.
See if you can borrow one, and make sure you are using the correct part number.
If you post your part number, I can check if I have one, and can lend it to you.
If replacing the control panel will not solve the issue, you will have to start troubleshooting the flaps motors, and the temperature sensors.
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There's a valve that controls water flow also.