The Nth time to repair the oil spill problem of Xiao Tu Ben. It has been repaired many times, but there is no cure.
Antecedents: 1. Https://a.xcar.com.cn/bbs/thread-97872227-0.html?xuid=18906944
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6. Https://a.xcar.com.cn/bbs/thread-98370390-0.html?xuid=18906944
What type of small Tuppen will not be introduced in detail, there are all above, and after entering this year, endless maintenance has begun.
Basic information: Xiao Tuben, who was born in Beijing on October 14, 2013, was returned home on November 22 of the same year and was licensed on the 26th for a total of 122000 kilometers.
According to the procedure, I made an appointment at 12:00 in the morning and drove back to my mother's house. Every time I came here, my wallet was bleeding.
This year, fix an oil spill. It's five-figure silver.
Poor little Tuppen, the number 5 was hit two days ago.
Students who want to know what happened the other day can read the post I sent the day before yesterday.
The meal at the Mercedes-Benz four Ace store is not introduced too much. The car washing in the past six months has been contracted by the Mercedes-Benz four Ace Store. You can imagine how many times it has been repaired.
After SA pick up the car, inspect the car and send the order into the workshop, ready to start work.
Send an order into the workshop, get on the shelf and prepare for treatment
In the workshop, waiting for medical treatment, waiting for medical treatment of big Ben, Xiaotu Ben, AMG, smart
Lift and check first to confirm the oil leak
The chassis of Little Tuppen
At present, it has been confirmed to replace the crankshaft oil seal and wave box oil seal. A passing DT teacher said that this is the most difficult oil seal to change in the whole car. It is necessary to remove the exhaust cylinder and transmission shaft before you can lift the gearbox.
After all, you need to keep the car for a few days, and it is impossible to supervise the whole process. I can only say that you can go and have a look at it when you are free. This store is away from the company's 15KM. I will go and have a look at it at noon these days.
After that, I will continue to update, first drive my Dehara Lang (imported from Wolfsburg, Germany, Volkswagen Longyi) home.
2022.8.16 Update
Today to take a look, almost completed, four Ace described as engine and gearbox connection leakage, probably in front of the gearbox, engine oil pan back
The oil that had just been changed in July, four Ace suggested that the oil should be connected and could still be used, so he put it away in a clean container and added it back when it was finished.
Drive shaft
In order to lift the gearbox, the transmission shaft, exhaust cylinder and some related accessories must be removed before the gearbox can be separated.
You haven't seen the full picture of the 7G TRONIC gearbox, have you?
You can refer to it, but it's best not to see it. it's not a good thing to see the gearbox, and no one will be bored to lift the gearbox down.
The middle circle is the torque converter, the strict version often reminds you to empty the old oil when changing the ATF transmission oil, that is, to empty the old oil inside, there is 3L old oil, if you do not go to visual supervision, four Ace will be lazy and only change 6L oil.
After disassembling the ECO oil pump, turn the gear inside, there will be an oil discharge screw, a very small screw, that is, the hydraulic giant. These photos are from yesterday. I forgot to take them.
There are oil stains under the old parts.
Comparing the new and old parts, you can clearly see the oil stains under the old parts, which should be engine oil according to the viscosity.
Or the comparison of new and old parts
After removing the gearbox, it looks like this.
Oil spill place
At the transmission shaft, the gearbox was full of oil.
Today, the formal maintenance is completed, the replacement of two oil seals, a total of 2800 yuan, the gearbox should be reset, the gear upgrade is not active, it should be to re-learn, who knows how long it will take to recover?
In the past few days, I have been driving the A6. My small fourth ring was manufactured in March 2011. I picked up the car in May with a 2.4 six-cylinder engine. I seldom drove it after 13 years of buying a Mercedes-Benz. It was either driven by a power outage or stopped downstairs for my family. Now it is only 60,000km. It is ridiculously new, not only the original paint of the whole car, but no difference between the interior and the new car, unlike the F of the Mercedes-Benz OFF.
I haven't opened it for a long time, so I go to maintain it by myself once a year. I have to say that the six-cylinder engine is indeed stable, and the four-cylinder engine is not smooth all the time, but the central control design is really not good, and Mercedes-Benz is not the product of the same era.
These four laps are bought for waste. You have to run more in the future. Keep running, little four laps.
At present, because of the oil leakage problem, the crankcase exhaust pipe, the valve cover gasket, the three tubing of the turbine, the rear oil seal of the crankcase and the oil seal in front of the wave box have been replaced. I hope it can be solved. Keep running.
Two oil seals, material is not expensive, labor is expensive