60,000 kilometers of maintenance, the key ~~ deal with abnormal noises, and the rear wheel is guaranteed with a guarantee ~~
SeanGunther 
10 Catalogue
- 60,000 km maintenance
- Summary of 60,000 kilometers, the engine antifreeze said in detail
- The key abnormal noise ~ ~ the sheep’s horn of the rear wheel ~ the key point is coming.
- How to check if it is the abnormal sound of sheep’s horn?
- A sudden discovery
- Four-wheel positioning of BMW 4S store
- Write at the end.
60,000 km maintenance
The car was accompanied by a difference of 14 days for 2 years, reaching 60,000 kilometers. It’s time for maintenance. Previously, I also posted a post in the forum to ask all the bosses about when the gearbox oil will be changed. Combined with the situation of his own car, he finally decided to replace it at 80,000 kilometers. As for gravity replacement or circulating pump replacement, it will depend on the situation.
In fact, 60,000 kilometers of maintenance is the same as what was made of 20,000 or 40,000 kilometers before. It’s just that this time I added another maintenance for 60,000 kilometers, the maintenance of engine coolant. The picture below and above.
In fact, 60,000 kilometers of maintenance is the same as what was made of 20,000 or 40,000 kilometers before. It’s just that this time I added another maintenance for 60,000 kilometers, the maintenance of engine coolant. The picture below and above.
During the 60,000 km to 4S maintenance, it was found that there were oil and gas stains on the valve chamber cover. Is it too hot? Or did I add too much oil? Next time I’ll take a look, if there are always oil and gas spills, I need to check the problem. The usual 5.25 litres of oil. Is 5.25 litres of engine oil a little too much?
The color of ten thousand kilometers of engine oil is passable.
Spark plug, I change it according to the technical manual of 20,000 kilometers. Please don’t spray if I change it for 20,000 yuan. I’m glad I’m happy. Why change 20 thousand, I have my reasons.
The red pentagram was removed from the second cylinder. It seems that the burning of the second cylinder is a little worrying.
Conventional oil filter
Twenty thousand air is filtered once.
Twenty thousand gasoline was filtered once. It’s a bit of a pity to change 20,000 kilometers. Next time I will look at the mileage to postpone its replacement as appropriate.
The bracket of the lower guard plate of the engine, when the coolant was changed, the lower guard plate was removed and found that the bracket was a little out of shape. I guess I got a piece of mud on the chassis once. It was supposed to be changed, but it’s not in stock. The maintenance supervisor came straight over with a hammer to help me flatten it out. Tough enough, this thing is actually very cheap, 150 yuan. Later, I saw something more ferocious, and I just screwed it up and asked the maintenance brother to knock it back. Looked at me dumbfounded. Actually, this thing is also very strong.
60,000 kilometers, I asked to change the coolant, which is called pumping air pressurized coolant in the 4S store. I forgot what it was called.
The engine coolant, which is in that big pot, has a total of 6 liters. There are two kinds of color coolant in the 4S store, one is the new blue one, and the other is the green one in my car. I want the green one. The green one is a 1: 1 ratio. The blue one is 1.1 to 1. There is no distilled water in this 4S store. I bought eight bottles of 500ml myself. Only six bottles were used.
The other pipe of that equipment is connected here to draw air from the cooling pipe or something.
Change and use this thing to pressurize it to see if there are any leaks in the pipeline.
Summary of 60,000 kilometers, the engine antifreeze said in detail
Other maintenance of 60,000 kilometers is the same as that of 20,000 or 40,000 kilometers. The reason for changing the engine coolant this time is that I saw that the color of the engine coolant became a little strange, the first color became lighter, and the second color became a little yellowish green and black. It can be visually compared with the coolant in the small pot. When the two lids are opened, the one in the small pot is still green, which is basically the same color as when buying a new car. The one in the big pot turned yellow and black. Just change it.
As for the coolant recommended by friends for lifetime maintenance-free, it is actually a kind of silicone oil and so on. I just denied it. I think this thing is as bullshit as the so-called gearbox is maintenance-free for life. Why is there a shelf life for oil if it doesn’t deteriorate over time?
The purpose of replacing the coolant in 4S is to see how 4S is replaced, including equipment flow, etc. After replacing the coolant with the 4S equipment, turn on the diagnostic mode, keep the hot car on the throttle to 3000 rpm or more than 3000 rpm for 10-15 seconds, then idle for 30 seconds and repeat 5 times. This seems to be the way mechanical pumps vent air. G38 engine coolant is a mechanical water pump. The low-temperature cooling of the small pot uses an electronic water pump, which discharges air in a different way. The previous generation of F18 5 series used electronic water pumps. The way of air discharge of electronic water pump is different from that of mechanical water pump. The most fear of changing the coolant is that the exhaust air is not clean, which will cause the water temperature to be too high.
The price of 4S for coolant is less than 1200. It’s expensive. Anyway, this time at 4S, take a look at the flow of 4S for coolant. If there is the same equipment in the maintenance shop outside, or even better than that in the 4S store, I guess I will replace it outside next time.
As for the coolant recommended by friends for lifetime maintenance-free, it is actually a kind of silicone oil and so on. I just denied it. I think this thing is as bullshit as the so-called gearbox is maintenance-free for life. Why is there a shelf life for oil if it doesn’t deteriorate over time?
The purpose of replacing the coolant in 4S is to see how 4S is replaced, including equipment flow, etc. After replacing the coolant with the 4S equipment, turn on the diagnostic mode, keep the hot car on the throttle to 3000 rpm or more than 3000 rpm for 10-15 seconds, then idle for 30 seconds and repeat 5 times. This seems to be the way mechanical pumps vent air. G38 engine coolant is a mechanical water pump. The low-temperature cooling of the small pot uses an electronic water pump, which discharges air in a different way. The previous generation of F18 5 series used electronic water pumps. The way of air discharge of electronic water pump is different from that of mechanical water pump. The most fear of changing the coolant is that the exhaust air is not clean, which will cause the water temperature to be too high.
The price of 4S for coolant is less than 1200. It’s expensive. Anyway, this time at 4S, take a look at the flow of 4S for coolant. If there is the same equipment in the maintenance shop outside, or even better than that in the 4S store, I guess I will replace it outside next time.
The key abnormal noise ~ ~ the sheep’s horn of the rear wheel ~ the key point is coming.
The key point is: in the first three days of maintenance, I accidentally found that there was a regular abnormal sound of snoring coming from the back of the right side at a low speed. This low speed means that the brake pedal is completely open and does not step on the accelerator at a speed of 10-15 yards, as well as when hitting the direction and crossing the undulating road. And the occasional bumpy road, hanging has a kind of unfinished feeling. Originally, it was supposed to be checked during maintenance, but then it was delayed for several days on Saturday because of an emergency. The result of the investigation is that there is something wrong with the sheep’s horns of the two rear wheels.
How to check if it is the abnormal sound of sheep’s horn?
1. When you get in the car, there will be a creaking sound on your ass.
two。 Lift the car with the elevator and press it hard on the stout beam of the rear bridge with your hands, and there will be a creaking sound.
3. Low speed, brake pedal light, do not step on the accelerator. At a speed of 10-15 yards, on a not-so-good road or a slightly undulating road, a regular grunt can be heard from behind. Or the sound of purring from behind can also be heard in the direction at this low speed. (this is my case, and then the 4S store used the above two means. )
4. Another is to make it easier for cyclists to check whether their car has encountered a sheep’s horn, park the car, lift the position above the rear wheel, and then sit in the driver’s seat to see if there is a creaking sound.
The above four methods to determine whether it is the sheep’s horn problem. Because my car is still in the warranty period, went to the TC, the manufacturer agreed to replace, waiting for accessories to come from Shanghai, and then can not wait to replace. Friends during the warranty period, there is this problem, if you put up with this abnormal noise, you can choose not to change, because it does not affect safe driving. But once you have a warranty and want to change it, it’s a little expensive. The price of a sheep’s horn is more than 8900, not counting the labor cost. There is a maintenance photo below.
two。 Lift the car with the elevator and press it hard on the stout beam of the rear bridge with your hands, and there will be a creaking sound.
3. Low speed, brake pedal light, do not step on the accelerator. At a speed of 10-15 yards, on a not-so-good road or a slightly undulating road, a regular grunt can be heard from behind. Or the sound of purring from behind can also be heard in the direction at this low speed. (this is my case, and then the 4S store used the above two means. )
4. Another is to make it easier for cyclists to check whether their car has encountered a sheep’s horn, park the car, lift the position above the rear wheel, and then sit in the driver’s seat to see if there is a creaking sound.
The above four methods to determine whether it is the sheep’s horn problem. Because my car is still in the warranty period, went to the TC, the manufacturer agreed to replace, waiting for accessories to come from Shanghai, and then can not wait to replace. Friends during the warranty period, there is this problem, if you put up with this abnormal noise, you can choose not to change, because it does not affect safe driving. But once you have a warranty and want to change it, it’s a little expensive. The price of a sheep’s horn is more than 8900, not counting the labor cost. There is a maintenance photo below.
Start dismantling
The location of the noise.
From a more straightforward point of view, the position of the pentagram marked red. The connection point of the hem arm, the rubber sleeve of the sheep’s horn.
Take it apart. My bearing. At that time, I thought the regular noise came from the bearing, but the bearing broke down and became louder and louder with the speed of the car.
This is the torque of some screws. No, I remember very well. Anyway, the 4S store can find the maintenance manual through the software, the specific amount of torque. There will be no problem playing according to the standard.
The red cloth wraps the brake pump and is bound to the hem arm. The maintenance manual requires the removed brake sub-pump to be fixed. It’s okay to hang it, but I’m afraid that the brake tubing and the brake warning line will be broken.
The way he emptied the sheep’s horns. Hey. BMW 5 connecting rod + drive half shaft.
Two dry wheel frames, commonly known as sheep’s horns.
This is a new sheep’s horn, which is said to have improved the quality of that rubber sleeve.
New sheep’s horn, red position.
New sheep horn, get in the car. The source of the abnormal noise ~ ~ changed to twist the lower arm with a screwdriver and shook it left and right, and there was no sound. And will automatically return to position. It means it’s done.
A sudden discovery
Today, when I was repairing the sheep’s horn, I came across a 530LE that was also trimming the sheep’s horn. It seems that there are a lot of problems. I found something amazing.
530LE, it is the back-left problem. The warranty has been changed to the left. It probably won’t last long behind the right. I have a noise in both of them directly. Replace it all at once.
The rear reinforcement of 530LE. My God, why the rear reinforcement of 530LE is the same as the imported short shaft, and why. There is only one lateral stiffener behind the 530LE. I envy you.
Four-wheel positioning of BMW 4S store
This time because the TC warranty has changed the sheep’s horn, it is necessary to do four-wheel positioning. Of course, it is also free. If you change the sheep’s horn, the 4S store will give you a four-wheel positioning. I just picked up the car and wanted to do it because of the high speed. As soon as I heard the quotation, I gave up and did a four-wheel balance of 40 yuan in Tuhu. The four-wheel positioning of the BMW 4S store costs more than 800 at a time, and the discount is about 680. This time because of the change of sheep’s horn, take a look at the data of the four-wheel positioning of my car.
My car traveled 60,000 kilometers and measured the tires while doing maintenance. The rear wheels are still 4.9mm and the front wheels are 5mm. This data will be useful later.
My car traveled 60,000 kilometers and measured the tires while doing maintenance. The rear wheels are still 4.9mm and the front wheels are 5mm. This data will be useful later.
The four-wheel positioning equipment in the BMW 4S store is still very good. To input tire pressure, how much thickness is left, the lowest hub to the height of the eyebrow and other data. It feels much better than the universal four-wheel locator on the outside.
The first time I saw this thing, I used it upright before.
Good equipment on the right side
Good equipment on the left
Adjusted data. The data of the rear wheel is perfect. I forgot to shoot the front wheel data. The BMW adjusts the rear wheel data first and then the front wheel data.
After the adjustment, there will be records, the data before the adjustment, the data after the adjustment.
Adjust the data record, after the adjustment, 4S brother said that this is the best data he has adjusted so far.
Maintain it, repair it, and give it a super-fine wash outside. It looks comfortable. One word, Shuang.
Write at the end.
This 60,000 km maintenance, replacement of engine coolant, quality assurance of rear wheel sheep horn, to share with the riders. Please don’t spray.
Because I like cars, but also willing to toss about, but also stand on a rational point of view to self-analysis. Some things are also based on their own groping, learning to slowly find the most suitable for their own car maintenance program. Because everyone uses the car in different conditions, the concept of treating the car is different.
I’m sure a lot of people will spray me this time, but according to my actual feeling of using the car and the facts I can see, I will change the antifreeze and ask the bosses not to spray.
As for the problem of abnormal sound of sheep’s horn, it can be regarded as sharing some of the process of investigation and maintenance with motorists. I also looked up a lot of information on the Internet because of the abnormal noise. Only one article was mentioned because of the abnormal noise caused by the sheep’s horn problem. Because troubleshooting abnormal noise is an extremely painful process, especially the chassis abnormal noise, if you do not know, you may go around a big bend before you can find out the root cause of the abnormal noise.
Finally, I wish all the distinguished BMW 5-Series owners a pleasant car.
Because I like cars, but also willing to toss about, but also stand on a rational point of view to self-analysis. Some things are also based on their own groping, learning to slowly find the most suitable for their own car maintenance program. Because everyone uses the car in different conditions, the concept of treating the car is different.
I’m sure a lot of people will spray me this time, but according to my actual feeling of using the car and the facts I can see, I will change the antifreeze and ask the bosses not to spray.
As for the problem of abnormal sound of sheep’s horn, it can be regarded as sharing some of the process of investigation and maintenance with motorists. I also looked up a lot of information on the Internet because of the abnormal noise. Only one article was mentioned because of the abnormal noise caused by the sheep’s horn problem. Because troubleshooting abnormal noise is an extremely painful process, especially the chassis abnormal noise, if you do not know, you may go around a big bend before you can find out the root cause of the abnormal noise.
Finally, I wish all the distinguished BMW 5-Series owners a pleasant car.
The Heavenly King covers the ground tiger, Baota town river demon ~ ~ back shadow kills ~ ~
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