2. Open the engine compartment cover of the vehicle and check the position of the heating water pipe. Usually, the heating water pipe is located in the engine compartment, near the cab side.
3. Find the air inlet of the heating water pipe. Usually, there will be a snap ring at the air inlet, which needs to be removed with a flat-nose pliers or a flat-head screwdriver.
4. After the air inlet is removed, remove the snap rings at both ends of the heating water pipe with flat-nose pliers or flat-head screwdriver, and be careful not to damage the snap rings and water pipes.
5. Take the heating water pipe out of the car and check whether the water pipe and related pipes are damaged or leaked. If there is any problem, it needs to be replaced or repaired in time.