Maintenance records of 12 E300L W212 used cars

  10
 September 3, 2024
Coordinates Guangzhou.
The original goal is about 7w BMW E66 730Li, inadvertently felt about W212, and then did a lot of homework online, deeply influenced by the moderator and the bosses of this edition, finally decided to buy E300L.
The car purchased went on board in May 2012, with Harman Catton on top of four seats. there were two minor accidents in the front (which can be tested by a third party) with a mileage of 25w km, and the first 17w km was basically maintained in 4s stores. I summed up the important maintenance items:
15-02-1410w fuel system maintenance brake oil spark plug triangle belt wave box oil
18-03-08 17w6 wave box oil replacement 9L wave box seat glue nano-indoor dry cleaning
18-09-0319w evaporation box deep cleaning skylight guideway maintenance lubrication
19-11-2522w replacement of snow coolant battery for auxiliary battery

Interior appearance:

There is a dent in the front cover, which requires sheet metal painting.

There is a scratch on one tire and it looks like it needs to be replaced.
The smell in the car is super big, so the soundproof cotton should be removed and the environmentally friendly materials should be replaced.

There is no film on the front block, so you need to stick a heat insulation film. There’s a membrane on the side.

One of the headlights doesn’t work.

Tested by the mechanic, it is necessary to replace two front shock absorbers, two front lower swing arms (bent arms), and two ball heads.

The final list is shown in the figure:

First, take some photos, including changing the bottom plate, sticking the film, and changing the tire:
Deodorization and sound insulation varies from 3000 to more than 6000 according to the grade of the replacement material. I chose a grade of 5300. Now I think that a 3000 gear is enough, and here I spend some more budget.

The Weigu vk70 film of the front block is delivered in different places and then the local physical store is constructed, claiming that the cross-district does not support the electronic warranty card. after the experience, the individual more recommended to support the remote electronic warranty card, 500 yuan front block / 1000 yuan of the whole car’s dragon film wings.

Tire size related to the annual review, tangled for a while, finally determined to use 23545 R18 according to the strict version of the proposal, because there is a local Xiaopeng cyclist is to do Leluchi wholesale boss, so choose Leluchi, just for a new tire feel very good, but because has not done Leluchi new tire with Michelin new tire comparison, so can only say that this new Leluchi experience is much better than the old Michelin experience.

In line with the principle of supporting domestic production and saving money, the shock absorber chooses cheap domestic products with a two-year warranty. After all, as a spare car, this car doesn’t drive much mileage every year, so you can make do with it.

If you remember correctly, the replacement of the lower arm needs to be replaced with “No. 70 bearing”, and the mechanic recommends using the original parts (to avoid abnormal noise as much as possible).

The brake oil is very new and has not been replaced; the differential oil has been changed a little more than 1L, and the master did not do the cleaning step.

It took a long time for the gearbox oil to be changed, but I finally compromised. For the sake of the old oil, the Buddha accepted it. Gearbox oil + steering power oil used a total of about 6L.

In terms of engine oil, I guessed that the original owner must have used 40 oil (still very new). After a struggle, I decided to try a 30 one. I bought a 9L Foss XTL at 618 and actually used 8L.

How you feel after being prepared:

When the oil changes from 40 to 30, the feeling is very different. The engine runs more closely, and the noise and vibration are less. I am very satisfied.

The gearbox shift is much better than it was before.

The effect of cheap shock absorbers made in China is also much better than that of the original factory.

After the tire was replaced, the previous brake jitter disappeared (I once thought that the brake jitter was the problem of the brake system, but after the replacement, I knew that the old tire was not even round because of the failure of front shock absorber for a long time. )

The foot brake felt unstoppable, so the master adjusted it.