Because I am busy, I only hand in the homework after maintenance in November.
The flagship Tiguan has been under normal maintenance for 15 years. This time due to the epidemic, we dragged it until we traveled more than 67,000 kilometers before maintaining it. Therefore, there are many maintenance contents, including checking batteries, changing oil, machine filter, air filter, changing transmission oil, brake oil, brake pads, cleaning engine and oil circuits, cleaning air conditioning, computer inspection and ECU upgrade, replacing front and rear wipers, changing coolant, adding glass water, and changing tires. Glass water and simple wiper. I can finish it manually by buying it from Jingdong. The price difference between 4S and TOHO for tires and brake fluid is too much. For the same brand and model, the price of 4S has almost doubled. Therefore, after making it in TOHO, it feels that the performance is not bad. It is also quite fast, and it is done on the same day. Therefore, 4S did routine maintenance, inspections, and changes of oil, machine filter, air filter, gearbox oil, brake pads, cleaning the engine and oil circuits, cleaning the air conditioner, computer inspection and ECU upgrades. The following are all relevant work drawings, which you can see if you know that students should go down.
There is nothing special about routine maintenance, so I won’t talk about it here. There are quite a few steps to change the main gearbox oil. Remove the chassis armor first, drain the oil, and then remove the tray under the gearbox. Clean the tray with cleaning solution, then remove the alloy protective disk, and also clean it. Then clean the circuit boards and metal parts at the bottom of the gearbox. Connect the electric pump, pump out all the old gearbox oil, and then simply clean the electric pump and gearbox. Then pour part of the transmission oil into the transmission chassis tray, and add other transmission oil into the transmission through the electric pump. After completion, put the tray back and complete the relevant work.