Do it yourself and replace the heating water pipes

  13
 September 4, 2024
Today, I spent a total of about 5 hours, changed the warm air pipe, outside the repair shop quoted water pipe 300 antifreeze 150 man-hours 260 is about 700 yuan, I bought a total of more than 100 domestic antifreeze online, save 500 yuan to drink in the evening

Because in the basement, the light is not very good, and there are not many pictures of dirty hands.
Let’s start.

Preparation tools, mainly No. 8 socket, then plum blossom wrench set, crosses and word screwdrivers, as well as a small flashlight and a USB lamp.

Free delivery for more than 60 pieces of shopping.

First loosen the three red ones, pull out the pipes, and then be sure to pay attention to the air filter base here. There are three rubber piers in the three yellow positions. You’d better use a small screwdriver to tilt it up, and then you can pull it down with a little effort. The one on my left has been broken by the repairman before, it’s so sticky with two brothers, it’s broken again this time!

Remove the red cover, there are two screws at the back of the cover, and then the oil ruler is fixed with him. Loosen the screw of the left black harness box before taking it, or you can’t take it off.
Then there are five screws in the yellow ring in the air intake part, and the big pipe that probes down the hand in the headlights. If there is a spring, just turn it open with a screwdriver.
Small pipes and pipes must not be too violent, they all have Bakelite parts, and they are very fragile at the end of last year.

Then you can see this broken water pipe, connecting the thermostat and the air heater, there is a sticking spring, raise it with a screwdriver, it is a little tight and difficult to pull out, use a screwdriver to assist, do not pull out the section behind the firewall, this does not need to remove the wiper water shield, the card spring is in the yellow circle, I began to listen to the online tutorial to remove the wiper water shield, wasted more than an hour. no, no, no.
When installing, we should pay attention to whether the seams of the spring are right or not. I can’t get on the card for a long time. Then I take the spring and use a small word screwdriver to put it on the warbler card.
The following is relatively easy, pull and plug, faster action can reduce the flow of antifreeze

After installing, the position of the snap spring is close to the pipe fitting joint, try it by hand without loosening, get it.
Then put each part back in reverse order, check that the line clips of each plug pipeline are in place, there are no more screws, add antifreeze, the car is not abnormal, the instrument is not abnormal, there is no obvious leakage, do not flameout until the water temperature comes up, the radiator fan starts, it should be no problem, go out for a run, keep the water temperature at 90 degrees, turn on the cover to see no obvious leakage, and fix the flameout. Check the antifreeze level, replenish the antifreeze, and finish the work.

It is not recommended to do it by yourself. it takes too much effort to remove it. Do not try if you do not have the ability to do it. Don’t be too violent.

Another step towards the goal of a second-hand repairman.
You are welcome to criticize and correct.