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What is the tutorial for removing the heater in a Changan minivan?

2 Answers

LaSpencer

08/29/25 6:44am

Tutorial for removing the heater in a Changan minivan: 1. Drain the coolant from the cooling system; 2. Remove the control panel, then detach the cable fastener on the left side of the heater unit, and also remove the screws on the terminal posts; 3. Disconnect the wiring connector behind the blower motor, and place a container under the heater supply pipe below the engine and behind the cylinder head; 4. Disconnect the heater supply pipe behind the cylinder head, and also disconnect the heater return hose on the thermostat housing, draining the coolant from the pipes into the container; 5. Disconnect the control wiring for the blower motor switch, then remove the heater unit. The Changan CS75 has a body length, width, and height of 4650mm, 1850mm, and 1715mm respectively, with a wheelbase of 2700mm. Its engine delivers a maximum power of 131kw and a maximum torque of 265nm.

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StChristian

09/11/25 4:21am

I've disassembled the heater blower several times myself, and found the Chang'an minivan relatively easy to work on. The general procedure is: first disconnect the negative terminal of the car battery to prevent short circuits. Then remove the interior trim panel or dashboard section in front of the passenger seat to locate the heater blower. Use a screwdriver to remove the mounting screws, and when carefully pulling out the blower assembly, remember the wiring connector positions - don't yank them forcefully. Disconnect the wiring and hose connections (the hoses may contain coolant), using pliers to clamp the hose clamps before removal to prevent fluid leaks. When installing the new blower, follow the reverse sequence and test the airflow after installation. The whole process requires a Phillips screwdriver, wrenches, gloves, and cleaning cloths. The Chang'an's simple design means it can be done in about half an hour, but patience is needed to avoid damaging plastic components. If unsure about the blower model or wiring, it's best to take photos for reference during reassembly. After reassembly, check the AC system seals and maintain cabin ventilation. Regular maintenance can reduce the frequency of such repairs.

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