It was finally handled yesterday, and some minor twists and turns were recorded for reference by riders.

Since completing the maintenance of the 12W-kilometer, the auto repair company quoted me close to 5K for the delayed replacement of the air intake adjustment gear, which is not expensive. This store is far away from home and I want to find a convenient one. According to the reference for similar fault repair cases provided by riders in our forum, you can find a repair shop near your home for self-purchased parts. So I found the TB parts sellers provided in the forum and found the first one (Some riders said that this house has similar names, and I seem to have gotten the wrong one.) I ordered related parts for 271: intake wheel, exhaust wheel (I also saw online saying that the exhaust wheel will break early and late, and suggested replacing it together), timing chain, tensioner, chain plate (the seller didn’t issue this and said that they generally don’t need to replace it, so they replaced me with a set of valve cover pads at the same price), thermostat 350 (I found that the thermostat had some leakage traces during inspection and so I simply replaced it together), a total of 2.3K of parts purchased online here. The nearby auto repair shop I found was not big. The little boss was from Chengdu Sanhe Audi who had been repairing cars for more than ten years. He thought that there should be no problem replacing this one. The working hours were miscellaneous and more than 1,000 (plus changing brake fluid).

As a result, after waiting for a day, the news came that the above-mentioned things were still faulty after replacing them. The installer said he suspected that there was still a problem with the sensor and asked him to find a supplier to send a new sensor. Bosch paid 260 yuan, but the fault still remained after replacing… This is depressing! I suspect that there is a problem with the installation, but the master said that there will be no problem with the installation. The overall situation is most likely that there is a problem with the quality of the intake wheel product. The TB seller vowed that the product is fine and also promised to send another one, but he will not bear the cost of reassembling and disassembling it if he dies. The auto repair shop was very confident that there was no problem with the installation and said that it could be tested by a third party. If it was an installation problem, he would take full responsibility. I didn’t want to dwell on this, so he would solve the problem early. I asked him to find a supplier to replace the intake wheel and then reinstall it to compensate him for the working hours. If it still didn’t work, he would be fully responsible for it. Later, when the new wheel was replaced, it would burn a little, and the trouble code would disappear. The computer test was normal.

Due to the compensation for the second disassembly and disassembly of the auto repair shop and the antifreeze, the parts processing cost was miscellaneous and the total cost was more than 4,000 points.