Regarding the Mercedes-Benz differential oil, the official seems to say that it is maintenance-free for life, do you believe it? Anyway, I don't believe it. Oil products always have a shelf life, and their performance will always decline with frequent use and time. In addition, whether the inside of the differential is worn or not can generally only be judged by the discharged differential oil. If there is abrasion, the discharged oil can see metal chips.

Moreover, the replacement of the Mercedes-Benz differential assembly is a very expensive cost. If the maintenance is not performed properly, the differential will be scrapped after the warranty period, then you will have to pay more than 40,000 to 50,000. At that time, you estimate I have to vomit blood.

If you find that your Mercedes-Benz has the following conditions, you have to pay attention to whether there is a problem with the differential: at 80-100km/h, when the doors and windows are closed, there will be a whine when you step on the accelerator. When you refuel in the D gear, you will hear a harsh whistling sound. There will be a buzzing sound from the rear of the chassis, so if you eliminate the bearing problem, you can focus on the differential.

So, let's change it honestly!

Oil change interval: 40,000-60,000 kilometers is recommended;

Oil standard: it complies with GL-5 standard and can be used for hypoid limited-slip gear oil.

Oil specifications: Flowserve FE75W85, LS75W90

The last thing to say is that some people replace the differential oil with 100,000 yuan, and that oil is almost sludge. If you don’t replace the differential, sooner or later, it will be over. Of course, some car owners look at the oil after the replacement is good, don’t you think Unfortunately, a very important function of changing the differential oil is to judge whether there is abnormal wear and tear of the differential. Besides, it is really not a loss to replace it after 40,000 kilometers, not to mention that it is very cheap to replace the differential oil.